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Global OBD II.book

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1. TDC TID TINT TMP TOUTT Society of Automotive Engineers The organization which controls most of the documents defining the interface between the vehicle s OBD II controllers and off board test equipment SAE Standard defining protocols which are used for OBD II communications Two versions of this protocol are used for OBD II the 10 4 Kbits sec VPW protocol and the 41 6 Kbits sec PWM protocol The title of this document is Class B Data Communication Network Interface SAE Recommended Practice defining standard terminology to be used for support of OBD II testing The title of this document is Electrical Electronic Systems Diagnostic Terms Definitions Abbreviations and Acronyms SAE Recommended Practice defining the industry standard connector used for OBD II This connector contains 16 pins 7 which are defined by the SAE and 9 which are available for manufacturer specific uses The title of this document is Diagnostic Connector SAE Recommended Practice defining the requirements for a standard tester to be used for performing OBD II testing The title of this document is OBD II Scan Tool SAE Recommended Practice defining the operating modes services to be used by an OBD II Scan Tool for accessing diagnostic data from an OBD II compliant vehicle The title of this document 1s E E Diagnostic Test Modes SAE Recommended Practice defining the diagnostic trouble codes DTCs to be used by the vehicle s ECU for reporting
2. MTS 3100 Mastertech Global OBD II Application Page 54 Diagnostic Data Parameters ENGINE PERCENT TORQUE DATA AT POINT 5 UNITS RANGE 125 to 130 MAXn is the torque limit that indicates the available engine torque which can be provided by the engine at point x where x point 2 through point 5 of the engine map This parameter may be influenced by engine temperature after power up and other stationary changes calibration offsets sensor failures etc ENGINE REFERENCE TORQUE UNITS RANGE N TQ REF is a fixed reference value that represents the maximum available torque the engine produces within a defined range of parameters ENGINE RUN TIME RANGE 0 to 65535 0 to 1092 Engine run time RUNTM or time since engine start represents the ECU internal timer that starts when engine 15 first started This parameter is calculated by the ECU and resets with every ignition key cycle ENGINE SPD UNITS RANGE RPM Engine Speed 15 an indication of crankshaft revolutions per minute The ECU uses input engine speed to make determinations about current engine operating conditions and the operation of various engine management system output components EQ RATIO B1 S1EQ RATIO B2 S3 EQ RATIO B1 S2EQ RATIO B2 S4 EQ RATIO B1 S3EQ RATIO B3 S1 EQ RATIO B1 SAEQ RATIO B3 S2 EQ RATIO B2 S1EQ RATIO B4 S1 EQ RATIO B2 S2EQ RATIO B4 S2 UNITS n a 0 000 to 1 999 Equivalence Ratio Bank x Sensor x EQ RATIO
3. Other Results OUTT Parameter Help PCM PCT Pending DTCs PID PM PNTE PMNTE PRES PTO PWM PWR Pxxxx A test mode service where the results of the On Board Tests are reported for tests which are run on non continuously monitored systems These tests are manufacturer specific and are reported for manufacturer assigned test IDs TIDs and component IDs CIDs Test values are reported by the ECU along with minimum and or maximum acceptable limits for the test The tester displays the PASS FAIL status for each TID CID combination Pressing displays the data used for determining the test results This test mode service is not supported by all vehicles Outlet Temperature Additional information about the highlighted parameter Parameter Help is accessed by pressing the and Qa 34 keys simultaneously while the desired parameter is highlighted Powertrain Control Module The module which controls vehicle engine and transmission operation and communicates diagnostic data information to the technician Percentage Percent A test mode service where the results of the On Board Tests are reported for tests which are run on continuously monitored systems These test results are reported the same way DTCs are reported using code designations of the form Pxxxx These test results can indicate a condition which could cause a DTC to be set if the condition persists This test mode service is not supported by all vehicles Pa
4. Press YES or NO O2 Sensor Test Menu 1 Bank 1 Sensor Bank 1 Sensor Bank 2 Sensor 4 Bank 2 Sensor O2S Data Display A warning message indicating that the O28 TEST RESULTS may be inaccurate means the vehicle ECU 15 reporting that O2S tests have not been completed The status of the oxygen sensor tests can be monitored in 6 OBD Evaluations under O2S Eval Test For some vehicles O28 test results may not be available until all OBD Evaluations have been completed Most vehicles can provide O2S test results for multiple oxygen sensors When the O2S Test Results mode service 1s selected the MTS 3100 queries the ECU to determine which oxygen sensors are present It then displays a list of these sensors so that you can select which sensor s test results to examine To select a sensor press the key listed on the left or scroll down to the desired sensor and press GMAB Once the sensor has been selected the MTS 3100 determines which O2 sensor data parameters are available for display It then displays data for each of the parameters The parameters vary depending on the vehicle manufacturer Only parameters which are supported by the vehicle ECU are displayed The Oxygen Sensor Monitoring Test Results are reported as constants programmed in the vehicle ECU or calculated values by the vehicle ECU The following table shows programmed and calculated data parameters PARAMETER TID TYPE MTS 3100 Masterte
5. Mass Air Flow MAF sensor is an input to the ECU and represents the amount of air that the engine is taking into the manifold displayed as a flow rate pounds per minute or grams per second MAF flow rate increases with engine load and 15 typically 4 7 gm sec at idle or 17 20 gm sec at 2500 RPM warm engine Note that the R in parenthesis indicates the parameter is rate related Engines that utilize two MAF sensors use MAF A and MAF B to indicate the actual sensor reading from each MAF sensor MANIFOLD SURFACE TEMPERATURE UNITS RANGE 4010 215 MST displays the intake manifold surface temperature MST may be obtained directly from a sensor or may be inferred by the ECU using other sensor inputs MANUAL TRANSMISSION GEAR STATUS STATES Manual Transmission Neutral Gear Status N G STAT indicates whether the transmission 15 in neutral clutch depressed and or in neutral or in gear MTS 3100 Mastertech Global OBD II Application Page 59 Diagnostic Data Parameters MAP P MAP A MAP B UNITS RANGE kPa 0101912 0075 Manifold Absolute Pressure sensor is measure of pressure within intake manifold relative to atmospheric pressure Depending on MAP sensor design a frequency or analog output signal can be generated by a MAP sensor for input to the vehicle ECU Atmospheric pressure equals the addition of manifold and vacuum pressures MAP pressure increases with engine load and depending on altitude 15
6. samples VEHICLE SPD 64HPH being data which was saved before the trigger The and keys are ENGINE LOAD 14 5 P 12 9inHg used to scroll through the samples while and go to the first TPS 3e 21 94 or last sample 5 display formats described in the Data List section can be used for displaying data in the Snapshot Replay mode service FUEL PRES aes BE FUEL STAT 1 FUEL STAT 4 UNUSED ST FT 1 6 34 LT FT douces gui ab Sample H HBHsec event is highlighted then press amp 9 and GMJ simultaneously to delete 1t To delete one of the stored snapshot events scroll down until the desired MTS 3100 Mastertech Global OBD II Application Page 27 Basic OBD II Functions 3 Snapshot ADDITIONAL SNAPSHOT INFORMATION Pressing and simultaneously COGI provides additional information about the highlighted diagnostic data parameter This includes an expanded description of the parameter as well as the IDs for the responding ECU s and the test The current status of the diagnostic data parameter is displayed as reported by the ECU For most of the parameters this parameter help screen also displays the minimum and maximum values recorded during the use of this function ur Ual 614RPM ACTIVE KEYS Snapshot Go to Data List Go to Custom List Go to LED List Go to Bar Graph Go to Line Graph Change character size Turn marker on off Return to menu Print Data List Di
7. If You Are Having A Problem Loss of Communication With The Vehicle To verify that the OBD II interface circuitry 15 installed in your tester see OBD II Interface Self Test on page 77 D D DJ U UJ Ds Er 1055 OF COMMUNICATION WITH THE VEHICLE Possible Causes Vehicle s ignition was turned off Diagnostic cable came loose from vehicle s diagnostic connector ERROR WO RESPONSE Vehicle failed to respond to query from tester FROM UEHICLE Recommendations Verify that vehicle s ignition is on Press CENTER Verify that cable is plugged into vehicle s diagnostic connector Press 11959 and attempt to re establish communication with vehicle Ifnone of these work turn tester and vehicle s ignition OFF Then turn ignition ON followed by turning on the tester and attempting to re establish communication Some vehicles fail to respond properly to tester queries for certain tests This 15 particularly true with oxygen sensor tests 1f all OBD Evaluations have not been completed If possible drive the vehicle to complete the OBD Evaluations and then rerun the tests To verify that the OBD II interface circuitry 15 installed in your tester see OBD II Interface Self Test on page 77 MTS 3100 Mastertech Global OBD Il Application Page 75 If You Are Having A Problem Communication Errors COMMUNICATION ERRORS When the Vehicle s ECU responds with an error code a
8. SO 15765 4 500 250 Kbps Protocol Controller Area Network CAN uses a 2 wire 5 volt bus communicating at the specified baud rate for each of the unique CAN protocols A vehicle manufacturer can satisfy the OBD II requirements by implementing any one of the five protocols The SAE J1978 OBD II Scan Tool must provide support for all five protocols in order to allow it to communicate with the ECU s MTS 3100 Mastertech Global OBD II Application Page 70 Understanding OBD II OBD Evaluations OBD EVALUATIONS The vehicle s ECUs contain software which tests the operation of the emissions related components Two types of tests are performed Continuous and Non Continuous There are three types of Continuous OBD Evaluations defined by the SAE Misfire monitoring e Fuel system monitoring Comprehensive component monitoring These tests are run whenever the vehicle operates under conditions defined by the vehicle manufacturer for the tests Eight types of Non Continuous OBD Evaluations have been defined by the SAE Catalyst monitoring Heated catalyst monitoring Evaporative system monitoring Secondary air system monitoring e A C system refrigerant monitoring Oxygen sensor monitoring Oxygen sensor heater monitoring e EGR system monitoring These tests are run once per trip when the vehicle reaches the operating conditions defined by manufacturer for running the tests In general each test has s
9. AECDn Time increments while the engine is running with EI AECD active It freezes 1f the engine stalls AECDx Time is never reset to Zero TOTAL RUN TIME WITH PTO ACTIVE UNITS RANGE Sec 0 to 4 294 967 PTO Time displays the total engine run time with PTO engaged for the life of vehicle PTO Time increments while the engine is running with PTO engaged It freezes if the engine stalls PTO Time is never reset to Zero TPS ABS TPS B ABS TPS C ABS UNITS RANGE 0 to 100 Throttle Position Sensor Throttle Position Sensor B and Throttle Position Sensor C parameters are an input to the ECU and provide information about throttle position For OBD II systems TPS sensor voltage is converted by the ECU and is displayed as an absolute accelerator pedal value in percent TPS percentage changes with the movement of the accelerator pedal and should display 0 20 at idle to above 80 at wide open throttle TURBOCHARGER A RPM TURBOCHARGER B RPM UNITS RANGE RPM 0 to 65 535 TCA RPM and TCA RPM display revolutions per minute of the engine turbocharger TURBOCHARGER COMPRESSOR INLET PRESSURE SENSOR A MTS 3100 Mastertech Global OBD II Application Page 64 Diagnostic Data Parameters TURBOCHARGER COMPRESSOR INLET PRESSURE SENSOR B RANGE 0 absolute to 255 absolute TCA CINP and TCA CINP display turbocharger compressor inlet pressure TURBOCHARGER COMPRESSOR INLET TEMPERATURE RANGE C 40 to 215 TCA CINT disp
10. GETTING STARTED The Global OBD II functions are part of the Scantest mode service of FUNCTION MENU the MTS 3100 s Multi Function Tester MFT Program Card To get To tt started on OBD you must first select ScanTest from the MFT s FUNCTION MENU 2 Digital Meter 3 Oscilloscope 4 Emission Tests 8 Tech Toolbox 9 Setup You must select Global OBD II from the application menu The tester SELECT PROGRAM then determines whether the correct hardware and software necessary to perform OBD II diagnostics are installed 1 Global OBD II Module Status Domestic Asian Heavy Duty Marine Reprogranmning Training Demo CO TJ C OF ee c2 Help for Information MTS 3100 Mastertech Global OBD II Application Page 7 Using The Global OBD II Application Getting Started If you do not have the OBD II Interface Circuitry installed you will not be able to use the Global OBD II functions contained on this program card OBD II TEST MENU 1 OBD II Functions 2 Snapshot Replay e SAE J1850 VPW 10 4 Kbps e SAE J1850 PWM 41 6 Kbps ISO 9141 2 10 4 Kbps ISO 14230 4 10 4 Kbps ISO 15765 4 500 250 Kbps After the hardware configuration has been determined the MTS 3100 displays the OBD II TEST MENU This menu allows you to proceed with vehicle communications via the OBD II FUNCTIONS selection It also allows you to replay data from previously captured snapshot events without being connected to
11. OBD II OBD Evaluations OL OLDRIVE OLFAULT Intake Manifold Absolute Pressure in units of pressure The Unit Conversion function can be used to switch between kPa inHg and mmHg Malfunction Indicator Lamp Used to indicate that an emissions related fault has been detected by the ECU and a DTC has been set Typically the MIL stays illuminated while the fault is present and for 3 ignition cycles after the fault has gone away Even though the MIL is off the DTC will still be present in the ECU s memory and can be read using the tester s DTCs function Module Millisecond A millisecond is 1 1000th of a second Manifold Surface Temperature Mastertech Not Available Neutral Drive NOx NTE carve out area Not To Exceed Oxygen Sensor Oxygen Sensor for Bank 1 On Board Diagnostics OBD is a general term used to refer to any self diagnosis performed by the vehicle s ECUs OBD is also used to refer to the EPA s federal OBD program OBD I refers to California s first phase of on board diagnostics OBD I requires that the ECU diagnose some of the emissions related components and that the DTCs resulting from that diagnosis be made available to the service technician In many cases OBD I codes are displayed via a flashing MIL light The California Air Resource Board CARB required that by 1996 all vehicles sold in California under 8500 GVWR contain a certain minimum on board diagnostic capability to diagnose emissions related
12. e EGR system monitoring NVHC catalyst monitoring e NOx aftertreatment monitoring Boost pressure system monitoring e Exhaust gas sensor monitoring e EGR system monitoring If the MTS 3100 determines that the ECU has not completed all of the OBD Evaluations it displays a warning message You can then select the OBD EVALUATIONS menu item from the OBD II FUNCTIONS menu to examine the status of these tests Pressing causes the MTS OBD II STATUS Hot all of the II System Readiness Tests 3100 to go to the OBD II FUNCTIONS menu have completed on this vehicle Some of the test results mau be inaccurate Press ENTER Additional OBD Evaluations Information Pressing and GI3W3 simultaneously CSQGI3W3 provides additional information about the highlighted monitoring system or monitor test This includes an expanded description of the monitoring I PARAMETER HELP HANES bisfire Monitor Evaluation ID 3 1 8152 SLPPORTIHG ECUS 11 22 11 Engine Cur N A system or monitor test as well as the IDs for responding ECU s and the test The current status of the monitoring system or monitor test is displayed as reported by the ECU For most ofthe monitoring systems or monitor tests this parameter help screen also displays the minimum and maximum values recorded during the use of this function MTS 3100 Mastertech
13. the basic OBD II diagnostic functions e Road test support through the capture of sequences of data parameters Snapshot mode service e User selectable parameter list allowing the user to trade off update rate for amount of data Plot data parameters Print data parameters Extensive use of help functions Display multiple frames of Freeze Data for vehicles that support multiple frames Print data parameters in a Strip Chart Format Displays Permanent DTCs J1979 Mode Service A MTS 3100 Mastertech Global OBD II Application Page 69 Understanding OBD II OBD Communication Protocols OBD II COMMUNICATION PROTOCOLS One of the OBD II requirements is that the vehicle contain a standard serial communication link to off board test equipment This standard communication link turns out to be five separate links two defined by the SAE and three defined by ISO e SAE J1850 VPW 10 4 Kbps Protocol Uses a single wire 7 volt bus communicating at 10 400 bits second using Variable Pulse Width VPW data encoding e SAE J1850 PWM 41 6 Kbps Protocol Uses a 2 wire 5 volt bus communicating at 41 600 bits second using Pulse Width Modulation PWM data encoding e SO 9141 2 10 4 Kbps Protocol Uses a single wire 12 volt bus communicating at 10 400 bits second using UART data encoding SO 14230 4 10 4 Kbps Protocol New European communication protocol using the same UART data encoding as the ISO 9141 2 protocol
14. B boost pressure CAT TMP B1 1 CAT TMP B1 S2 CAT TMP B2 51 CAT TMP B2 S2 UNITS RANGE 40107400 4010 2552 Catalyst Temperature CAT TMP Bank x Sensor x represents the temperature of the catalytic converter substrate for bank x or the bank x sensor x catalyst temperature sensor Catalyst temperature bank x sensor x can be calculated by the ECU or measured from a cat temp sensor The parameter labels are Bx and Sx Bx refers to engine banks or 2 and Sx refers to the sensor positions or 2 Normal catalyst temperatures range from 900 to 1200 F COMMAND BOOST PRESSURE A COMMAND BOOST PRESSURE B UNITS RANGE kPa 0 to 2047 BP A CMD and BP B CMD display the turbocharger or supercharger commanded boost pressure COMMAND INTAKE AIR FLOW A CONTROL COMMAND INTAKE AIR FLOW B CONTROL 0 closed throttle to 100 wide open throttle IAF A CMD and IAF B CMD Intake Air Flow are also known as EGR Throttle on compression ignition engines Intake air flow controls are typically used to induct EGR into a compression ignition engine IAF A CMD and IAF B CMD display a percentage of the maximum IAF that can be commanded e Ifa linear or stepper motor valve is used the fully closed position minimum normally 0 degree throttle angle is displayed as 0 the fully open position maximum normally 90 degrees throttle angle is displayed as 100 Intermediate positions are displayed as a percent of the full open position e Any oth
15. Current Data parameters Display of Freeze Frame Data saved by the controller Display of Confirmed Diagnostic Trouble Codes DTCs saved by the controller Clearing Emission Related Diagnostic Information DTCs Freeze Data OBD Evaluations Status Display of O2 Sensor Test Results Display of Pending Diagnostic Trouble Codes DTCs reported after a single driving cycle Display of Test Results for specific components systems that are not continuously monitored Enables conditions necessary to conduct an evaporative system leak test and Diesel Particulate Filter Regeneration Display of the Vehicle Identification Number VIN stored by the vehicle controller Display of Calibration ID number that uniquely identifies the software within the vehicle controller Display of Calibration Verification Number that determines whether emission related calibrations within the ECU software have been altered Display of In Use Performance Tracking that reports vehicle operating conditions related to monitor completion and monitor conditions Display of Permanent Diagnostic Trouble Codes DTCs saved by the controller Display of ECU acronym and text name MTS 3100 Mastertech Global OBD II Application Page 2 Introduction II System And Vehicle Information OBD II SYSTEM AND VEHICLE INFORMATION MONITOR OPERATION The OBD system 15 capable of identifying the likely area of a malfunction within the electronic powertrain control syste
16. Global OBD Il Application Page 38 Basic OBD II Functions 6 OBD Evaluations ACTIVE KEYS EE fome CS CEE MTS 3100 Mastertech Global OBD II Application Page 39 Basic II Functions 8 Information 8 INFORMATION The Information mode service allows access to vehicle identification number VIN the software Calibration ID Calibration Verification ID s and In Use Performance Tracking of the controller s Not all vehicle manufacturers support this mode service 1 VIN The VIN selection allows you to electronically read the Vehicle Identification Number that is stored in the vehicles ECU The VIN is the number used to uniquely identify a vehicle 8 Information 1D4HD58D 14F11414H 1 read VIN electronically do following 1 Select Information from the OBD II FUNCTIONS menu 2 Select VIN from the INFORMATION menu 3 Press to exit 2 CALIBRATION ID The S W Calibration ID selection is used for identification of the software calibration contained within the vehicle ECU Each software calibration ID uniquely identifies the software installed in the ECU Multiple calibration IDs may be reported for a ECU depending on software architecture A calibration ID number has at least one unique software verification number 8 Information ECU Sacks 56429639AF 2 Calibration ID ECU S 7E9 56HZ9H91AE CENTER MTS 3100 Mastertech Global
17. HELP SCREENS The MTS 3100 tester s keypad contains a key During most acd M operating modes services pressing 195 causes the tester to display a list of all active keys for mode service along with a brief summary of iced dour the function each key performs This is referred to as KEY HELP In parameter to next many cases additional information describing the operation of the mode previous parameter Se service is displayed with the KEY HELP The and prompts are Change marked d h hie HELP infi i parameter to next used to page through the information previous parameter not currently being displayed amp nextzpreuious 473 TYPICAL KEY HELP SCREEN Pressing 346413859 while a menu is being displayed brings up MENU DED 11 SHAPSHOT HELP HELP providing brief description of the highlighted menu item This function allows you to store any c all of the BD II parameters cer several seconds for later review Once the snapshot node is initisted Lhe selected parameter data iz saved in memory while Waiting for the trigger condition the trigger occurs the data Will continue to be savec up to total of 150 samples MTS 3100 Mastertech Global OBD Il Application Page 10 Using The Global OBD Il Application OBD II Parameter Help OBD II PARAMETER HELP In many modes services pressing 6 34 34 simultaneously causes II PARAMETER HELP tester to
18. MTS 3100 asks you to select the ECU for which you wish to display the diagnostic information Refer to Chapter 4 MTS 3100 Mastertech Global OBD Il Application Page 12 Basic OBD II Functions 1 Data List 1 Data List Select ECU 1 DATA LIST 2 CUSTOM LIST 1 All Data 3 LED LIST 4 2 User List 5 LINE GRAPH User Select List For vehicles with multiple ECUs only To view the current state of diagnostic data parameters do the following 1 Select Data List from the OBD II FUNCTIONS menu 2 Select the ECU from which you choose to monitor data for vehicles with multiple ECUs only 3 Select Data or User List from the PARAMETER SELECTION menu The message Waiting for data Please wait appears 4a If Data is selected all data parameters available for the selected vehicle are displayed Ab If User List is selected a User Select List is displayed How to create a list of selected parameters is explained in 2 CUSTOM LIST on page 15 PARAMETER SELECTION 1 ALL DATA Selecting All Data monitors all information available from the ECU The update rate for a data list is directly affected by the number of PIDs requested Larger data lists have a slower update rate For CAN protocol vehicles the Global OBD II software utilizes the protocol s ability to support multiple PID updates with a single request This provides the maximum update rate 2 USER
19. OR POOR VEHICLE PERFORMANCE NOR SHALL IT BE LIABLE FOR OPERATOR INJURY IN THE EVENT OF ELECTRICAL SHOCK DUE TO CARLESSNESS OR INCORRECT USE OF THESE PRODUCTS NO ORAL OR WRITTEN INFORMATION OR ADVICE GIVEN BY BOSCH ITS DEALERS DISTRIBUTORS AGENTS AFFILIATES DEVELOPERS DIRECTORS OFFICERS OR EMPLOYEES SHALL CREATE A WARRANTY OR IN ANY WAY INCREASE THE SCOPE OF THIS WARRANTY 6 Copyright Notice THE SOFTWARE AND DOCUMENTATION ARE COPYRIGHTED WITH ALL RIGHTS RESERVED BY BOSCH UNDER UNITED STATES COPYRIGHT LAWS THE SOFTWARE AND ITS ACCOMPANYING DOCUMENTATION MAY NOT BE COPIED IN WHOLE OR IN PART EXCEPT IN THE NORMAL USE OF THE SOFTWARE OR TO MAKE A BACKUP COPY FOR ARCHIVAL PURPOSE ONLY ANY OTHER COPYING SELLING OR OTHERWISE DISTRIBUTING THIS SOFTWARE OR MANUAL IS HEREBY EXPRESSLY FORBIDDEN YOU ACKNOWLEDGE THAT YOU HAVE READ THIS AGREEMENT UNDERSTAND IT AND AGREE TO BE BOUND BY ITS TERMS AND CONDITIONS YOU FURTHER AGREE THAT IT IS THE COMPLETE AND EXCLUSIVE STATEMENT OF THE AGREEMENT BETWEEN US AND THAT IT SUPERSEDES ANY PROPOSAL OR PRIOR AGREEMENT ORAL OR WRITTEN AND ANY OTHER COMMUNICATIONS BETWEEN US RELATING TO THE SUBJECT MATTER OF THIS AGREEMENT Robert Bosch LLC 2040 Alameda Padre Serra Suite 220 Santa Barbara CA 93103 800 321 4889 805 966 2000 Fax 805 965 9540 Copyright O Robert Bosch LLC 2009 Page iv License Agreement and Warranty Some Things You Should Know WARNING Exhaust Gas When performing an
20. applicable to OBD II A European document defining a class of communications between vehicle ECUs and off board test equipment ISO 9141 provides the basis for a large number of different communications protocols Most of these protocols are specific to various equipment or vehicle manufacturers The title of this document is Road Vehicles Diagnostic Systems Requirements for Interchange of Digital Information A European document defining an ISO 9141 protocol to be used for support of CARB OBD diagnostics The title of this document is Road Vehicles Diagnostic Systems Part 2 CARB Requirements for Interchange of Digital Information New European communication protocol ISO 14230 4 using same UART data encoding as the ISO 9141 2 protocol Controller Area Network CAN uses a 2 wire 5 volt bus communicating at the specified baud rate for each of the unique CAN protocols A MTS 3100 function accessed by pressing the key Key Help defines functions which each of the keys perform for all MTS 3100 operating modes services Long Term Long Term Fuel Trim for Bank 1 Long Term Secondary O2 Fuel Trim Level Air Flow Rate from Mass Air Flow MAF Sensor The Unit Conversion function can be used to switch between gm sec and Ib min MTS 3100 Mastertech Global OBD II Application Page 81 Glossary of Terms Acronyms and Abbreviations MAP P MIL MOD MST MT N A N D NNTE NTE 025 025 BI SI OBD OBDI
21. are currently in the fuel tank FUEL STAT 1 FUEL STAT 2 STATES OL CL OLDRIVE OLFAULT CLFAULT RSRVD UNUSED Fuel Status represents fuel control status of the feedback loop between the vehicle ECU and the oxygen sensor Fuel Status can be displayed for both Bank 1 and Bank 2 If only Bank 1 is used for fuel control Fuel Stat 2 15 displayed as UNUSED The states of Fuel Status can be Open Loop OL Closed Loop CL Open Loop due to vehicle being driven at wide open throttle or coasting OLDRIVE Open Loop due to a fault with the OBD II system OLFAULT Closed Loop with only one oxygen sensor being used for fuel control and a fault with at least one oxygen sensor CLFAULT or a display of a reserved status RSRVD which is used for future support FUEL RAIL TEMPERATURE A FUEL RAIL TEMPERATURE B UNITS RANGE 4010 215 FRT A and FRT B display the fuel rail temperature IF two sensors are used both FRT A and FRT B are displayed and represent the actual sensor value from each sensor GLOW PLUG LAMP STATUS STATES Glow Plug Lamp Status GLP STAT indicates whether the glow plugs are on Wait To Start lamp 1s illuminated or off MTS 3100 Mastertech Global OBD II Application Page 57 Diagnostic Data Parameters HYBRID BATTERY PACK REMAINING LIFE UNITS RANGE BAT PWR displays the estimated percent of charge available in the hybrid battery pack IAT 181 IAT 152 IAT 153 IAT B2S1 IAT B2S2 IAT B2S3 UNITS RANGE F 4
22. by any scan tool command OBD CERT STATES EURO IV B1 EURO V B2 EURO C On Board Diagnostics OBD Certification displays the level of OBD to which the vehicle ECU is certified The states of OBD certification can be to OBD II California Air Resources Board requirements OBD MTS 3100 Mastertech Global OBD II Application Page 60 Diagnostic Data Parameters federal requirements OBD and OBD requirements OBD I requirements or no OBD requirements This information can be helpful when determining certification and ordering parts OL EQ RATIO UNITS RANGE n a 0 000 to 1 999 Commanded OL Equivalence Ratio represents the ratio of actual AFR to stoichiometric 14 7 1 AFR and is calculated by the ECU On powertrain systems that use 0 1v O2S the commanded open loop equivalence ratio is displayed when the fuel system is in open loop when in closed loop the value should be 1 0 On powertrain systems that use wide range 0 8v O2S the commanded open loop equivalence ratio is displayed when the fuel system 1s in open or closed loop This ratio is sometimes referred to as Lambda where values above 1 are considered lean and values below 1 are considered rich Note that as automotive electronic systems become more sophisticated open loop fuel control will become a task of the ECU O2S B1 51025 B2 51 O2S B1 S202S B2 52 O2S B1 53025 B2 S3 O2S B1 54025 B2 54 UNITS RANGE 010 1 25 Oxygen Sensor O2S Bx Sx 15 the output voltage of the O2S that
23. de 44 quER PR E Edu s Tm 44 MULTIPLE ECU STATUS INFORMATION _ 46 DIA DATA PARKAMETERKS ote Vibes ac Ros PER 47 OR PR EP OBO qu diet Ye Pr sta d dr det dd rcd oder tete 68 RACE OGEI c m 68 MTS 3100 Mastertech Global OBD II Application TOC i a a a 0 ad td do toto ont 69 OBD II COMMUNICATION PROTOCOLS 70 a 9d d 49 5 Edd dt SR IN AUI SP 71 OBD II OXYGEN SENSOR LOCATION INFORMATION 72 IF YOU ARE HAVING A PROBLEM 1 74 UNABLE TO ESTABLISH COMMUNICATIONS WITH THE VEHICLE 74 LOSS OF COMMUNICATION WITH THE VEHICLE 75 COMMUNICATION ERRORS 76 PARAMETER UPDATE IS SLOW 76 NOT ALL PARAMETERS ARE DISPLAYED 1 TT TESTER DISPLAYS NO PARAMETERS TO DISPLAY MESSAGE 77 OBD I INTERFACE 5ELF IEST 122223583 bbe hs dex Yd 4 REA Fides 77 D GLOSSARY OF TERMS ACRONYMS AND ABBREVIATIONS 79 MTS 3100 Mastertech Global OBD II Application TOC ii 1 INTRODUCTION This document provides a basic description of the Global OBD II Application for the MTS 3100 tester This software is part of the ScanTest function of the MTS 3100 s Multi F
24. display OBD PARAMETER HELP screen The OBD II PARAMETER PARAMETER HELP screen displays such information as an expanded Engine description of the highlighted parameter the minimum and maximum value of the parameter for the test cycle the ECUs which monitor the ID 129 parameter or the which is reporting current value displayed SUPPORTING ECU S h AFES tne screen REPORTING ECU HrES CECH Min Val 512 Max Mal 1892RPM 614RPM TYPICAL PARAMETER HELP SCREEN MTS 3100 Mastertech Global OBD II Application Page 11 3 BASIC OBD Il FUNCTIONS OBD II FUNCTIONS MENU This menu allows you to perform basic OBD II testing on the vehicle You can select the desired function by pressing the key indicated to the left of the function Alternatively you can select the function by pressing the cursor keys and until the desired function is highlighted and then pressing ENTER Monitoring Tests Ifthe vehicle you are testing contains more than one OBD II ECU the MTS 5 OED Evaluations 3100 displays a list of all ECUs which have responded during the Information initialization process Refer to Chapter 4 Unit Conversion Snapshot OBD Controls 1 DATA LIST The DATA LIST mode service allows you to view the current state of diagnostic data parameters as reported by the vehicle s ECU s Ifthe vehicle you are testing contains more than one OBD II ECU the
25. key in a Data Display mode service e g Data List or OBD EVALUATIONS causes the tester to print a list of data appropriate to the mode service a list of diagnostic data parameters or OBD Evaluations Status Pressing and EE keys simultaneously causes an image of the MTS 3100 s screen to be printed referred to as Screen Print For information on the VP414 serial printer contact your sales representative MTS 3100 Mastertech Global OBD II Application Page 5 Introduction Operator s Manual Description OPERATOR S MANUAL DESCRIPTION Chapter 2 of this manual provides some general information about the operation of this software Chapter 3 describes the basic functions of the software while Chapter 4 discusses the operation of the MTS 3100 when the vehicle contains more than one OBD II controller Chapter 5 provides a discussion of the diagnostic data parameters Appendix A provides a brief overview of OBD II including the documents operating modes services and vehicle communication protocols Appendix B provides a discussion of oxygen sensor locations for most types of vehicles Appendix C tells you what to do if you think something is not operating properly Appendix D contains a glossary of terms acronyms and abbreviations which are applicable to OBD II diagnosis and or the operation of this Global OBD II Software MTS 3100 Mastertech Global OBD II Application Page 6 2 USING THE GLOBAL II APPLICATION
26. message is displayed on the MTS 3100 screen See Figure 1 Test Conditions Hat Correct Table C 1 shows a list of error codes that are supported and the applicable Retry Test text string Error Code 522 ERROR CODE HEX VALUE 10 Test Rejected By Vehicle ECU FIGURE C 1 Sample Communication Error 11 Test Mode Service is Not Supported Screen Error Code 22 12 Test Mode Service is Not Supported 21 Test Conditions Not Correct Retry Test 22 Test Conditions Not Correct Retry Test 23 Test Conditions Not Correct Retry Test 78 ECU Received Message Action Not Complete TABLE C 1 Global OBD II Error Code Messages DISPLAY TEXT STRING PARAMETER UPDATE RATE IS SLOW Possible Cause e A slow update rate is characteristic of OBD communications A typical update rate is approximately 125 to 150 ms per parameter 7 or 8 updates per second for a single parameter Therefore a typical list of 20 parameters is only updated approximately every 3 seconds Recommendations e Ifa faster update rate is needed select fewer parameters using the User List function Select only the parameters needed for a test For example you can look at just an oxygen sensor signal and get an update of 7 or 8 times a second e You can also change the time scale in the Line Graph display mode service to save the data less frequently If you set the time scale to 300 seconds the MTS 3100 saves the data every 2 seconds Thi
27. on the SELECT MONITOR menu 4 Select the parameter MTS 3100 Mastertech Global OBD II Application Page 35 Basic OBD II Functions 5 Monitoring Tests Following the test run the data results are displayed 5 Press 6 3 3859 to see OBD II parameter help information including the minimum maximum current values for the selected parameter If the ECU only reports a minimum or maximum programmed test limit the MTS 3100 displays N A for the limit that is not reported II PARAMETER HELP PARAMETER NAME Rich to Lean Sensor Threshold Voltage ID Exh Gas 5nsr Bi Si ID 81 cig SUPPORTIHG ECL 5 FAFES 1 6 354355520U 566566702 6 3539226 ACTIVE KEYS omesse NN MTS 3100 Mastertech Global OBD II Application Page 36 Basic II Functions 6 OBD Evaluations 6 OBD EVALUATIONS The OBD Evaluations mode service allows you to display the status of the vehicle s on board monitors which monitor the operation of the emissions related components These monitors must run in order for the DTC and test result displays to accurately reflect the condition of the vehicle s emission related components The monitor status may change with an ignition key cycle This mode service displays data for the on board OBD monitors All monitors for subsystems and components are listed as Supported SUP Ready RDY Enabled ENA and Complete CMPL and Status for each monitor
28. position learned closed throttle position and is calculated by the ECU based on the TPS input voltage Therefore this indicates how much the pedal is off its stop and not in relation to a zero voltage level from the TPS Because of closed throttle offset most TPS read roughly 1v when the throttle plate is closed when the throttle is at wide open position the reading may be less than 100 TP A REL and TP B REL are used if the engine has more then one throttle body SHORT TERM SECONDARY O2 SENSOR FUEL TRIM BANK 1 SHORT TERM SECONDARY O2 SENSOR FUEL TRIM BANK 2 SHORT TERM SECONDARY O2 SENSOR FUEL TRIM BANK 3 MTS 3100 Mastertech Global OBD II Application Page 62 Diagnostic Data Parameters SHORT TERM SECONDARY 02 SENSOR FUEL TRIM BANK 4 UNITS RANGE 100 to 99 22 Short Term Secondary O2 Sensor Fuel Trim Banks 1 2 3 and 4 STSO2FT1 STSO2FT2 STSO2FT3 STSO2FT4 indicate the correction being utilized by the closed loop fuel algorithm If the fuel system is in open loop 0 correction is reported ST FT 1 STFT2 RANGE 100 to 100 Short Term Fuel Trim ST FT 15 the measure of adaptive or feedback fuel correction strategy for the injection of fuel into the engine Short Term Fuel Trim represents the ECU s dynamic short term adjustment to fuel strategy determined from a look up table in its memory This parameter is continually changing over time at a rate faster than Long Term Fuel Trim and varies wi
29. than one tester This agreement covers one licensed copy of the software If you transfer possession of any copy modification or merged portion of the program to another party your license is automatically terminated 3 Termination This License is effective until terminated This License will terminate immediately without notice from Bosch if you fail to comply with any provision of this License Upon termination you must destroy the Software and all copies thereof You may terminate the License by destroying the Software and all copies thereof 4 Export Law Assurance You agree that the Software will not be shipped transferred or exported directly into any country prohibited by the United States Export Administration Act and the regulations thereunder nor will be used for any purpose prohibited by the Act 5 Limited Warranty Disclaimers Limitation of Remedies and Damages BOSCH WARRANTY ON THE MEDIA INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE IS LIMITED IN DURATION TO NINETY 90 DAYS FROM THE DATE OF ORIGINAL RETAIL PURCHASE OF THIS PRODUCT BOSCH WILL AT ITS SOLE ELECTION EITHER REPAIR OR REPLACE ANY UNIT WHICH IS DEEMED DEFECTIVE DURING THE WARRANTY PERIOD BOSCH MAKES NO OTHER WARRANTIES OR REPRESENTATION EITHER EXPESSED OR IMPLIED WITH RESPECT TO THIS SOFTWARE OR DOCUMENTATION ITS QUALITY MERCHANTABILITY PERFORMANCE OR FITNESS FOR A PARTICULAR PURPOSE AS A RESULT THIS SOFTWA
30. the status of the on board diagnostic tests The title of this document is Recommended Practice for Diagnostic Trouble Code Definitions SAE Recommended Practice defining possible methods for vehicle manufacturers to implement enhancements to OBD II SAE J2190 implementations are specific to the various manufacturers and are often referred to as Enhanced OBD II The title of this document is Enhanced E E Diagnostic Test Modes SAE Recommended Practice defining a method of expanding an OBD II Scan Tool to support manufacturer specific test modes services The title of this document is Expanded Diagnostic Protocol for OBD II Scan Tools The Snapshot mode service is used to capture data over a period of time It can be used to support road testing as well as testing in the service bay Speed Short Term Short Term Fuel Trim for Bank 1 Status Short Term Secondary O2 Sensor Fuel Trim Tech 1 1A Throttle Actuator Control Turbocharger Top Dead Center Test Identifier The TID is used by the O2S Test Results mode service and by the Non Continuous On Board Test Results mode service to identify manufacturer specific tests The service manual for the vehicle under test should be used to interpret the TID Turbine Inlet Temperature Temperature Turbine Outlet Temperature MTS 3100 Mastertech Global OBD II Application Page 84 Glossary of Terms Acronyms and Abbreviations TP TPS TQ Trip UART VGT VIN VP VPA VPW W
31. to the catalytic converter For in line engines and V configuration engines with Wye exhaust systems and one O2S ahead of the catalytic converter O2S 1 is the upstream sensor and O2S 2 is the downstream sensor This results in the naming convention bank location Examples are O2S B1 51 BANK 1 UPSTREAM O2S B1 52 BANK 1 DOWNSTREAM al i BEER 02 Sensor 11 sensor 11 Sensor Y 02 Sormor 1 2 MTS 3100 Mastertech Global OBD Il Application Page 72 OBD II Oxygen Sensor Location Information For V configuration engines with dual exhaust systems there may be a separate upstream and downstream O2S for each bank This results in the following naming convention O2S B1 51 BANK 1 UPSTREAM O2S B1 52 BANK 1 DOWNSTREAM O2S B2 51 BANK 2 UPSTREAM O2S B2 S2 BANK 2 DOWNSTREAM 02 Sons 2 7 Sensor sensor 1 2 n n 012 Gorgon 2 2 On some V configuration engines with 2 upstream 025 there may O2S 3 O28 3 15 downstream O2S after the catalytic converter This configuration may have a third O2S ahead of the catalytic converter and results in the following naming convention O2S B1 51 BANK 1 UPSTREAM O2S B1 S2 BANK 1 UPSTREAM O2S B2 51 BANK 2 UPSTREAM O2S B1 53 BANK 1 DOWNSTREAM Ce Sensor 11 Sensor 2 02 Sensor 12 Cj 02 Sensor 153 Together these conventions are all used to identify the O2S that may be causing a DTC or producing a faulty signal
32. typically 40 kPa at idle warm engine at sea level Note that the P in parenthesis indicates the parameter is pressure related MIL STATUS STATES OFF ON Malfunction Indicator Lamp MIL Status is an indication of the current MIL state If no emission related faults exist the MIL is OFF If a DTC is stored in the ECU due to a system fault or the vehicle is operated in a condition that causes tailpipe emissions to exceed 1 5 times the allowed value for that vehicle the MIL is ON In most cases 1f a hard fault exists the MIL remains illuminated Also the MIL can illuminate then extinguish while driving the vehicle which means the vehicle exceeded tailpipe emission standards NOX SENSOR CONCENTRATION BANK 1 SENSOR 1 NOX SENSOR CONCENTRATION BANK 2 SENSOR 1 UNITS RANGE RPM 0 to 65535 NOX BIS and B2S1 display the NOX in parts per million present in the exhaust NOX WARNING INDICATOR TIME RANGE 0 to 4 294 967 295 Warning Indicator Time displays run time run by engine with the warning indicator The following conditions are followed reset to when warning indicator state changes from deactivated to activated accumulate counts in seconds if warning indicator 15 activated ON donotchange value while warning indicator is not activated OFF e reset to 00 if warning indicator has not been activated for 400 days or 9600 hours of engine operation counter is not be erasable
33. 0 TQ DD displays the engine torque output requested by the driver It can be based on the requests by the operator via the accelerator pedal the cruise control system and or the road speed limit governor ECT ECT 1 ECT 2 UNITS 4010 419 4010 215 Engine Coolant Temperature 15 an analog input to the ECU This parameter provides a temperature indication of engine coolant near the ECT sensor ECT sensors can be located in the intake manifold cylinder head or water pump housing Typical ECT is 200 F warm engine at idle Note that in parenthesis indicates the parameter is temperature related Engines that utilize two ECT sensors use ECT 1 and ECT 2 to indicate the actual sensor values from each sensor MTS 3100 Mastertech Global OBD II Application Page 53 Diagnostic Data Parameters EGR ERROR A ERROR EGR B ERROR UNITS RANGE 100 0 to 99 2 Exhaust Gas Recirculation error represents the difference between Actual and Commanded EGR divided by Commanded and is an output from ECU On certain engines commanded 15 measured in percent duty cycle while the EGR position sensor reads the valve pintle position in voltage Determining an actual comparison between commanded and actual may be difficult since the engineering units are different duty cycle vs voltage Thus Commanded EGR Error represents a normalized value regardless of engineering units For ex
34. 0 to 419 C 40 to 215 Intake Air Temperature is an analog input to the ECU This parameter provides a temperature indication of engine intake air temperature as it flows across the IAT sensor IAT sensors can be located in the intake manifold intake air plumbing or airbox Typical IAT is 140 F warm engine at idle If more then one sensor is present the actual value of each sensor is displayed with its bank and sensor location indicated IGN TIMING UNITS RANGE 64 to 64 Spark Advance IGN Timing is the amount of ignition electronic spark advance that the ECU is currently commanding The amount of ignition spark advance is based on several inputs to the ECU engine load throttle angle engine temperature etc and a lookup table in the ECU s memory For OBD II systems Spark Advance should be the timing advance for cylinder number 1 and does not include mechanical advance if applicable Spark Advance increases with engine RPM and a typical value is 10 20 degrees at idle warm engine INJECTION CONTROL PRESSURE A INJECTION CONTROL PRESSURE B kPa 0 to 655350 ICP A and ICP B indicate the Injection control pressure INSIDE MANUFACTURER SPECIFIC NOX NTE CARVE OUT AREA STATES YES NO NNTE indicates that engine is designed to operate inside a NOx NTE carve out area INSIDE MANUFACTURER SPECIFIC PM NTE CARVE OUT AREA STATES YES NO PNTE indicates that the engine is designed to be operate
35. 1 Basic II Functions 8 Information To select In Use Tracking do the following 1 Select Information from OBD II FUNCTIONS menu 2 Select In Use Tracking from the INFORMATION menu 3 Press to return to the INFORMATION menu 5 ECU NAME This data supports the ECUs acronym and text description retrieved ECU NAME from the reporting ECU The format consists of 4 characters for the Reporting ECU acronym and 15 characters for the text description If there 15 more than SA7ES one ECU ECUs are numbered sequentially in ascending order ECH1 Mame Eng ineControl MTS 3100 Mastertech Global OBD II Application Page 42 Basic OBD II Functions 9 Unit Conversion UNIT CONVERS ION page 1 VEHICLE SPEED kmh TEMPERATURE F PRESSURE inHg FUEL PRESSURE ps 1 UNIT COMUERSIOM page 2 AIR FLOW lb nin 9 UNIT CONVERSION The Unit Conversion function allows you to select the units you want to use to display the parameters You can display Vehicle speed in MPH or km h Temperatures in C or F Pressures in mmHg kPa or inHg Air flow in gm sec or Ib min Fuel pressure in kPa or Psi Angle in or 9o When Unit Conversion 15 selected the MTS 3100 displays a UNIT CONVERSION screen which highlights the units that are currently being used To change units use the 63 C and keys to select the desired units The conversion being selecte
36. 100 Mastertech Global OBD II Application Page 34 Basic OBD II Functions 5 Monitoring Tests MONITOR TESTS MENU MONITOR TESTS MENU Exh Gas Sensor CAT EGR 4 WUT NOx Adsorber NOx Catalyst 4 Misfire Exh Gas Snsr Htr Heated CAT secondary Air Fuel System More Monitors PM Filter OEM OBDM IDs Not all vehicle manufacturers support each of these test modes services For ISO 15765 4 CAN protocol vehicles ECUs have identified test results to be displayed as Monitor IDs MID and Test IDs TID These results are retained by the ECU until they are replaced with more recent test results Not all MIDs are supported by all systems This section applies only to CAN vehicles For non CAN vehicles see A Non CAN Vehicles on page 31 EXAMPLE OXYGEN SENSOR MONITORING TEST RESULTS CAN This section describes the Oxygen Sensor monitor test as an example of CAN system tests The procedure for accessing test results for the other CAN tests is the same 5 Monitoring Tests 1 Exh Gas Sensor 1 Select ECU 025 Bn Sn To select Exhaust Gas Sensor Test Results do the following 1 On OBD II FUNCTIONS menu select Monitoring Tests The Monitor Test Menu displays the CAN test options 2 Select Exh Gas Sensor for the Exhaust Gas Sensor Monitor Test Results 3 Select the appropriate ECU from the SELECT ECU menu for vehicles with multiple ECUs The relevant parameters appear
37. 2S B2 51 FT O2S B1 52 025 B2 52 MTS 3100 Mastertech Global OBD II Application Page 56 Diagnostic Data Parameters FT O2S B1 S3FT O2S B2 S3 FT O2S B1 S4FT O2S B2 S4 UNITS RANGE 100 to 100 Fuel Trim Oxygen Sensor FT O2S Bx Sx represents the short term correction to fuel injection that may be adopted by the ECU In this case oxygen sensor fuel trim represents the ECU s determination of exhaust gas oxygen content and relates the data to a short term adjustment to fuel strategy based on information obtained from the applicable O2S Associated with the OBD II system and the parameter label are Bx and Sx Bx refers to Bank or 2 and Sx refers to the sensor in positions 1 2 3 or 4 Refer to Appendix OBD II Oxygen Sensor Location Information for a more complete description of the O2S naming convention FUEL INJECTION TIMING UNITS RANGE Degrees 210 00 to 301 992 FUEL TIMING DISPLAYS THE START OF THE MAIN FUEL INJECTION PULSE RELATIVE TO TOP DEAD CENTER TDC POSITIVE DEGREES INDICATE BEFORE TDC NEGATIVE DEGREES INDICATE AFTER TDC FUEL LEVEL UNITS RANGE Fuel Level Input FLI represents the measurement of current fuel tank capacity and is an input to the ECU The value is normalized to the tank sensor which results in 0 tank empty and 100 tank full The percentage can be applied to fuel tank capacity For example 1f tank capacity 15 24 gallons then a Fuel Level reading of 50 translates to 12 gallons that
38. Bx Sx represents the ratio of actual air fuel ratio to 14 7 1 for the particular bank x and sensor x and is calculated by the ECU This ratio is sometimes referred to as Lambda where values above 1 are considered lean and values below 1 are considered rich The parameter labels are Bx and Sx Bx refers to engine banks 1 2 3 or 4 and Sx refers to the sensor in positions 1 2 3 or 4 See Appendix B for a more complete description of the O2S naming convention EVAP PURGE UNITS RANGE Commanded Evaporative Purge EVAP represents the percentage of evaporative canister venting and 15 an output from the ECU Depending on evaporative canister purge control technology used the operation may be described as follows e On off solenoid commanded evap purge displays 0 when the evap purge is commanded OFF 100 when the evap purge system is commanded ON MTS 3100 Mastertech Global OBD II Application Page 55 Diagnostic Data Parameters e Vacuum solenoid commanded evap purge duty cycle range from 0 to 100 is displayed e Linear or stepper motor valve the fully closed position displays as 0 the fully open position displays as 100 with positions in between displayed as a percent of the fully open position EVAP SYSTEM VAPOR PRESSURE UNITS RANGE Pa 819201081917 3292103292 Evap System Vapor Pressure EVAP VP represents the vapor pressure that is present in the fuel tank measured by the fuel tank pre
39. CAN vehicles see B CAN Vehicles on page 34 1 Specific Results Non CAN The Specific Results function is similar to the O2 Sensor Test Results Some manufacturers use this mode service as an alternate for reporting O2 sensor test results In this mode service the vehicle s controller reports data for various Test IDs TIDs and Component IDs CIDs In addition to reporting data for these TIDs and CIDs the vehicle reports test limits minimum maximum or both for acceptable operation The MTS 3100 compares the data with the test limits and displays a PASS or FAIL indication for each TID and CID If the vehicle you are testing contains more than one OBD II ECU the MTS 3100 asks you to select the ECU for which you wish to display the diagnostic information Refer to Chapter 4 5 System Tests 1 Specific Results For vehicles with multiple ECUS only To view results from other tests do the following 1 Select Monitoring Tests from OBD II FUNCTIONS menu 2 Select Specific Results from the MONITOR TESTS menu 3 Select the ECU from which you choose to monitor data for vehicles with multiple ECUs only The message Waiting for data Please wait 15 displayed followed by the test result information MTS 3100 Mastertech Global OBD Il Application Page 31 Basic OBD II Functions 5 Monitoring Tests ACTIVE KEYS e mee 0 2 Oxygen Sensor Results Non CAN The Oxygen Sensor O2
40. LIST If you select the User List mode service the MTS 3100 displays a list of parameters from which to select The User List mode service allows you to select any combination of parameters to monitor from 1 parameter to all parameters A single parameter can be sampled as fast as 8 times per second MTS 3100 Mastertech Global OBD II Application Page 13 Basic OBD II Functions 1 Data List Parameters are selected by scrolling through the list using the and keys and then pressing and to select and deselect the highlighted parameter USER SELECT LIST TES ENGIME SPD ES When the parameters have been selected press 19 9 to go to the YES MAP P display mode service The MTS 3100 remembers the selected FUEL STAT 1 parameters until the tester 1s turned off so you won t have to re select FUEL STAT 2 them every time T FT i LT FT 1 YES O25 Bl 51 MULTIPLE ECUS Ifthe vehicle supports multiple ECUS a status character to the left of the diagnostic data parameter indicates the status of the parameter data Refer to Chapter 5 for a detailed description of the tolerances for the different parameters CHARACTER om Indicates multiple controllers are reporting approximately the same value for the parameter Indicates multiple controllers are reporting different values for the parameter DISPLAY FORMATS In the DATA LIST mode service the data can be displayed in several display formats Al
41. MTS 3100 Mastertech Global OBD II Application Operator s Manual i Invented for life Robert Bosch LLC Copyright 2009 P N 08002895 Rev E Mastertech 5 a registered trademark of Robert Bosch LLC Printed in USA 03 09 This entire document and all information contained herein are proprietary confidential and exclusive trade secret property of Robert Bosch LLC and shall not be reproduced duplicated or copied in whole or in part or made available to any person firm or corporation without the prior written permission of Bosch License Agreement and Warranty LICENSE AGREEMENT AND WARRANTY PLEASE READ THIS DOCUMENT CAREFULLY BEFORE ACCEPTING THE LICENSE AGREEMENT TERMS This software is licensed not sold to you by Robert Bosch LLC Bosch owner of the product for use only under the terms of this License and Bosch reserves any right not expressly granted to you Bosch provides this program and licenses its use worldwide You assume sole responsibility for achieving your intended results and for the installation and use of the program 1 License This License allows you to install and use the Software on a handheld tester 2 Restrictions You may not use copy modify or transfer the program including all associated materials and documentation or any copy modification or merged portion in whole or in part except as expressly provided for in this license You may not download software into more
42. OBD II Application Page 40 Basic Functions 8 Information To select the Calibration ID do the following 1 Select Information from the OBD II FUNCTIONS menu 2 Select Calibration ID from the INFORMATION menu 3 Press to exit 3 CALIBRATION VERIFICATION NUMBER The Calibration Verification Number CVN is used for determining whether emission related calibrations within the ECU software have been altered Calibration Verification Numbers are calculated based on memory content at the time of the request Any changes to calibration are detected Since the calculation may require significant time it 15 recommended that the engine 15 off during this request 8 Information CUN CU 07 HCM TCM BFD7BB56 3 Cal Verification CU SH7E8 ECM EB56HHZZ ENTER 1 To select the CAL Verification do the following 1 Select 6 Information from OBD II FUNCTIONS menu 2 Select 6 Cal Verification from the INFORMATION menu 3 Press to exit 4 IN USE TRACKING The In Use Tracking selection allows you to view the number of times counts when all conditions for a specific monitor to detect a malformation have been encountered the vehicle has been operated in the specified condition for each monitored component or subsystem 8 Information 4 In Use Tracking Comp Cond Comp Cond Completions Conditions Completions Conditions MTS 3100 Mastertech Global OBD II Application Page 4
43. ON phase Data List or User List Select fewer parameters to increase data rate ACTIVE KEYS CO CES CE CS NO H 146 CT CS o emp ES MTS 3100 Mastertech Global OBD II Application Page 16 Basic OBD II Functions 1 Data List CHANGING THE CHARACTER DISPLAY SIZE ECT VEHICLE amp SPD 64HPH ENGINE LOnb 12 5 MAP P 19 91mHy TPS uu 21 9 FUEL PREZ 34 Bpsigy FUEL STAT 2 SD BUE de LT de ELI ER UEHICLE amp PD EHSIHE LOAL GP uei ere ms r FRES FLEL STAT ij EL FIEL TAT 2 ST FT 1 amp 27 LT FT ST FT LT FT 025 Bl 51 FT 025 Hl 51 ds 025 Bl 52 In any of the display formats you can press key to change the size of the font which 15 used to display the parameters For all of the display formats except Line Graph this increases the number of parameters which are displayed For example using the small font in the Data List mode service increases the number of parameters from 12 to 16 Pressing a second time returns the display to the larger font ADDITIONAL DATA LIST INFORMATION OBC II PARAMETER HELP PARAMETER MAME Engine RPM ID 0 1292 SUPPORTING 5 REPORTING ECU 7 E8 Min
44. ONS menu 2 Select Confirmed DTCs from the DTC menu 3 Select the ECU from which you choose to monitor data for vehicles with multiple ECUs only The message Receiving DTCs Please wait appears The total number of DTCs DTC number definition and reporting ECU are displayed 4 If an precedes DTC number press 19 9 to view Freeze Frame Data Generally only two codes can be displayed at one time If more than two DTCs are reported by the controller the tester displays a prompt next to Number of Codes indicating that more codes are present but are not displayed Use the and keys to sequence through the list of codes Usually an precedes the code number for one of DTCs indicating that Freeze Frame Data is available for that DTC When that DTC is highlighted a prompt is displayed on the bottom line indicating that you can go directly to the Freeze Frame Display mode service by pressing GMA This performs exactly the same function as selecting Freeze Data from the OBD II FUNCTIONS menu but saves you a few key presses MTS 3100 Mastertech Global OBD Il Application Page 18 Basic OBD II Functions 2 Diagnostic Trouble Codes DTCs ACTIVE KEYS Move to another DTC 2 PENDING DTCS For Pending DTCs the vehicle s controller performs analysis similar to that used to determine if the equivalent DTC is present but with less stringent requirements For example a DTC may requi
45. RE IS SOLD WITH THE LIMITED WARRANTY AS PROVIDED ABOVE AND YOU THE LICENSEE ARE ASSUMING ALL OTHER RISKS AS TO ITS QUALITY AND PERFORMANCE IN NO EVENT WILL BOSCH OR ITS DEVELOPERS DIRECTORS OFFICERS EMPLOYEES OR AFFILIATES BE LIABLE FOR DIRECT INCIDENTAL INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES INCLUDING DAMAGES FOR LOSS OF BUSINESS PROFITS BUSINESS INTERRUPTION LOSS OF BUSINESS INFORMATION AND THE LIKE RESULTING FROM ANY DEFECT IN THIS SOFTWARE OR ITS DOCUMENTATION OR ARISING OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE OR ACCOMPANYING DOCUMENTATION EVEN IF BOSCH AN AUTHORIZED BOSCH REPRESENTATIVE OR A BOSCH AFFILIATE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE BOSCH SHALL NOT BE LIABLE FOR ANY DEFECTS IN THE EVENT THAT LICENSEE OR A THIRD PARTY MODIFIES THE LICENSED SOFTWARE NOTWITHSTANDING ANYTHING HEREIN TO THE CONTRARY BOSCH S LIABILITY HEREUNDER SHALL NOT EXCEED THE PURCHASE PRICE PAID BY LICENSEE FOR THE SOFTWARE Page iii License Agreement and Warranty LICENSED HEREUNDER THE REMEDIES SET FORTH IN THIS SECTION 5 REPRESENT LICENSEE S SOLE AND EXCLUSIVE REMEDIES FOR ANY BREACH OF WARRANTY BY BOSCH BOSCH MAKES NO REPRESENTATION OR WARRANTY REGARDING THE RESULTS OBTAINABLE THROUGH THE USE OF THE SOFTWARE NOR IS WARRANTY MADE IN THE EVENT OF DAMAGE TO AN ECU CAUSED BY INCORRECT CONFIGURATION FILES OR OTHER IMPROPER USER OPERATION FURTHERMORE BOSCH SHALL NOT BE HELD LIABLE FOR OPERATOR ERROR PC MALFUNCTION
46. S Monitoring Test Results mode service allows the MTS 3100 to display the results of the oxygen sensor testing performed by the vehicle s engine controller These tests are once per trip tests performed after the ignition is turned on and the vehicle is operated under conditions defined by the manufacturer The O2S Test Results mode service is not available for all vehicles Some vehicles use the Specific Results version of the system tests mode service to report results of O2S testing 5 Monitoring Tests BL O22 U B 45BU L R 028 U 8 45BU 2 028 Results LOW SW 9 2900 HIGH SW U 8 BBBU ReL SM TIM 8 H48s SU 8 1325 Lo MIN 025 VU H HBHU O26 VU 8 9564 025 TRANS T H 35s TID MT n user selected x vehicle dependent To select O2S Test Results do the following 1 Select Monitoring Tests from OBD II FUNCTIONS menu 2 Select O2S RESULTS from System Tests menu 3 Select desired oxygen sensor from O2 Sensor Test menu The message Initializing vehicle systems Please wait is displayed followed by the message Waiting for data Please wait The data from the selected oxygen sensor 15 then displayed MTS 3100 Mastertech Global OBD II Application Page 32 Basic Functions 5 Monitoring Tests 025 TEST RESULTS Oxygen sensor tests have not completed on this vehicle the test results may be inaccurate Do you wish to cont inue
47. TURN IGHITIOM KEY information If not refer to the factory service manual or Technical OM LEAVING THE Service Bulletin information ENGINE OFF PRESS CENTER ACTIVE KEYS Clear DTCs Freeze Data and OBD Evaluations results Return to OBD II FUNCTIONS menu HELP Display active keys and information about test mode service operation MTS 3100 Mastertech Global OBD II Application Page 24 Basic OBD II Functions 3 Snapshot 3 SNAPSHOT The Snapshot mode service helps you isolate an intermittent or transient problem by storing data parameters before or after the problem occurs The information can be saved and used for a later replay or hardcopy print option If the vehicle you are testing contains more than one OBD II ECU the MTS 3100 asks you to select the ECU for which you wish to display the diagnostic information Refer to Chapter 4 3 Snapshot 1 Any DTC Trigger 2 Single DTC Trig 3 Manual Trigger Select ECU 1 All Data Wait Manual Trigger 208 a 2 User List L For vehicles with multiple ECUs only To select Snapshot do the following 1 Select 6 Snapshot from the OBD II FUNCTIONS menu 2 Select any of the displayed trigger types from the Snapshot menu 3 Select DTC Trigger Type Confirmed Pending Permanent Any 1f applicable 4 Select the ECU from which you choose to monitor data for vehicles with multiple ECUs only 5 Select Data or User List fr
48. The O2S naming conventions shown here are consistent with J1979 Please consult the appropriate service manual for more information on the vehicle that you are working on MTS 3100 Mastertech Global OBD II Application Page 73 C IF YOU ARE HAVING A PROBLEM This appendix describes some of the possible problems which you might run into when you try to use the MTS 3100 s Global OBD II software UNABLE TO ESTABLISH COMMUNICATIONS WITH THE VEHICLE The tester continues to cycle through the five different protocols until either it establishes communication with the vehicle or the power is turned off INITIALIZING THE OBD II IMTERFACE Possible Causes PLEASE WAIT Vehicle ignition switch 15 turned off Data link cable is not firmly seated into the SAE J1962 16 PIN DLC ATTEMPTING T SAE J1856 Vehicle is not OBD II compatible 41 6 Kbps Problem with the vehicle wiring to SAE J1962 DLC Pin 16 fuse is open circuit the MTS 3100 s green LED does not illuminate e Pin 4 and 5 wiring is incorrect the MTS 3100 s green LED does not illuminate e Pins 2 6 7 10 and or 14 wiring is damaged serial communication circuits Recommendations Make sure vehicle ignition switch is in the ON position e Disconnect and reconnect DLC making sure the connector is properly seated Check the under hood decal for OBD II verification MTS 3100 Mastertech Global OBD II Application Page 74
49. Val 312RPM Max Wali 1892RPM Cur Mal 614RPM MTS 3100 Mastertech Global OBD II Application Pressing and simultaneously provides additional information about the highlighted diagnostic data parameter This includes an expanded description of the parameter as well as the IDs for the responding ECU s and the test The current status of the diagnostic data parameter is displayed as reported by the ECU For most of the parameters this parameter help screen also displays the minimum and maximum values recorded during the use of this function Page 17 Basic OBD II Functions 2 Diagnostic Trouble Codes DTCs 2 DIAGNOSTIC TROUBLE CODES DTCS 1 CONFIRMED DTCS When you select the DTCs mode service the MTS 3100 reads all DTCs which have been saved by the vehicle s controllers and then displays A list of the DTCs and their descriptors The ID of the ECU reporting them How many codes have been reported If the vehicle you are testing contains more than one OBD II ECU the MTS 3100 asks you to select the ECU for which you wish to display the diagnostic information Refer to Chapter 4 CONF IRMED DTCz ECU SA7E8 ECM Number of DTCs 9 4 7A Camshaft Position Actuator Circuit Open Bank 1 1 Confirmed DTCs H Camshaft Position Actuator Circuit Open Bank 22 For vehicles with multiple ECUs only To read DTCs do the following 1 Select DTCs from the OBD II FUNCTI
50. a vehicle After selecting OBD II FUNCTIONS from the applicable screen the MTS 3100 attempts to communicate with the vehicle controller After the ignition key is turned ON communication initialization can take up to 40 seconds The tester cycles through attempting to communicate with the vehicle using the following list of protocols INITIALIZING THE INITIALIZING THE OBD II INTERFACE OBD II INTERFACE PLEASE WAIT ATTEMPTING 150 9141 2 16 4 Kbps PLEASE WAIT CONF IRMED 150 9141 2 1H 4 Kbps Display changes from Attempting to Confirmed The OBD II STATUS display appears when communication has been established but not all monitors have been completed Press 11959 to display the OBD II FUNCTIONS menu MTS 3100 Mastertech Global OBD II Application Page 8 Using The Global OBD Il Application Getting Started 1 Scantest OBD II STATUS OBD II FUNCTIONS 1 Data List 2 DTCs 1 Global OBD II Hot all of the OBD II System Readiness Tests 3 Snapshot have conpleted 1 OBD II Functions OBD Controls Monitoring Tests OBD Evaluations Information Unit Conversion this vehicle Some of the test results may be inaccurate Press CENTER Once communication with the vehicle has been established the OBD II FUNCTIONS menu is displayed OBD functions require communication with the vehicle ECU To select the OBD Functions menu do th
51. ample if 25 EGR is commanded and 20 is actually delivered to the engine the EGR error is 20 25 25 20 error If the engine has more then one EGR valve the error for each EGR valve is displayed using EGR A ERR and EGR B ERR ENGINE FUEL RATE UNITS RANGE L h 0 to 3276 5 FUEL RATE indicates the amount of fuel consumed by the engine in liters per hour FUEL RATE displays zero liters per hour when the engine is not running ENGINE OIL TEMPERATURE UNITS RANGE 40 to 215 EOT displays engine oil temperature The temperature may be a direct value obtained from a sensor may be estimated by the control module based on other sensor inputs ENGINE LOAD UNITS RANGE Engine Load LOAD PCT is derived by the ECU from a measure of current engine airflow divided by engine peak airflow Engine Load directly increases with throttle angle and drive conditions and is an indicator of percent engine capacity in any given operating mode Engine Load is typically 5 at engine idle and 80 or greater during Wide Open Throttle warm engine ENGINE PERCENT TORQUE DATA AT IDLE POINT 1 UNITS RANGE 125 to 130 TQ MAXI is the torque limit that indicates the available engine torque which can be provided by the engine at idle speed This parameter may be influenced by engine temperature after power up and other stationary changes calibration offsets sensor failures etc ENGINE PERCENT TORQUE DATA AT POINT 2 THROUGH
52. an use the arrow keys to highlight the selected ECU and press to get a specific message to the response for clearing the DTCs If the result of clearing DTCs is NO the negative response and the explanation are displayed when you highlight the ECU and press GMAB CLEAR DTC RESULT CLEAR DTC RESULTS ECU CLEARED es M ms DIAGNOSTIC Tranz 19 VES INFORMATION SUCCUSSFULLY CLEARED J HEPORTIHG ECU Eng ine 511 To clear information do the following 1 Select DTCs from the OBD II FUNCTIONS menu 2 Select Clear Diag Info from DTC menu 3 A warning message appears to prevent inadvertent clearing of codes If is selected from the warning message a screen is displayed to confirm deletion of diagnostic information stored in the vehicle controllers MTS 3100 Mastertech Global OBD II Application Page 23 Basic OBD II Functions 2 Diagnostic Trouble Codes DTCs Some vehicles do not allow DTCs to be cleared while the engine is THIS VEHICLE MAY running In this case the MTS 3100 displays the prompt screen shown at NOT BE ABLE TO the left Before selecting this mode service turn off the engine leaving pus aan the key in the on position For some vehicles communications may be INFORMATION WHILE i THE ENGINE IS lost when the key is turned off and then back on If a RUNNING COMMUNICATION ERROR screen is displayed press 11959 and x TURN ENGINE OFF restart communications You should now be able to clear the diagnostic x
53. apshot menu allows you to select how much data 15 saved before and after the trigger occurs Press to select Trigger Point from the Snapshot menu Use the TRIGGER POINT and keys to move the cursor to select the desired trigger point The display indicates graphically and numerically how much data is saved I 8 3 START HID END before and after the trigger occurs Press when you are finished This trigger point is saved even when the MTS 3100 is turned From Trigger Point off to END FA x Use and to move Trigger Point Fress CENTER SNAPSHOT DATA CAPTURE When the trigger type 15 selected the tester displays a status message indicating that the tester 15 waiting for the trigger and storing data During the data capture phase you can look at the data in any of the display formats described in 7 Data List on page 12 MTS 3100 Mastertech Global OBD ll Application Page 26 Basic OBD II Functions 3 Snapshot While waiting for a trigger to occur you can press 11959 at any time to trigger the snapshot manually regardless of the trigger type selected SAVING A SNAPSHOT When the snapshot memory is filled the tester displays a screen giving SHAPSHOT SAVE you the option of saving the data for long term storage If you press the data 1s saved along with the time and date of the snapshot This allows you to examine it in the future using the Snapshot Replay Press VES to save funct
54. arm up Cycle WG WOT WR 028 BxSx Throttle Position Absolute Throttle Position Sensor in percent Torque Vehicle operation following a key off period which has at least one warm up cycle and one drive cycle Universal Asynchronous Receiver Transmitter standard data encoding device used extensively for serial communication Variable Geometry Turbocharger Vehicle Identification Number The number used to uniquely identify a vehicle Vapor Pressure Absolute Vapor Pressure Variable Pulse Width Modulation The method used to encode the data in the 10 4 Kbit sec version of the 11850 protocol Engine coolant temperature increase by at least 40 F since start up that reaches a temperature of 160 F Wastegate Wide Open Throttle Wide Range Oxygen Sensor Bank x Sensor x These sensors are used in order to better control fuel strategy leading to lower tailpipe emissions MTS 3100 Mastertech Global OBD II Application Page 85 A absolute load value 47 accelerator pedal position 49 air status 48 all data 13 altitude 3 ambient air temperature 47 ambient temperature 3 application cartridge 7 B barometric pressure 49 C calibration ID 40 calibration verification 41 catalyst temperature 50 circuitry 8 clear information 22 commanded exhaust gas recirculation 51 commanded OL equivalence ratio 61 communication error 23 77 control module voltage 52 D data list 12 display formats 14 distance since DTC c
55. beginning of a process Page vi Table of Contents LICENSE AGREEMENT AND WARRANTY ii 1 a ee ee D de ne Rhin etui 1 OBD I IMPLEMENTATION cones 1 siscbccbecdebaasdctiiiessenes 2 OBD SYSTEM AND VEHICLE INFORMATION 3 HARDWARE REQUIRED 2 tts 3 a di da to tes bg d 4 FRINTINGCAPABLIILIEM pasate RR enn 5 5 MANUAL DESCRIPTION _ 6 e USING THE GLOBAL UBD H APPLICATION RS RR nc RO e oes 7 CT dS a rd once 7 HELF SCERPENS et 10 OBD U PARAMETER HELP Lise tele t s eb iderasePbes 11 a eee ee eee eer PS mV IS ee a ee ere 12 MENU 12 A UU S PITT 12 2 DIAGNOSTIC TROUBLE CODES 18 ee a te ey ee Da ee eng 25 Re a soe 30 S MONITORING TESTS Re ea 9 a Uie cos 31 0 OBD EVALUATIONS ee ed 37 dc or 5 40 a ee 43 4 DISPLAYING DATA POR MULTIPLE HUS ete
56. ch Global OBD II Application Page 33 Basic OBD II Functions 5 Monitoring Tests Some O2S test result parameters are manufacturer specific and are therefore defined only by a Test ID TID preceded by a e g 70 and 71 for Chrysler O2S test results You should refer to the vehicle s service manual to determine how to interpret these parameters Additional O2S Information Pressing 9 and GHEY simultaneously provides OBC II PARAMETER HELP additional information about the highlighted O2S Test Results parameter PARAMETER HAME This includes an expanded description of the parameter as well as the E IDs for the responding ECU s and the test For most of the parameters Bees this PARAMETER HELP screen displays programmed test limits as SUPPORTING ECU reported by the ECU REPORT IHG ECU ti Min Wal a BHz sz Max lal d 255z Cur 8 1525 ACTIVE KEYS CO emmm eo oem e eeu T o owes meme Page up down list B CAN VEHICLES The CAN System Tests provide test results for on board monitoring of the following systems Sensor Catalyst Exhaust Gas Recirculation Variable Valve Timing Evaporative Exhaust Gas Sensor Heater Heated Catalyst Secondary Air Fuel System Boost Pressure NOx Adsorber NOx Catalyst Misfire PM Filter and OBD Monitor IDs Test results are reported with maximum and minimum test limits MTS 3
57. d flashes at a rate of about once per second ANGLE When you get to the bottom of the display pressing the key causes the tester to display the second page of unit conversions When you have finished setting up the unit conversions press to return to the OBD II FUNCTIONS menu with the newly selected units ACTIVE KEYS Select parameter type or display next screen Move marker between options HELP Display active keys and information about test mode service operation EXIT Save selection and return to menu Save selection and return to menu EXIT MTS 3100 Mastertech Global OBD II Application Page 43 4 DISPLAYING DATA FOR MULTIPLE ECUS INTRODUCTION In some vehicles OBD IT information can be sent to the tester by more than one ECU For example a vehicle may have both an engine controller and a transmission controller which can provide emissions related diagnostic data using OBD communications When the MTS 3100 first starts communicating with an OBD vehicle THE FOLLOWING ECUs RESPONDED it determines what ECUS are on the vehicle If more than one OBD II ECU 15 present the MTS 3100 displays message indicating the IDs for each ECU along with the type of ECU e g engine or transmission The FES ECM type of ECU that is identified 15 determined SAE recommended practices and not be followed by all vehicle manufacturers PRESS ENTER In most of the OBD II te
58. d in particle management designated area LONG TERM SECONDARY O2 SENSOR FUEL TRIM BANK 1 LONG TERM SECONDARY O2 MTS 3100 Mastertech Global OBD II Application Page 58 Diagnostic Data Parameters SENSOR FUEL TRIM BANK 3 LONG TERM SECONDARY O2 SENSOR FUEL TRIM BANK 2 LONG TERM SECONDARY O2 SENSOR FUEL TRIM BANK 4 UNITS RANGE 100 to 99 22 Secondary O2 Sensor Fuel Trim LTSO2FT1 LTSO2FT2 LTSO2FT3 LTSO2FT4 correction for Banks 1 through 4 can indicate the correction being utilized by the fuel control algorithm at the time the data 15 requested in both open loop and closed loop control If no correction 15 utilized in open loop fuel 0 correction 15 reported LT FT 1 LT FT 2 UNITS 100 to 100 Long Term Fuel Trim 15 the measure of adaptive or feedback fuel correction strategy for the injection of fuel into the engine Long Term Fuel Trim represents the ECU s steady long term adjustment to fuel strategy determined from a look up table in its memory This parameter changes slowly over time at a rate slower than Short Term Fuel Trim and varies with engine design and engine operating conditions The numeric character in LT FT 1 and LT FT 2 define the cylinders that are grouped as a bank for fuel feedback correction Bank 1 is the bank which contains cylinder number 1 Expected values for this parameter are 10 0 warm engine at idle MAF R MAF A MAF B UNITS RANGE Oto 86 010 655
59. ded during the use of this function 05 September 2008 16 09 50 MTS 3100 Mastertech Robert Bosch LLC ACTIVE KEYS EE o foem CS CES COS 9 CLEAR DIAGNOSTIC INFORMATION The Clear Information mode service is used to clear DTCs from all vehicle ECUs along with any other diagnostic information which the controller has saved such as Freeze Data MTS 3100 Mastertech Global OBD Il Application Page 22 Basic OBD II Functions 2 Diagnostic Trouble Codes DTCs Clearing diagnostic information also clears the status of OBD Evaluations making them incomplete It can take 30 to 60 minutes and in some cases longer to complete all of these tests if they are cleared Some inspection and maintenance programs require that the OBD Evaluations be complete before the inspection can proceed When you select Clear Diag Info you are prompted with a warning message This is to prevent inadvertent clearing of codes If you press Te or in response to the prompt the MTS 3100 returns to the DTC menu If you press in response to the prompt the MTS 3100 causes all controllers to clear all emissions related DTCs Freeze Data and OBD Evaluations results CLEAH INFO THIS OPERATION WILL CLEAR ALL DTC FREEZE FRAME AND READINESS TEST DATA DO YOU WISH CONTINUE PRESS YES OR CAO When the function is complete the display shows the result of clearing DTCs for each individual ECU You c
60. delivered to the intake manifold e Ifan on off solenoid is used the parameter displays 0 when EGR is commanded off 100 when the EGR system is commanded on e vacuum solenoid is duty cycled EGR duty cycle from 0 to 100 is displayed e Ifa linear or stepper motor valve is used the fully closed position is displayed as 0 and the fully open position is displayed as 100 Intermediate positions are displayed as a percent of the full open position Any other actuation method is normalised to display 0 when no EGR is commanded and 100 at the maximum commanded EGR position ACTUAL ENGINE PERCENT TORQUE UNITS RANGE ACT displays the calculated output torque of the engine The value 15 a percentage of the available torque produced by the engine TQ REF AIR STATUS STATES UPSTRM DNSTRM RSRVD Air Status AIR STAT displays information about the OBD II system s commanded secondary or auxiliary air injection diverter valve position The possible states are diverting secondary air upstream of the first catalytic converter UPSTRM downstream of the first catalytic converter DNSTRM or venting to the atmosphere ATM OFF RSRVD is applicable for future applications ALCOHOL FUEL PERCENTAGE RANGE 0 to 100 Alcohol Fuel Percentage ALCH PCT indicates the percentage of alcohol contained in ethanol or methanol fuels For example ethanol fuel normally contains 85 ethanol in which ca
61. e Run by the Engine While Active represents the time the engine 15 run while the 15 commanded ON and 15 calculated by the When the 15 commanded ON diagnostic information 15 cleared or 1f 40 warm up cycles have passed with no MIL activation any previous value is replaced with 0 and the timer starts When the 15 ON the timer counts up and when the 15 OFF the timer does not count up The timer value remains at its maximum reading if the MIL On time has exceeded the parameter maximum value MTS 3100 Mastertech Global OBD II Application Page 63 Diagnostic Data Parameters TOTAL ENGINE RUN TIME UNITS RANGE Sec Run Time displays the total engine run time for the life of vehicle Run Time increments while the engine is running It freezes if the engine stalls Run Time is never reset to zero TOTAL IDLE RUN TIME UNITS RANGE Sec Idle Time displays the total engine idle time for the life of vehicle Idle Time increments while the engine is running at closed throttle closed pedal and vehicle speed 15 less than 5 kph It freezes 1f the engine stalls or the engine 15 no longer at idle Idle Time is never reset to zero TOTAL RUN TIME WITH EI AECD 1 ACTIVE THROUGH TOTAL RUN TIME WITH EI AECD 10 ACTIVE UNITS RANGE Sec 0 to 4 294 967 AECDx Time where x 1 through 10 displays the total engine run time with Emission Increasing Auxiliary Emission Control Device x active for the life of vehicle
62. e following 1 Turn the vehicle ignition to ON or start engine 2 Select Scantest from MFT s FUNCTION MENU 3 Select GLOBAL OBD II from the application menu The tester determines the software and hardware configuration present 4 Select OBD II FUNCTIONS from installed software A message Initializing the OBD II interface Please wait appears The OBD II FUNCTIONS menu is displayed The tester displays Attempting and the protocol it is currently using when trying to establish communication with the vehicle The tester displays Confirmed and the protocol when communication has been established then the OBD II FUNCTIONS menu 15 displayed The Mastertech continues to cycle through the different protocols until it establishes communication If there is a communication problem the tester continues to cycle through attempting the protocols until the 4I B button is pressed or the power is turned off If there are multiple OBD II compliant ECUS reporting the software displays a screen identifying the number and description of each ECU SNAPSHOT REPLAY The OBD II TEST MENU also allows the selection of 2 Snapshot OBD II TEST MENU Replay Previously captured snapshot events may be replayed without the MTS 3100 being connected to the vehicle See Snapshot Replay on 1 OED II Functions Z Snapshot HRepla page 27 MTS 3100 Mastertech Global OBD II Application Page 9 Using The Global OBD Il Application Help Screens
63. e memory of the ECU until it has been determined that the malfunction is no longer present and is not commanding the Malfunction Indicator Lamp MIL to illuminate The intended use of Service 0A is to prevent vehicles from passing an in use inspection by disconnecting the battery or clearing DTCs prior to inspection The presence of a Permanent DTC without the MIL illuminated indicates that a proper repair was not verified by the on board monitor system Permanent DTCs are cleared by the ECU and may not be cleared by any diagnostic service or disconnecting power to the ECU Permanent DTCs are displayed in a manner similar to Confirmed DTCs and Pending DTCs They are displayed with the same Pxxx designator and the same text descriptions as J2012 DTCs If the vehicle you are testing contains more than one OBD II ECU the MTS 3100 asks you to select the ECU for which you wish to display the diagnostic information Refer to Chapter 4 PERMANENT DTCs ECU S 7ESCECM umber of Codes 4 4 Intake Air Temperature Sensor 1 Circuit Fange Performance 3 Permanent DTCs Select ECU CBarnk 12 Throttle Pedal Position Sensor Switch Circuit Low For vehicles with multiple ECUs only To view Permanent DTCs do the following 1 Select DTCs from OBD II FUNCTIONS menu 2 Select Permanent DTCs from DTC menu 3 Select the ECU from which you choose to monitor data for vehicles with multiple ECUs only The message Receivin
64. edal position Because of the closed pedal offset wide open pedal usually indicates substantially less than 100 0 In many cases APP R is the average of multiple pedal sensor values RELATIVE FRP RANGE 0 0 to 5177 2 0 0 to 83 7 Fuel Pressure FRP relative to manifold vacuum represents a relative measurement of the fuel rail pressure sensor and 1s referenced to intake manifold vacuum pressure and 1s an input to the ECU RELATIVE INTAKE AIR FLOW A POSITION RELATIVE INTAKE AIR FLOW B POSITION UNITS RANGE 0 to 100 Actual Intake Air Flow position displayed as a percent Intake Air Flow position 15 also known as EGR Throttle Position on compression ignition engines Intake air flow controls are typically used to induct into a compression ignition engine IAF A REL and IAF B REL re scaled values from 0 to about 100 where a value of 0 1s the learned closed throttle value The wide open throttle 1s usually less then 100 For systems where the output is proportional to the input voltage this value is the percent of maximum input reference voltage For systems where the output is inversely proportional to the input voltage this value is 10095 minus the percent of maximum input reference voltage RELATIVE THROTTLE POSITION RELATIVE THROTTLE A POSITION RELATIVE THROTTLE B POSITION UNITS RANGE 0 to 100 Relative Throttle Position represents the percent throttle position when the throttle plate is at its closed
65. eparate enabling requirements and are usually completed at different times Not all OBD Evaluations are available for all vehicles The readiness test conditions required to run the tests and pass fail criteria are all specific to the various vehicles In general running the Federal Test Procedure FTP drive cycle should be adequate to complete the OBD Evaluations on most vehicles The FTP simulates on road operation and includes cold start up idle operation acceleration deceleration a variety of part throttle speed load conditions and hot start up The MTS 3100 OBD Evaluations mode service allows you to display the status of the vehicle s on board monitors If the available OBD Evaluations have not been completed the DTC and Test Result displays do not accurately reflect the condition of the vehicle s emissions related components MTS 3100 Mastertech Global OBD II Application Page 71 B OBD Il OXYGEN SENSOR LOCATION INFORMATION OBD II compliant engine management systems use a new naming convention for oxygen sensors O2S The need for this sensor convention was required because of the OBD II system s use of a downstream 025 025 location information is divided into cylinder bank and O2S location Bank 1 contains the sensor that is downstream from the engine cylinder bank which has number 1 cylinder Bank 2 contains the sensor opposite the cylinder Bank 1 Additionally O2S location is separated into upstream and downstream relative
66. er actuation method is normalised to display 0 when IAF is commanded and 100 at the maximum commanded IAF position MTS 3100 Mastertech Global OBD II Application Page 50 Diagnostic Data Parameters COMMAND EGR A COMMAND UNITS RANGE 0 to 100 Commanded Exhaust Gas Recirculation EGR PCT EGR A CMD EGR B CMD represents the amount of EGR that the ECU 15 allowing to enter the intake manifold and 15 an output from the Depending on the EGR control technology used the operation may be described as follows e On off solenoid commanded EGR displays 0 when the EGR is commanded OFF 100 when the EGR system is commanded ON e Vacuum solenoid commanded EGR duty cycle range from 0 to 100 is displayed e Linear or stepper motor valve the fully closed position displays as 0 the fully open position displays as 100 with positions in between displayed as a percent of the fully open position If more than one EGR is present EGR A CMD and EGR B CMD are displayed to represent the amount each EGR is commanded to allow into the intake manifold COMMAND TAC A COMMAND TAC B UNITS RANGE 0 0 to 100 0 Commanded Throttle Actuator Control TAC PCT TAC CMD TAC CMD represents the amount of throttle opening as determined by the ECU based on current operating conditions and is an output from the ECU For applications that use a linear stepper motor the closed throttle position should read 0 and the open thro
67. eters VGT CONTROL STATUS VGT B CONTROL STATUS STATES OPEN LOOP CLOSED LOOP FAULT A and display the control status of the variable geometry system for each turbo WARM UPS UNITS RANGE n a to 255 Warm Ups since diagnostic trouble codes cleared represents the number of OBD warm up cycles since all DTCs were cleared It is calculated by the ECU The DTC clear event occurs using a ScanTool or perhaps because of a battery disconnect OBD regulations define an OBD warm up cycle as the increase of engine coolant temperature by at least 40 F 22 C from engine start temperature and rises to a minimum temperature of 160 F 70 C 140 F or 60 C for diesel engines Note that if more than 255 warm up cycles show on the ScanTool the number of warm ups since DTCs were cleared will remain at 255 WR 025 B1 S1WR 025 B2 S3 WR 025 B1 S2WR 025 B2 54 WR 025 B1 S3WR O2S B3 51 WR 025 B1 SAWR O2S B3 52 WR 025 B2 S1WR 025 B4 51 WR 025 B2 S2WR 025 B4 52 UNITS RANGE 0 000 to 7 999 Wide Range Oxygen Sensor Voltage Bank x Sensor x represents the actual voltage that is output by wide range or linear oxygen sensors and is an input to the ECU Wide range oxygen sensors allow the ECU to control fuel strategy during leaner or richer operating conditions which leads to a better tailpipe emission control and fuel economy The parameter labels are Bx and Sx Bx refers to engine banks 1 2 3 or 4 and Sx refers to the sensor i
68. failures of the engine control system These diagnostic requirements have been designated as OBD II On Board Diagnostics Phase II with a goal of monitoring all of the emissions related components on board the vehicle for proper operation CARB s intent with the OBD II program is to permit the State s Inspection and Maintenance Program to evolve into a check of the on board computer for the presence of diagnostic trouble codes underhood and tailpipe inspections would no longer be required The OBD Evaluations mode service allows you to display the status of the vehicle s on board monitors which monitor the operation of the emissions related components These monitors must be run in order for the DTC and Test Result displays to accurately reflect the condition of the vehicle s emissions related components Open Loop for Fuel Status parameter Used to indicate that the fuel system is operating open loop because the vehicle has not yet satisfied the conditions to go closed loop Open Loop due to driving conditions for Fuel Status parameter Used to indicate that the fuel system is operating open loop due to such driving conditions as power enrichment or deceleration fuel reduction Open Loop due to fault condition for Fuel Status parameter Used to indicate that the fuel system 15 operating open loop due to a detected system fault MTS 3100 Mastertech Global OBD II Application Page 82 Glossary of Terms Acronyms and Abbreviations
69. g test data Please wait 1s displayed followed by the Pending DTCs information MTS 3100 Mastertech Global OBD II Application Page 20 Basic OBD II Functions 2 Diagnostic Trouble Codes DTCs ACTIVE KEYS Move to another Permanent DTC ENTER Change the reporting ECU EXIT Quit Permanent DTCs mode service aD Print permanent DTCs HELP Display Active Keys and information 4 FREEZE DATA The vehicle s ECU typically saves information about the state of the vehicle when a Diagnostic Trouble Code DTC occurs Freeze data 1s also referred to as Freeze Frame Data and can be read by the tester using the DTC mode service You can select this mode service from DTC menu or you can select it from DTC display mode service refer to DTCs mode service description If the vehicle you are testing contains more than one OBD II ECU the MTS 3100 asks you to select the ECU for which you wish to display the diagnostic information Refer to the Chapter 4 INE SPD Z36HRPM ECT 1B8B F VEHICLE SPD 64MPH ENGINE LOAD 18 87 HAP P 14 1inHg 4 Freeze Data FUEL PRES 34 19 FUEL STAT 1 0 FUEL STAT Z UNUSED LT FT 1 125 For vehicles with multiple ECUs only For vehicles that support multiple Freeze Data Frames To view Freeze Data do the following 1 Select DTCs from OBD II FUNCTIONS menu 2 Select Freeze Data from the DTC menu 3 Select the ECU from which you c
70. her over the previous complete 48 hour period of engine operation or the period needed for a demanded reagent consumption of at least 15 liters whichever 15 longer REAG RATE indicates zero L h when the engine 15 not running BARO UNITS RANGE 070100 0010298 Barometric Pressure represents a reading of ambient outside pressure and 15 an input to ECU 15 normally obtained from a dedicated BARO sensor from MAP sensor at key on and during certain modes of driving or inferred from a sensor and other inputs during certain modes of driving The control module reports BARO from whatever source it 1s derived from Note that some weather services report local BARO values adjusted to sea level In these cases the reported value may not match the displayed value on the external test equipment Also be aware that 1f BARO 15 inferred while driving and stored in non volatile RAM or Keep Alive RAM BARO may not be accurate after a battery disconnect or total memory clear MTS 3100 Mastertech Global OBD II Application Page 49 Diagnostic Data Parameters BOOST PRESSURE A CONTROL STATUS BOOST PRESSURE B CONTROL STATUS STATES RESERVED OPEN LOOP CLOSED LOOP FAULT BP A STAT and BP B STAT display the current status of the boost pressure control systems BOOST PRESSURE SENSOR A BOOST PRESSURE SENSOR B kPa 0 to 2047 BP A ACT and BP B ACT display actual turbocharger supercharger A or
71. hoose to monitor data for vehicles with multiple ECUs only 4 Select the frame of Freeze Data you wish to view for vehicles that support multiple frames of Freeze Data The message Waiting for data Please wait appears The Freeze Data information 15 then displayed Freeze Data Display Freeze Data is available for the first nine emission related DTCs which are detected by the vehicle The number of Freeze Data Frames available for display 15 dependent on the vehicle manufacturer The first parameter in the list is the DTC which caused the Freeze Data to be saved The Freeze Data 15 displayed in MTS 3100 Mastertech Global OBD Il Application Page 21 Basic OBD II Functions 2 Diagnostic Trouble Codes DTCs the same format as the Data List format described in the Data List mode service In addition to the Data List format there are other formats and features available through the key presses described below Additional Freeze Data Information TED TIT PARAMETER HELP Pressing and simultaneously provides additional SORAMETER HAME information about the highlighted diagnostic data parameter This includes eee ea an expanded description of the parameter as well as the IDs for the responding ECU s and the test The current status of the diagnostic data parameter is displayed as reported by the ECU For most of the parameters this parameter help screen also displays the minimum and maximum values G7ES ECM recor
72. ications failed to initialize 1 time Error no response from vehicle MTS 3100 Mastertech Global OBD II Application Page 77 If You Are Having Problem OBD II Interface Self Test E ORD II INTERFACE 9 Self Test PASSED 8 IlI Interface ORD II APPLICATION BOARD INSTALLED Press EXIT To perform the OBD Interface Self Test do the following 1 Select 9 Setup from the FUNCTION menu 2 Select 9 Self Test from the SETUP menu 3 Select 8 OBD II Interface from the SELF TEST menu The test result for the interface circuitry 15 then displayed MTS 3100 Mastertech Global OBD II Application Page 78 D GLOSSARY OF TERMS ACRONYMS AND ABBREVIATIONS The following 15 list of terms acronyms and abbreviations which are applicable to OBD diagnosis and or the operation of this CARB OBD II software AAT ACT AECD AIR ALCH APP ATM BARO BAT BP CAN CARB CAT CID CINP CINT CL Ambient Air Temperature Actual Auxiliary Emission Control Device Secondary Air Injection Alcohol Accelerator Pedal Position Atmospheric Pressure Barometric Pressure Battery Boost Pressure Controller Area Network The California Air Resource Board CARB is the regulatory agency which specifies vehicle emissions standards and testing programs OBD II is CARB s latest program for on board and off board test requirements for new vehicles Catalyst Component Identifier Used in the Non Continuous Tes
73. imum position Wastegate systems use a variety of methods to wastegate position hence boost pressure e Ifan on off solenoid is used the parameter displays 0 when WG is commanded off allow full boost 10095 when the WG system is commanded on dump boost e vacuum solenoid is duty cycled WG duty cycle from 0 to 100 is displayed Ifa linear or stepper motor valve is used the fully closed position full boost 15 displayed as 0 the fully open position dump boost 15 displayed as 100 Intermediate positions are displayed as a percent of the full open position Any other actuation method is normalised to display 0 when the WG is commanded off and 100 when the WG is commanded on CTRL MOD V M RES RANGE Control Module Voltage represents the input power to the electronic control unit ECU Specifically control module voltage is a measurement of battery voltage after any voltage drop in the circuit between the battery and the electronic control unit This parameter measures the input voltage to the electronic control module which for today s vehicles typically measures 12 volts However future automotive electrical sub systems may generate higher voltages that are significantly different from battery voltage Because the vehicle sub system may use a different voltage range this parameter may read as high as 24 or 42 volts Use caution when working around these sub systems and consult the manual for the vehicle yo
74. ing proper operation HARDWARE REQUIRED In order to be fully functional the Global OBD II application requires special OBD II interface circuitry to be installed inside the tester OBD II compliant MTS 3100s are identified by an OBD II Compliant label on the back of the tester A 14 26 PIN DLC Cable P N 02001637 OBD II VIM with CAN P N 02003211 P N F 00K 108 115 or F 00K 108 154 and 16 24 PIN OBD II Cable with CAN P N 02001744 are also required MTS 3100 Mastertech Global OBD Il Application Page 3 Introduction Setup Instructions SETUP INSTRUCTIONS The following steps explain how to setup an OBD II compliant MTS 3100 for testing OBD II compliant vehicles If your MTS 3100 tester does not have an OBD II COMPLIANT sticker on the back refer to Hardware Required on page 3 To setup an OBD II compliant MTS 3100 for testing OBD II compliant vehicles do the following 1 Ensure the MTS 3100 is powered OFF 2 Insert the program card into the program card slot on the right side of the tester 3 Remove any adapters installed on the 14 26 Pin DLC Cable 4 Connect the 14 26 Pin DLC Cable to the tester and tighten the screws 5 Connect the 24 14 Pin Controller Area Network CAN Vehicle Interface Module to the 14 26 Pin DLC Cable and tighten the screws 6 Connect the 16 24 Pin OBD II Cable with CAN to the other side of the CAN VIM and tighten the screws 7 Be sure the vehicle ignition switch is OFF 8 Remove any adap
75. ion You can save up to 8 snapshot events but in some cases you Press NO to quit may be limited to fewer than 8 due to the size of previously saved snapshots To get more storage you can delete snapshots as part of the Snapshot Replay function 11717795 1 40 PH SNAPSHOT REPLAY Once you have captured snapshot data you can examine it whether or not SNAPSHOT REPLAY you choose to save it If you save the data you can also come back later and look at it as part of the Snapshot Replay function This can be done 5 oe without vehicle communication by selecting Snapshot Replay from the 11 17 95 11 25 II Test menu This mode service can also selected after communication 1s established by selecting Snapshot Replay from the SESSEL IER Snapshot menu list of dates and times for the stored events 15 displayed Select the desired event by scrolling down the list with the key and pressing 5838 Press 1 ENTER delete snapshot When you select a snapshot event to replay the tester first displays a screen telling you how many ECUs were in the vehicle being tested and what type of trigger was used Press 1959 to proceed to the data display When the Snapshot Replay mode service 15 first entered the tester TNCINE CPR CEMRP displays the data for the trigger sample the sample at time 0 00 seconds ECT 1H2 F The status line displays the time of the current sample with
76. is input to the ECU The O2S signal is a measure of the oxygen content in the exhaust emission gases that surround the sensor tip and 15 a primary input to ECU Once O2S is warmed up 7500 F its output voltage fluctuates above and below threshold of 0 450 volts Values greater than 0 450v indicate a rich condition while values less than 0 450v indicate a lean condition If the O2S has not achieved its normal operating temperature its value may remain at 0 450v Associated with the OBD II system and the parameter label are Bx and Sx Bx refers to Bank 1 or 2 and Sx refers to the sensor in positions 1 2 3 or 4 Refer to Appendix B OBD II Oxygen Sensor Location Information for a more complete description of the O2S naming convention PM SENSOR MASS CONCENTRATION BANK 1 SENSOR 1 PM SENSOR MASS CONCENTRATION BANK 2 SENSOR 1 UNITS RANGE PM11 and PM21 display the particle mass concentration for each bank of the engine POWER TAKE OFF PTO STATUS ON OFF 0 reagent to Power Take Off status displays whether the 15 active ON or not active OFF REAGENT TANK LEVEL 100 max reagent cap REAG LVL indicates nominal reagent tank liquid capacity as a percent of maximum MTS 3100 Mastertech Global OBD II Application Page 61 Diagnostic Data Parameters RELATIVE ACCELERATOR PEDAL POSITION UNITS RANGE 100 Relative Pedal Position 1s scaled from 0 to 100 0 being the closed p
77. is output by wide range or linear oxygen sensors and is an input to the ECU Wide range oxygen sensors allow the ECU to control fuel strategy during leaner or richer operating conditions which leads to a better tailpipe emission control and fuel economy The parameter labels are Bx and Sx Bx refers to engine banks 1 2 3 or 4 and Sx refers to the sensor in positions 1 2 3 or 4 See Appendix B OBD Oxygen Sensor Location Information for a more complete description of the O2S naming convention MTS 3100 Mastertech Global OBD II Application Page 67 UNDERSTANDING II WHAT IS OBD The California Air Resource Board CARB required that by model year 1996 all vehicles sold in California under 8500 GVWR contain a certain minimum On Board Diagnostic capability to diagnose emissions related failures of the engine control system These diagnostic requirements have been designated as OBD II On Board Diagnostics Phase IT with a goal of monitoring all of the emissions related components on board the vehicle for proper operation CARB s intent with the OBD II program is to permit the State s Inspection and Maintenance Program to evolve into a check of the on board computer for the presence of Diagnostic Trouble Codes DTCs underhood and tailpipe inspections would no longer be required CARB has left the task of defining the Standards and Recommended Practices needed to implement its OBD II requirements to the Societ
78. is reported as either YES or NO If any monitor is not supported by the vehicle under test it will not be displayed by the scantool If the vehicle you are testing contains more than one OBD II ECU the MTS 3100 asks you to select the ECU for which you wish to display the diagnostic information See Chapter 4 Displaying Data For Multiple ECUS 6 OBD Evaluations ECU 1 Misfire Misfire Select ECU Misfire Fuel Sys Enabl Fuel Sys Comp Comprehens Enabl Comprehens Comp For vehicles with multiple ECUS only To select the OBD Evaluations do the following 1 Select OBD Evaluations 2 Select the ECU from which you choose to monitor data for vehicles with multiple ECUs only The message Waiting for data Please wait 1s displayed followed by the selected test results The first three display items indicate the systems that are continuously monitored by the vehicle PCM e Misfire monitoring e Fuel system monitoring e Comprehensive component monitoring The remaining eight display items indicate the status of the tests which are performed once per trip e Catalyst monitoring e Heated catalyst monitoring e Evaporative system monitoring Secondary air system monitoring e A C system refrigerant monitoring MTS 3100 Mastertech Global OBD Il Application Page 37 Basic OBD Functions 6 OBD Evaluations Oxygen sensor monitoring Oxygen sensor heater monitoring
79. ith the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area 15 likely to cause harmful interference in which case the user will be required to correct the interference at his own expense CE Compliance The MTS 3100 complies with the provisions of the CE directives in particular with EN55022 Class A and EN50082 1 1992 with concern to electro magnetic compatibility Important Please Read When you are using this manual to diagnose a vehicle take the time to be sure you are using the correct cables and adapters Doing so may prevent incorrect vehicle diagnosis Page v License Agreement and Warranty Using This Manual Reading through this manual before putting your MTS 3100 to work introduces you to all of 15 capabilities and tells you how to use them immediately The application software 1s designed to reduce time consuming reference to manuals as much as possible Once you are familiar with the software and its operation you ll be able to spend more time diagnosing and less time reading At the end of each screen description there 15 a list of the active tester keys and their functions Most display screens require input from you such as Ge To respond when the tester asks for information just press the appropriate key on the tester keypad Although there are exceptions pressing generally takes you back to the previous screen or to the
80. l Data List Custom List LED List Bar Graph Line Graph The initial display is in the Data List format Any of the other display formats can be selected by pressing the appropriate key 6 If you forget press IAE for a list of the display modes services MTS 3100 Mastertech Global OBD II Application Page 14 Basic OBD II Functions 1 Data List EHGIHE SPD ECT C7 VEHICLE IGN TIHIHG 12 5 ENGINE LURnD 41 7 TPS CAP LEDS FUEL STAT 1 CL FUEL 2d UNUSED SI FT 1 4 4 LT FT 1 FO O25 B1 51 8 3900 ENGINE SPD IPs 4 OFS BA 81 OFS BA 2 A ABAL O28 S1 4 166 O25 BA SZ 4 585 FUEL FLIEL MIL STAT STAT JSTATUS 1 2 CL UHUSEGIOH EHGIME 5 0 CSN 5 6 5 025 Bl 51 CREER i o 1 25 025 Bi ge H ngu 1 8 1 25 of p2 16580 CN 1 6 1 25 028 B2 us B 5960 UE E i o 1 25 MTS 3100 Mastertech Global OBD II Application ALL DATA LIST In the All Data List format all parameters which have been read from the vehicle or selected in the User List are displayed in one scrolling list If parameters have been selected in the User Select List only the selected parameters are displayed Press Or to scroll through the list You can use and to page through the parameters one screen at a time CUSTOM LIST In the Cus
81. lays turbocharger A compressor inlet temperature if utilized by the control module strategy TURBOCHARGER A COMPRESSOR OUTLET TEMPERATURE RANGE ut 40 to 215 TCA COUTT displays turbocharger A compressor outlet temperature if utilized by the control module strategy TURBOCHARGER A TURBINE INLET TEMPERATURE UNITS RANGE 40 to 6513 5 TINT displays turbocharger A turbine inlet temperature if utilized by the control module strategy TURBOCHARGER A TURBINE OUTLET TEMPERATURE UNITS RANGE C 40 to 6513 5 TCA TOUTT displays turbocharger A turbine outlet temperature if utilized by the control module strategy VARIABLE GEOMETRY TURBO A POSITION VARIABLE GEOMETRY TURBO B POSITION 0 vanes bypassed to 100 vanes not bypassed VGT A ACT and VGT B ACT display variable geometry turbocharger actual vane position as a percent VGT A or B ACT are normalized to the maximum VGT commanded output parameter Vane position is normalised to display 0 when the vanes are fully bypassed and 100 when the vane are fully utilized VEHICLE SPD UNITS RANGE 156 010255 Vehicle Speed 15 an indication of vehicle speed in miles per hour kilometers per hour The uses vehicle speed to make determinations about current engine operating conditions and the operation of various engine management system output components MTS 3100 Mastertech Global OBD II Application Page 65 Diagnostic Data Param
82. leared 53 distance while MIL on 53 DTCs 18 MTS 3100 Mastertech Global OBD II Application INDEX E engine coolant temperature 54 engine load 54 engine run time 55 engine speed 55 equivalence ratio bank sensor 56 evap leak test 30 evaporative purge 56 evaporative vapor pressure 56 exhaust gas recirculation 54 font size 17 freeze data 20 freeze frame data 18 fuel level 57 fuel rail pressure 57 62 fuel status 58 fuel trim oxygen sensor 57 hardware 3 ignition timing 59 information 40 intake air temperature 58 interface circuitry 8 Page 86 L long term fuel trim 60 low fuel 3 malfunction indicator lamp 3 61 manifold absolute pressure 60 mass air flow 60 Mastertech setup 4 mode all data 13 clear information 22 data list 12 evap leak test 30 freeze data 20 information 40 OBD controls 30 OBD evaluations 37 other results 35 pending DTCs 19 read DTCs 18 snapshot 25 system tests 31 userlist 13 multiple ECUs 44 O OBD certification 61 OBD controls 30 OBD evaluations 9 22 37 72 OBD II description 69 disabled 3 exemptions 1 communication problems protocols 71 other results 35 oxygen sensor 62 67 to 68 oxygen sensor location 73 P pending DTCs 19 power take off unit 3 printng 5 R read DTCs 18 relative throttle position 63 MTS 3100 Mastertech Global OBD II Application S scantest 7 short term fuel trim 64 snapshot delete 27 mode 25 replay 27 sa
83. m Observe the following before beginning diagnostic service MIL OPERATION When excessive tailpipe emissions or powertrain component failure are detected by the OBD II system the Malfunction Indicator Lamp MIL will illuminate LOW FUEL TANK LEVEL Automobile manufacturers may disable OBD II monitors which can be affected by running the vehicle out of fuel example a monitor may become disabled when fuel tank volume is below 15 of maximum fuel tank capacity e ALTITUDE Automobile manufacturers may disable OBD II monitors which can be affected by altitude example a monitor may become disabled when vehicle 15 operated above 8 000 feet elevation AMBIENT TEMPERATURE Automobile manufacturers may disable OBD II monitors which can be affected by ambient temperature example a monitor may become disabled when a vehicle is started below 20 F ambient POWER TAKE OFF UNIT Automobile manufacturers may disable OBD II monitors which can be affected by power take off unit operation example a monitor may become disabled when a vehicle power take off is engaged or active of the above are part of the California Air Resources Board OBD II regulation and are options available to the automobile manufacturer for vehicle Powertrain Control Module PCM development In the case of some monitors per the above a manufacturer may have determined that a monitor is unreliable or not complete when certain conditions exist therefore not enabl
84. mal IAT IGN I M IM240 INT ISO ISO 9141 ISO 9141 2 ISO 14230 4 ISO 15765 4 Key Help 1 LTSO2FT LVL MAF R Federal Test Procedure test procedure used to determine compliance of light duty motor vehicles with federal emissions standards The FTP simulates on road operation and includes cold start up idle operation acceleration deceleration a variety of part throttle speed load conditions and hot start up Fuel Tank Pressure Fuel System Status for Bank 1 This parameter indicates whether the fuel control system for Bank 1 is operating Open Loop or Closed Loop using feedback from one or more oxygen sensors Glow Plug Lamp A number system used by computers consisting of 16 digits Hexadecimal numbers are represented by the digits 0 through 9 plus A through F representing values of 10 through 15 In the MTS 3100 and in this manual hexadecimal numbers are preceded with a e g C4 7F or 41 Intake Air Flow Intake Air Temperature in degrees The Unit Conversion function can be used to switch between F and C Injection Control Pressure Ignition Inspection Maintenance IM240 is an enhanced inspection and maintenance test program legislated by the U S Environmental Protection Agency EPA to meet federal clean air standards Inlet Temperature International Organization for Standardization The European organization which controls the ISO 9141 documents
85. n positions 1 2 3 or 4 See Appendix B OBD II Oxygen Sensor Location Information for a more complete description of the O2S naming convention WASTEGATE A POSITION WASTEGATE B POSITION 0 no flow closed to 100 max flow full open WG ACT and WG B ACT display wastegate actual position as a percent WG A or B ACT are normalised to the maximum wastegate commanded output control parameter Wastegate systems use a variety of methods to wastegate position hence boost pressure e Ifan on off solenoid is used WG A or B ACT display 0 when WG is commanded off allow full boost 100 when the WG system is commanded on dump boost e Ifa vacuum solenoid is duty cycled WG duty cycle from 0 to 100 is displayed Ifa linear or stepper motor valve is used the fully closed position full boost is displayed as 0 the fully open position dump boost 15 displayed as 100 Intermediate positions are displayed as a percent of the full open position Any other actuation method is normalised to display 0 when the WG is commanded off and 100 when the WG is commanded on MTS 3100 Mastertech Global OBD II Application Page 66 Diagnostic Data Parameters 025 B1 S1WR 025 B2 S3 WR 025 B1 S2WR O2S B2 54 WR 025 B1 S3WR 025 B3 51 WR 025 B1 SAWR O2S B3 52 WR 025 B2 S1WR 025 B4 51 WR 025 B2 S2WR 025 B4 52 UNITS RANGE 128 00 to 127 99 Oxygen Sensor Voltage Bank x Sensor x represents the actual voltage that
86. om the PARAMETER SELECTION screen Refer to the PARAMETER SELECTION in the Data List section The message Waiting for data Please wait appears followed by the Snapshot screen MTS 3100 Mastertech Global OBD ll Application Page 25 Basic OBD II Functions 3 Snapshot TRIGGER TYPES In the Snapshot mode service data 15 saved in the tester memory while it 15 waiting for a trigger condition Once the trigger occurs data continues to be saved until the memory 15 full Three types of triggers can be selected from the Snapshot menu TRIGGER TYPES KEYPRESS DESCRIPTION 1 Any DTC Trigger Snapshot trigger on the occurrence of any DTC 2 Single DTC Trig snapshot trigger on the occurrence of a single that you specify 3 Manual Trigger Snapshot trigger by an zb Misa key press Single DTC Trig DTC TRIGGER Press to select Single DTC Trigger from the Snapshot menu to manually select the DTC that you wish to trigger on Select the character Enter DTC 50000 to modify with the and keys The tester keypad can be used to enter the numeric value of the DTC The and keys can also be used to modify the DTC values The first DTC character highlighted can scroll through and U respectively The second third fourth and fifth characters can scroll from 0 through 9 and A through ENTER to Continue F continuous loop TRIGGER POINT The Trigger Point option in the Sn
87. ool determines what protocol the vehicle uses what diagnostic parameters can be read from the vehicle and what tests are supported by the vehicle The SAE Recommended Practice J1978 defines the basic requirements for an OBD II Scan Tool SAE Recommended Practice J1979 defines the test modes services used by both the vehicle and the OBD II Scan Tool to access vehicle information and functions The following test modes services are required for a basic OBD II Scan Tool Display Current Diagnostic Data Parameters J1979 Mode Service 1 Display Diagnostic Trouble Codes DTCs J1979 Mode Service 3 Display Freeze Frame Data captured by the vehicle along with a DTC 71979 Mode Service 2 Clear DTCs Freeze Frame Data and all other diagnostic information from the on board controller s memory J1979 Mode Service 4 Display results of Oxygen Sensor Monitoring Tests 71979 Mode Service 5 Display results of on board monitoring tests both Continuous and Non Continuous J1979 Modes Services 6 and 7 Display status of the vehicle s on board OBD Evaluations Display results for control of on board system test or component J1979 Mode Service 8 Display vehicle specific information such as VIN calibration numbers calibration verification numbers In Use Performance Tracking and ECU name J1979 Mode Service 9 In addition to these required OBD II Scan Tool functions the testers provide a number of enhancements to
88. rameter Identifier PIDs are hexadecimal numbers used to identify parameters used by the Data List Snapshot and Freeze Data modes services Particle Mass Particle Management NTE carve out area Pressure Power Take Off Pulse Width Modulation The method used to encode the data in the 41 6 Kbit sec version of the J1850 protocol Power Powertrain Diagnostic Trouble Code DTC xxxxx The SAE has defined a standardized set of five digit DTCs wherein the first digit defines the reporting system P powertrain B body C chassis U vehicle network The second digit combined with the first indicate the source definition groupings such as ISO SAE controlled manufacturer controlled etc The third digit defines the DTC category and the last two digits represent the component and condition Example P0001 Fuel Volume Regulator Control Circuit Open P0 Powertrain fault ISO SAE controlled source definition grouping 0 Fuel and Air Metering and Auxiliary Emission Controls DTC category 01 Fuel Volume Regulator Control Circuit component Open condition Random Access Memory Reagent Reference Relative Revolutions Per Minuet Reserved Run Time MTS 3100 Mastertech Global OBD II Application Page 83 Glossary of Terms Acronyms and Abbreviations SAE SAE J1850 SAE J1930 SAE J1962 SAE J1978 SAE J1979 SAE J2012 SAE J2190 SAE J2205 Snapshot SPD ST ST FT I STAT SISO2FT 1
89. re a condition to be present for several drive cycles while the equivalent Pending DTC may be set with the first occurrence of the condition Pending DTCs are displayed in a manner similar to the DTC display mode service They are displayed with the same Pxxxx DTC designations and the same descriptors as the DTCs If the vehicle you are testing contains more than one OBD II ECU the MTS 3100 asks you to select the ECU for which you wish to display the diagnostic information Refer to Chapter 4 PENDING DTCs ECU 18 Engine Humber of Codes 4 Mass or Uolume Air Flow Circuit Malfunction 2 Pending DTCs 3 Throttle Pedal Position Sensor Switch A Circuit High Input For vehicles with multiple ECUs only To view Pending DTCSs do the following 1 Select DTCs from OBD II FUNCTIONS menu 2 Select Pending DTCs from DTC menu 3 Select the ECU from which you choose to monitor data for vehicles with multiple ECUs only The message Receiving test data Please wait 15 displayed followed by the Pending DTCs information MTS 3100 Mastertech Global OBD II Application Page 19 Basic OBD II Functions 2 Diagnostic Trouble Codes DTCs ACTIVE KEYS Move to another Pending DTC X ENTER Change the reporting ECU EXIT Quit Pending DTCs mode service Print Pending DTCs HELP Display Active Keys and information 3 PERMANENT DTCS Permanent DTCs are confirmed DTCs that are stored in the non volatil
90. s is close to the update rate for the Data List parameters selection MTS 3100 Mastertech Global OBD II Application Page 76 If You Are Having Problem Not All Parameters Are Displayed NOT ALL PARAMETERS ARE DISPLAYED Possible Cause The vehicle is not reporting all of the parameters The MTS 3100 OBD II software queries the vehicle s ECU to determine what parameters are supported by the ECU The tester then creates a Data List based on these parameters If the vehicle contains a particular sensor but does not tell the MTS 3100 that it supports that parameter e g a downstream oxygen sensor the MTS 3100 does not display that parameter Recommendation Diagnosis must be performed based on other diagnostic data or procedures TESTER DISPLAYS NO PARAMETERS TO DISPLAY MESSAGE Possible Cause This mode service is not supported by this vehicle Recommendation HO PARAMETERS TO Try a different test mode service This display can occur in the O2S Test Result mode service if the vehicle manufacturer supports O2S testing via a different mode service Some manufacturers use the non continuous version of the On Board Tests mode service to report the results of Press oxygen sensor testing DISPLAY OBD II INTERFACE SELF TEST If one of the following error messages 15 displayed it is recommended that the OBD II I F Self Test be performed e Application cartridge not installed e OBD II commun
91. se Alcohol Fuel Percentage displays 85 0 Alcohol percentage can be determined using a sensor or can be inferred by the fuel control software MTS 3100 Mastertech Global OBD II Application Page 48 Diagnostic Data Parameters APP D APP E APP F UNITS RANGE 0 0 to 100 0 Accelerator Pedal Position D Accelerator Pedal Position E and Accelerator Pedal Position F parameters are an input to the ECU and provide information about accelerator position For OBD systems APP sensor voltage is converted by the ECU and is displayed as an absolute accelerator pedal value in percent APP percentage changes with the movement of the accelerator pedal and should display 0 20 at idle to above 80 at wide open throttle AUTO TRANS NEUTRAL DRIVE STATUS STATES Automatic Transmission Neutral Drive Status N D STAT indicates whether the transmission 15 in park neutral in neutral or in a forward reverse gear in drive AVERAGE DEMANDED REAGENT CONSUMPTION UNITS RANGE L h 0 to 327 675 REAG DEMD indicates average reagent consumption in liters per hour by the engine system either over the previous complete 48 hour period of engine operation or the period needed for a demanded reagent consumption of at least 15 liters whichever is longer REAG DEMD indicates zero L h when the engine is not running AVERAGE REAGENT CONSUMPTION UNITS RANGE Uh REAG RATE indicates average reagent consumption in liters per hour by the engine system eit
92. splay active keys and information about test mode service operation Display specifications for marked parameter Change the reporting ECU Move marker up or down Select Trigger Point or change time scale Change marked parameter to next previous parameter Change marked parameter to next previous parameter not currently being displayed Trigger snapshot Page up down list MTS 3100 Mastertech Global OBD ll Application Page 28 Basic OBD II Functions 3 Snapshot ACTIVE KEYS Trigger Setup o 3 select Any DTC Trigger e Select Single DTC Trigger e Select Manual Trigger o Select Snapshot Replay e Select Trigger Point MTS 3100 Mastertech Global OBD ll Application Page 29 Basic II Functions 4 OBD Controls 4 OBD CONTROLS The On Board Diagnostic OBD controls mode service provides fast access to output controls supported by the vehicle OBD system Some vehicle systems allow the tester to command the operation of certain on board systems to aid in fast accurate diagnosis These tests are specific to the various vehicle manufacturers 1 Evap Leak Test The Evap Leak Test service enables the conditions required to conduct an evaporative system leak test This mode service does not actually run the test but sets conditions necessary to perform the test For example this mode service closes a purge solenoid preventing leakage if the system is pressurized The vehicle manufacturer de
93. ssure FTP sensor or an evaporative system vapor line dependent on vehicle technology It is an input to the ECU When performing an evaporative system diagnostic evaluation the ECU changes evaporative pressure by closing certain vent valves and pumping down the closed off system If there 15 a leak the evaporative system vapor pressure changes at a rate faster than desired giving an indication of a leak Evaporative system vapor pressure changes as the vehicle 15 operated EXHAUST GAS RECIRCULATION TEMP BANK 1 SENSOR 1 EGRT11 EXHAUST GAS RECIRCULATION TEMP BANK 1 SENSOR 2 EGRT12 EXHAUST GAS RECIRCULATION TEMP BANK 2 SENSOR 1 EGRT21 EXHAUST GAS RECIRCULATION TEMP BANK 2 SENSOR 2 EGRT22 RANGE 40 to 215 EGRT11 EGRT12 EGT21 and EGRT22 display EGR gas temperature sensor values EXHAUST PRESSURE SENSOR BANK 1 EXHAUST PRESSURE SENSOR BANK 2 UNITS RANGE kPa 0 to 655 35 EP 1 and EP 2 display the exhaust pressure for each bank of engine 0 to 65535 0 0 to 9505 2 Fuel Pressure FRP represents gauge measurement of fuel rail pressure sensor and 15 an input to the This 15 actual pressure measured by fuel pressure test gauge and 15 referenced to atmosphere ambient pressure Note that direct injection gasoline and diesel fuel injection fuel pressures are higher than standard fuel injection pressures FT O2S B1 S1FT O
94. st modes services if more than one ECU 15 SELECT ECU communicating you are asked to select for which ECU you want to examine data This selection is provided for the following modes 1 ECM NE CE TCM B7E9 services Data List DTCSs Snapshot OBD Controls MonitoringTests OBD Evaluations Information MTS 3100 Mastertech Global OBD II Application Page 44 Displaying Data For Multiple ECUs Introduction Your ECU selection determines which ECU s data 15 displayed For Data List and Snapshot modes services the MTS 3100 displays a EDITED RII composite list of data received from all ECUs Selecting an ECU before ECT entering the mode service determines which ECU s data is displayed first WEHICLE SPD f ICM TIMINC 16 or parameters that are reported by more than one ECU ENGINE LOnD 5 B XP FUEL STAT 1 CL FUEL STAT 2 UNUSED ET Las Pressing displays information about the highlighted parameter including which ECU reported it If more than one ECU reported a parameter you can change the ECU data displayed by pressing and simultaneously Only the data parameters supported by the selected ECU are displayed You can verify the reporting ECU by pressing MTS 3100 Mastertech Global OBD Il Application Page 45 Displaying Data For Multiple ECUs Multiple ECU Status Information MULTIPLE ECU STATUS INFORMATION When viewing multiple OBD II ECU diagnostic da
95. t Results mode service of the On Board Tests function to specify the component for which the test results are being reported Refer to the service manual for the vehicle under test for a definition of the CIDs Compressor Inlet Pressure Compressor Inlet Temperature Closed Loop for Fuel Status parameter Used to indicate that the fuel system is using oxygen sensor s as feedback for fuel control MTS 3100 Mastertech Global OBD II Application Page 79 Glossary of Terms Acronyms and Abbreviations CLFAULT CLR CMD CMPL COUTT CIRL CVN Data Last DD DIST DLC DPF DSV DIG Drive Cycle ECT ECU EGR EGRT EOT EP EQ EVAP FLI Freeze Frame FRP FRT FT FT O2S BI SI Closed Loop with fault for Fuel Status parameter Used to indicate that the fuel system 1s operating closed loop even though a fault with at least one oxygen sensor has been detected The ECU may be using a single oxygen sensor for fuel control Clear Cleared Command Commanded Completed Used for OBD Evaluations Status to indicate that a test has finished running or that it runs continuously Compressor Outlet Temperature Control Calibration Verification Number Used to determine whether emission calibrations in the ECU software have been altered The Data List mode service is used to examine the state of the current diagnostic data parameters SAE J1979 mode service 1 Driver s Demand Distance The Data Link Connector pro
96. ta parameters the symbol or x before the parameter name indicates the parameter is being updated by multiple ECUs The symbol indicates the displayed parameter value is being reported as the same value by multiple ECUs The x symbol indicates the displayed parameter value is not being reported as the same value by multiple ECUs If there is no symbol before the parameter name the parameter 1s being updated by a single ECU CHARACTER STATUS BEENDEN Indicates multiple controllers are reporting approximately the same value for the parameter Indicates multiple controllers are reporting different values for the parameter TABLE 4 1 The following table lists the tolerances for the different parameters being labelled or x Multiple parameters that are within the tolerances are reported as being the same Multiple parameters that are not within the tolerances are reported as being not the same PARAMETER TOLERANCE Bx Bank number Sx Sensor number MTS 3100 Mastertech Global OBD II Application Page 46 5 DIAGNOSTIC DATA PARAMETERS The following are the generic diagnostic data parameters defined by the SAE for OBD vehicles Not all parameters are displayed for all vehicles Prior to displaying data the tester queries the vehicle to determine which parameters are available for that vehicle AAT UNITS RANGE 4010 215 40 to 419 Ambient Air Temperature AAT is an analog input
97. termines the conditions which allow or abort the test such as engine running vehicle speed greater than zero or exceeding a specified time period 2 DPF Regeneration This service requests the vehicle initiate a Diesel Particulate Filter regeneration The vehicle manufacturer is responsible for determining the criteria to enable start and stop the test such as engine running vehicle speed or engine RPM 4 OBD Control REQUEST CONTROL Conditionz have been 1 Evap Leak Test enabled to control this function Turn ignition off to 2 DPF Regeneration terminate control Press ENTER To select the Evap Leak Test do the following 1 Select Controls from the OBD FUNCTION MENU 2 Select the desired control from the OBD CONTROL MENU 3 Press to exit MTS 3100 Mastertech Global OBD II Application Page 30 Basic OBD II Functions 5 Monitoring Tests 5 MONITORING TESTS The System Tests mode service provides you with the capability to examine the results of various additional tests which the vehicle s controller s can perform If supported these tests can quickly provide pass fail status for many on board tests executed by an OBD controller A NON CAN VEHICLES Non CAN vehicle tests include Oxygen Sensor test results and other test results for systems that are not continuously monitored Not all vehicle manufacturers support this test mode service This section applies only to non CAN vehicles For
98. ters installed in the vehicle SAE J1962 OBD II DLC 9 Connect the OBD Cable with CAN to the vehicle DLC Power and ground are provided through DLC connector so connecting the 12V power cable to the vehicle should not be required The green LED illuminates on the MTS 3100 to verify power and ground to the SAE J1962 DLC If it does not verify that the cable connections are secure and that there are no blown fuses If there is still no green LED please see the f You Are Having A Problem section in the MTS 3100 Mastertech Global OBD II Application Operator s Manual for more details 10 Turn the vehicle ignition switch to the Key ON Engine OFF KOEO or Key ON Engine Running KOER positions 11 Turn the tester ON to begin diagnostics MTS 3100 Mastertech Global OBD Il Application Page 4 Introduction Printing Capabilities OBD Compliant Mastertech MTS 3100 zi Green LED 14 26 Pin DLC Cable P N 02001637 24 14 Pin Controller Area Network CAN Vehicle Interface Module P N 02003211 or P N F 00K 108 115 Or P N F 00K 108 154 16 24 Pin OBD Il Cable with CAN P N 02001744 PRINTING CAPABILITIES The Global OBD II application supports printing data via a serial printer such as the VP414 or compatible serial printer connected to the RS232 port located on the left side of the tester s base Two types of printing are supported by the OBD II software Pressing the
99. th engine design and engine operating conditions The numeric character in ST FT1 and ST FT 2 defines the cylinders that are grouped as a bank for fuel feedback correction Bank 1 1s the bank which contains cylinder number 1 Expected values for this parameter can be 2 0 warm engine at idle STORED DTCS UNITS RANGE Stored DTCs is the number of emission related diagnostic trouble codes DTCs that have been stored in the reporting ECU For OBD II systems there can be multiple OBD compliant ECUs Also more than one ECU can report more than one stored DTC Therefore the number of stored DTCs refers to the ECU whose data is currently being displayed Remember also that OBD DTCs are 5 characters and are broken into system categories See Pxxxx in the glossary TIME DTC CLR UNITS RANGE 0 to 65535 hrs to 1092 Time Since Diagnostic Trouble Codes Cleared represents the time elapsed since the diagnostic information was cleared using a Scantool or battery disconnect from ECU memory and is calculated by the ECU The timer value remains at its maximum reading if the time since the diagnostic information was cleared has exceeded the parameter maximum value This parameter is not associated with any diagnostic trouble code DTC and provides an indication for I M Inspection Maintenance test stations when the last time diagnostic information was cleared from the OBD II ECU TIME MIL ON UNITS RANGE 0 to 65535 hrs to 1092 Tim
100. to the ECU This parameter provides a temperature indication of ambient air temperature as it flows across the AAT sensor Note that the in parenthesis indicates the parameter is temperature related ABSOLUTE LOAD UNITS RANGE Absolute Load Value represents the breathing efficiency of the engine and 15 calculated by the ECU using following equation g air e strok Absolute Load Value TUM L l cylinder displacement in liters The ECU uses this parameter to get load information necessary to determine spark and EGR flow rates For naturally aspirated engines the operating range of absolute load is lower than Turbo or Supercharged engines and at WOT this parameter may closely represent an engine s volumetric efficiency MTS 3100 Mastertech Global OBD II Application Page 47 Diagnostic Data Parameters ABSOLUTE EVAP SYSTEM VAPOR PRESSURE UNITS RANGE kPa 0 0 to 327 6 EVAP VPA or Absolute Evaporative System Vapor Pressure is normally obtained from a sensor located in the fuel tank or a sensor in an evaporative system vapor line The pressure represents the actual pressure or vacuum that occurs within the fuel tank during normal operation ACTUAL EGR A DUTY CYCLE POSITION ACTUAL EGR B DUTY CYCLE POSITION RANGE 0 0 to 100 EGR A ACT and EGR B ACT display the actual percentage of maximum EGR being
101. tom List format you can select any combination of 12 parameters to display 16 parameters in the small character size Use or to highlight a parameter to change and then press OT Qe to sequence through the parameters Use and to sequence through parameters other than those that are currently displayed LED LIST The LED List format operates similarly to the Custom List except that discrete parameters e g MIL can be displayed on the red and green LEDs and labeled on the screen Q BAR GRAPH The Bar Graph format displays parameters as bars whose lengths represent the magnitude of the parameter This can be useful for comparing similar parameters oxygen sensor voltages or fuel trim You can select any combination of parameters to display by using the and keys to highlight one of the parameters and then using the and keys to change the parameter displayed Page 15 Basic Functions 1 Data List LINE GRAPH ENGIHE SPD fHARPH VEHICLE SPD Bkm h The Line Graph display is a plot of any two parameters as a function of time You can set the total width of the plot anywhere from 5 seconds to 300 seconds default is 30 seconds Press the and keys to change the plot range 5 10 15 30 60 100 200 or 300 seconds The plot range has no affect on the rate at which the data comes into the tester Remember that the data rate is dependent on the number of parameters requested in the PARAMETER SELECTI
102. ttle position should read 100 positions in between are displayed as a percent of the full open throttle position COMMANDED FUEL RAIL PRESSURE A COMMANDED FUEL RAIL PRESSURE B UNITS RANGE kPa 0 to 655350 FRP A and display commanded fuel rail pressure as measured a gauge COMMANDED INJECTION CONTROL PRESSURE A COMMANDED INJECTION CONTROL PRESSURE UNITS RANGE kPa 0 to 655350 ICP CMD and ICP CMD display commanded injection control pressure COMMANDED VARIABLE GEOMETRY TURBO A POSITION MTS 3100 Mastertech Global OBD II Application Page 51 Diagnostic Data Parameters COMMANDED VARIABLE GEOMETRY TURBO B POSITION 0 vanes not bypassed to 100 not bypassed A CMD and VGT CMD display the commanded vane position of a variable geometry turbocharger as a percentage of the maximum position Ifa linear or stepper motor is used the fully bypassed vane position is displayed as 0 and the fully utilized vane position is displayed as 100 Intermediate positions are displayed as a percent of the fully utilized vane position Any other actuation method is normalised to display 0 when the vanes are fully bypassed and 100 when the vane are fully utilized COMMANDED WASTEGATE A POSITION COMMANDED WASTEGATE B POSITION 0 no flow closed to 100 max flow full open WG A CMD and WG B CMD display the commanded wastegate position as a percentage of the max
103. u are testing DIST DTC CLR UNITS RANGE 0 to 65535 010 40722 Distance since diagnostic trouble codes cleared represents the distance the vehicle has been driven since the DTCs were cleared It is calculated by the ECU The DTC clear event occurs using a ScanTool or perhaps MTS 3100 Mastertech Global OBD II Application Page 52 Diagnostic Data Parameters because of a battery disconnect This parameter can be helpful when performing inspection and maintenance testing Note that if greater than 40722 miles 65535 kilometers appear on the Scantool the distance driven since DTCs were cleared remains at 40722 miles 65535 kilometers DIST MIL ON UNITS RANGE 010 65535 01040722 Distance travelled while the Malfunction Indicator Lamp MIL is activated represents the ground based distance that the vehicle has been driven while the MIL is commanded ON This parameter 15 calculated by the ECU and counts up until the MIL is commanded OFF DPF BANK 1 INLET TEMPERATURE SENSOR DPF BANK 2 INLET TEMPERATURE SENSOR UNITS RANGE 40 to 6513 5 DPF1 INT and DPF2 INT display the DPF Diesel Particle Filter inlet temperatures of each bank DPF BANK 1 OUTLET TEMPERATURE SENSOR DPF BANK 2 OUTLET TEMPERATURE SENSOR RANGE 40 to 6513 5 OUTT and DPF2 OUTT display the DPF Diesel Particle Filter outlet temperatures of each bank DRIVER S DEMAND ENGINE PERCENT TORQUE RANGE 125 to 13
104. unction Tester MFT Program Card and performs the basic functions required by the California Air Resource Board CARB as part of the On Board Diagnostics Phase II OBD IT OBD II IMPLEMENTATION The OBD II system was implemented on some production vehicles in early 1994 even though automobile manufacturers were required to meet the OBD II regulation for all vehicles sold in California by 1996 Because of their early adaptation 1994 95 vehicles equipped with the OBD II system pre 1996 were given exemptions by the California Air Resources Board These exemptions gave automobile manufacturers the opportunity to implement certain OBD II modes services for 1994 95 When performing diagnostics on 1994 95 vehicles and communication problems occur when using the Global OBD II Application the communication problem may be a vehicle software problem If communication problems occur refer to the service manual or Technical Service Bulletin information published by the manufacturer for the vehicle being tested Communication problems between the tester and vehicle will not cause incorrect electronic powertrain operation MTS 3100 Mastertech Global OBD II Application Page 1 Introduction Global OBD Il Functions GLOBAL OBD II FUNCTIONS The Global OBD II Application performs the following OBD II functions Automatic determination and display of the communication protocol Display of the OBD Evaluations monitor status Display of the vehicle s
105. ve 27 spark advance 59 stored DTCs 64 system tests 31 T throttle position sensor 65 time since DTC cleared 64 time while MIL on 64 trigger point 26 types 26 troubleshooting 75 U unit conversion 43 userlist 13 V vehicle speed 66 VIN 40 VP411 printer 5 W warm ups 67 WR O2S 67 Page 87
106. vides the link between the tester and the vehicle Diesel Particle Filter Data Security Validation field The DSV is the last field of an Expanded Diagnostic Protocol EDP message It 15 one byte 2 characters long and 15 used to verify that an EDP message is entered properly Diagnostic Trouble Codes DTCs indicate fault conditions found by the vehicle s on board controller while it is monitoring the vehicle s operation See Pxxxx on page 93 A single key on to key off cycle where the engine has been started then shut down Engine Coolant Temperature in degrees The Unit Conversion function can be used to switch between F and C Electronic Control Unit The module which performs the OBD II testing and communicates with the OBD II Scan Tool Exhaust Gas Recirculation Exhaust Gas Recirculation Temperature Engine Oil Temperature Exhaust Pressure Equivalence Evaporative Fuel Level Input An OBD II test mode service where the tester displays diagnostic data parameters which were saved by the vehicle at the time a Diagnostic Trouble Code occurred Fuel Rail Pressure Fuel Rail Temperature Fuel Trim Short Term Fuel Trim for oxygen sensor 1 on Bank 1 This parameter indicates the amount of adjustment of the fuel injected into the engine based on feedback from this oxygen sensor MTS 3100 Mastertech Global OBD II Application Page 80 Glossary of Terms Acronyms and Abbreviations FTP FTP Fuel Stat 1 GLP Hexadeci
107. y checks with the engine running in enclosed space such as a garage be sure there is proper ventilation Never inhale exhaust gases they contain carbon monoxide a colorless odorless extremely dangerous gas which can cause unconsciousness or death WARNING Avoiding Injury N Always set the parking brake securely and block the drive wheels before performing any checks or repairs on the vehicle Important Please Read The MTS 3100 is designed for use by trained service personnel only It has been developed for the sole purpose of diagnosing and repairing automotive electronic systems With the help of the tester the information presented in this manual and the appropriate automotive service manual qualified personnel should be able to diagnose and repair electronic control systems Disclaimer Every attempt has been made to provide complete and accurate technical information based on factory service information available at the time of publication However the right is reserved to make changes at any time without notice FCC Compliance This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance w
108. y of Automotive Engineers SAE The SAE committees that define these documents are made up of worldwide representatives from the vehicle manufacturers tool manufacturers service industry and regulatory agencies plus other related automotive disciplines The glossary in Appendix D contains a brief description of the SAE J documents which provide these definitions Part of the OBD II program 15 for the vehicle to provide a standard interface for off board diagnostic test equipment This standard interface includes a standard test connector referred to as the SAE J1962 connector a standard communication protocol SAE J1850 or ISO 9141 2 and a standard set of diagnostic test modes services defined by SAE J1979 MTS 3100 Mastertech Global OBD II Application Page 68 Understanding OBD II II Scan Tool OBD II SCAN TOOL Part of intent of CARB s OBD II program is that a single diagnostic tester can be used to read the diagnostic information from any OBD II compliant vehicle A tester which satisfies this requirement can be designated as an OBD II Scan Tool and is defined by the SAE document J1978 One of the requirements of the OBD II Scan Tool is that it has to work with any OBD II compliant vehicle and be able to automatically determine all information required to communicate with the vehicle The operator does not enter any vehicle specific information such as the vehicle manufacturer model year or engine The OBD II Scan T

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