Home

Craftsman CanOBD Diagnostic Tool Owner's Manual

1. Check Engine lamp on the vehicle s instrument panel will light steady on LCD Display Displays settings Menu and submenus test results Diagnostic Tool functions and Monitor status information See DISPLAY FUNCTIONS on next page for more details CABLE Connects the Diagnostic Tool to the vehicle s Data Link Connector DLC Craftsman 87702 Diagnostic Tool Controls DISPLAY FUNCTIONS DISPLAY FUNCTIONS 12 13 14 Vd na a Se u E E 0000000 ail 1P0743 Generic RES Torque Converter Clutch Solenoid Circuit Electrical Figure 2 Display Functions See Figure 2 for the locations of items 1 through 14 below 1 2 Craftsman 87702 UM MONITOR STATUS field Identifies the UM Monitor status area Monitor icons Indicate which Monitors are supported by the vehicle under test and whether or not the associated Monitor has run its diagnostic testing Monitor status When a Monitor icon is solid it indicates that the associated Monitor has completed its diagnostic testing When a Monitor icon is flashing it indicates that the vehicle supports the associated Monitor but the Monitor has not yet run its diagnostic testing gt Vehicle icon Indicates whether or not the Diagnostic Tool is being properly powered through the vehicle s Data Link Connector DLC A visible icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector ap Link icon Indicates whe
2. Enabling the Audible Tone 1 Use the DOWN button to highlight Audible Tone in the Menu then press the ENTER O button m The Audible Tone screen displays Press the DOWN O button as necessary to highlight ON or OFF as desired When the desired option is selected press the ENTER button to save your changes and return to the Menu Tool Setting Menu Select and press 4 Adjust Brightness Display Backlight Select Language Audible Tone Select and press OFF Press M to exit To exit the Audible Tone screen and return to the Menu without making changes press the M m button Craftsman 87702 63 Additional Functions ADJUSTMENTS AND SETTINGS 64 Using the Backlight 1 Use the DOWN button to highlight Display Backlight in the Menu then press the ENTER button m The Display Backlight screen displays Press the DOWN button as necessary to select the desired backlight mode either ON or OFF When the desired backlight mode is selected press the ENTER button to save your changes Tool Setting Menu Select and press Adjust Brightness Audible Tone Select Language Display Backlight Select and press 4 FON OFF Press M to exit m The display returns to the Menu and the backlight turns on or off as selected To exit the Display Backlight screen and return to the Menu without making changes press the M m butt
3. The Diagnostic Tool has the ability to retrieve and erase ABS codes Vehicle makes supported by the Diagnostic Tool are shown below Please visit www innova com for a complete list of vehicles covered BUICK JEEP CADILLAC LEXUS CHEVROLET LINCOLN CHRYSLER MERCURY DODGE OLDSMOBILE FORD PONTIAC GMC SCION HUMMER TOYOTA Craftsman 87702 71 Glossary GLOSSARY OF TERMS AND ABBREVIATIONS INTRODUCTION This Glossary contains definitions for abbreviations and terms you may find in this manual or in your vehicle service manual GLOSSARY OF TERMS AND ABBREVIATIONS CARB California Air Resources Board CCM Central Control Module Computer Control System An electronic control system consisting of an on board computer and related sensors switches and actuators used to ensure peak performance and fuel efficiency while reducing pollutants in the vehicle s emissions DIY Do It Yourself DLC Data Link Connector Drive Cycle An extended set of driving procedures that takes into consideration the various types of driving conditions encountered in real life Driving Condition A specific environmental or operation condition under which a vehicle is operated such as starting the vehicle when cold driving at steady speed cruising accelerating etc DTC s Diagnostic Trouble Code s EGR Exhaust Gas Recirculation System Status An indication of whether or not a vehicle
4. While linked to a vehicle press and release the M m button m The Main Menu displays Main Menu SE and press k Use the DOWN button to highlight Venide me S Firmware Version in the Menu then press the ENTER button m The Firmware Version screen displays m The screen shows the Diagnostic Tools current firmware version NEEN bootloader version and data base Kt version Data Base Version V1 01 00 Press the M m button to return to the Menu ADJUSTMENTS AND SETTINGS 62 The Diagnostic Tool lets you make several adjustments and settings to configure the Diagnostic Tool to your particular needs It also contains an OBD2 DTC Library that allows you to search for DTC definitions The following functions adjustments and settings can be performed when the Diagnostic Tool is in MENU Mode To enter the MENU Mode 1 Adjust Brightness Adjusts the brightness of the LCD display screen Audible Tone Turns the Diagnostic Tool s audible tone on and off When turned on a tone sounds each time a button is pressed Display Backlight Turns the display backlight on and off Select Language Sets the display language for the Diagnostic Tool to English French or Spanish Unit of Measurement Sets the Unit of Measurement for the Diagnostic Tool s display to USA or Metric Adjustments and settings can be made only when the Diagnostic Tool is NOT connected to a vehicle W
5. Turn the ignition OFF wait 5 seconds then turn back ON to reset the computer Ensure your vehicle is OBD2 compliant See VEHICLES COVERED on page 5 for vehicle compliance verification information The Diagnostic Tool will automati cally re link to the vehicle s com puter every 30 seconds to refresh the data being retrieved When data One moment is being refreshed the message AUTO LINK is in One moment Auto link in Elle progress is shown on the LCD Linked to ISO 9141 display This action repeats as long as the Diagnostic Tool is communicating with the vehicle s computer Craftsman 87702 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE m The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no codes including enhanced codes are present a No Powertrain DTCs or Freeze Frame Data is presently stored in the vehicle s computer message is displayed m The Diagnostic Tool is capable of retrieving and storing up to 32 codes in memory for immediate or later viewing 7 To read the display Refer to DISPLAY FUNCTIONS on page 9 for a descrip E tion of LCD display elements m A visible e icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m A visible ab icon indicates that the Diagnostic Tool is linked to communicating with the vehicle s computer m The UM Monitor Status icons indicate the
6. Using the Diagnostic Tool VIEWING ABS DTCs m If the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the Diagnostic Tool s display Verify the connection at the DLC and verify the ignition is ON Ford ABS Unable to establish a link with the vehicle Verify the connection at the DLC Verify the ignition is ON and pres button Turn the ignition OFF wait 5 seconds then turn back ON to reset the computer 3 To read the display Refer to DISPLAY FUNCTIONS on page 9 for a description of LCD display elements m A visible e icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m A visible ab icon indicates that the Diagnostic Tool is linked to communicating with the vehicle s computer m The upper right hand corner of the display shows the number of the code currently being displayed the 274 For total number of codes retrieved C1 74 ABS whealsepeea m The Diagnostic Trouble Code DTC eel E y Les and related code definition are shown in the lower section of the LCD display If the definition for the currently displayed code is not available an advisory message shows on the Diagnostic Tool s display IM MONITOR STATUS icons are not displayed when viewing ABS DTCs Ford C1275 ass The DTC Definition is not available please visit www craftsman com In the case of long code definitio
7. button to confirm each character When you have selected all the DTC characters press the ENTER button to view the DTC definition m f you entered a Generic DTC DTCs that start with PO P2 and some P3 P0743 Generic The selected DTC and DTC Is Circuit Electrical definition if available show on the Diagnostic Tools LCD display m f you entered a Manufacturer Specific DTC DTCs that start with P1 and some P3 Select Make The Select Manufacturer screen Acura E a Romeo Audi displays BMW Chrysler Use the DOWN button as necessary to highlight the appro priate manufacturer then press the ENTER button to display the correct DTC for your vehicle P1274 The DTC Definition is not Sr If a definition for the DTC you available please visit entered is not available an Wwwiinnova som advisory message shows on the Diagnostic Tool s display 5 If you wish to view definitions for additional DTCs press the ENTER button to return to the DTC Library screen and repeat steps 2 and 3 6 When all desired DTCs have been viewed press the M m button to exit the DTC Library Craftsman 87702 61 Additional Functions VIEWING THE FIRMWARE VERSION ADJUSTMENTS AND SETTINGS VIEWING THE FIRMWARE VERSION The Firmware Version function displays the firmware version bootloader version and database version for the Diagnostic Tool 1
8. button to perform the alternator check m An instructional screen displays Craftsman 87702 57 Additional Functions VIEWING VEHICLE INFORMATION 6 Press the accelerator pedal to raise engine speed to 1500 1700 RPM and maintain the engine speed for 10 Ve ee seconds for 10 sec at 1500 1700 RPM When engine speed is within the required range the alternator test begins A progress screen shows the Engine RPM and Count down time remaining until the test is complete Engine RPM 1640 Alternator test in progress 7 When the alternator check is complete a results screen displays the current Alternator Voltage and indicates whether or not the voltage is within acceptable limits The System Status LEDs provide a PASS FAIL indication as follows m Green PASS Count down 8s Engine RPM 1640 System Voltage Check Alternator Voltage 13 82 V m Yellow Caution LOW m Red FAIL m lf the alternator voltage is less than 9 V the red yellow and green system status O O O SYSTEM STATUS LEDs will flash on and off 8 Press the M m button to return to the Main Menu VIEWING VEHICLE INFORMATION The Diagnostic Tool offers three options for retrieving reference information for the vehicle under test Vehicle ID Available Modules and IPT In use Performance Tracking Retrieving Vehicle ID Information The Vehicle ID function is applicable to model year 2000 and Sr newer OBD2 complia
9. s emissions related system are operating properly and are ready for Inspection and Maintenance testing EPA Environmental Protection Agency EVAP Evaporative Emissions System Fault Code See DTCs Freeze Frame A digital representation of engine and or emissions system conditions present when a fault code was recorded FTP Fuel Tank Pressure Generic Code A DTC that applies to all OBD2 compliant vehicles I M Test Emissions Test Smog Check A functional test of a vehicle to determine if tailpipe emissions are within Federal State Local requirements LCD Liquid Crystal Display LED Light Emitting Diode LTFT Long Term Fuel Trim is a program in the vehicle s computer designed to add or subtract fuel from the vehicle to compensate for operating conditions that vary from the ideal A F ratio long term 72 Craftsman 87702 Glossary GLOSSARY OF TERMS AND ABBREVIATIONS Manufacturer Specific Code A DTC that applies only to OBD2 compliant vehicles made by a specific manufacturer MIL Malfunction Indicator Lamp also referred to as Check Engine light OBD1 On Board Diagnostics Version 1 also referred to as OBD OBD2 On Board Diagnostics Version 2 also referred to as OBD II On Board Computer The central processing unit in the vehicle s computer control system PCM Powertrain Control Module Pending Code A code recorded on the first trip for a
10. Enabling Criteria for one specific Monitor to run and complete ts diagnostic testing An OBD2 Drive Cycle must meet the Enabling Criteria for all Monitors on a particular vehicle to run and complete their diagnostic testing Warm up Cycle Vehicle operation after an engine off period where engine temperature rises at least 40 F 22 C from its temperature before starting and reaches at least 160 F 70 C The PCM uses warm up cycles as a counter to automatically erase a specific code and related data from its memory When no faults related to the original problem are detected within a specified number of warm up cycles the code is erased automatically DIAGNOSTIC TROUBLE CODES DTCs 16 Diagnostic Trouble Codes DTCs are meant to guide you to the proper Diagnostic Trouble service procedure in the vehicle s Codes DTCs are service manual DO NOT replace parts codes that identify a based only on DTCs without first specific problem area consulting the vehicle s service manual for proper testing procedures for that particular system circuit or component DTCs are alphanumeric codes that are used to identify a problem that is present in any of the systems that are monitored by the on board computer PCM Each trouble code has an assigned message that identifies the circuit component or system area where the problem was found OBD2 diagnostic trouble codes are made up of five characters The 1st char
11. normally all Monitors supported by the vehicle have run and performed their self diagnostic testing The vehicle is ready for an Emissions Test Smog Check and there is a good possibility that it can be certified YELLOW LED Determine from the CODE RETRIEVAL PROCEDURE page 33 which of the two possible conditions is causing the yellow LED to light m If a PENDING Diagnostic Trouble Code is causing the yellow LED to light it is possible that the vehicle will be allowed to be tested for emissions and certified Currently most areas states countries will allow an Emissions Test Smog Check to be performed if the only code in the vehicle s computer is a PENDING Diagnostic Trouble Code gt I M MONITOR STATUS 50 00800000 pa 0000060 H No Powertrain DTCs or Freeze Frame Data is presently stored in the vehicle s computer SYSTEM status Q O0 O wm 1 M MONITOR STATUS ni 200000900 Mom UL 0000000 De P0743 Generic Torque Converter Clutch Solenoid Circuit Electrical SYSTEM STATUS O O If the illumination of the Yellow LED is being caused by monitors that have not run their diagnostic testing then the issue of the vehicle being ready for an Emissions Test Smog Check depends on the emissions regulations and laws of your local area Some areas require that all Monitors indicate a Has Run status before they allow an Emissions Test Smog Check to be performed Other areas only req
12. DTC s are presently stored in the vehicles computer is displayed Press the M m button to return to the Main Menu vehicle s computer Press M to exit 3 If more than one code was retrieved press the DTC F button as necessary to display additional codes one at a time Whenever the Scroll function is used to view additional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again 4 When the last retrieved DTC has been displayed and the DTC button is pressed the Diagnostic Tool returns to the Priority Code m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the M m button The Diagnostic Tool returns to the Main Menu screen Ford Mazda Enhanced DTCs Mazda Enhanced DTCs are available for Mazda branded Ford vehicles only When the Diagnostic Tool enters the enhanced mode and Ford is selected if prompted the Ford Enhanced menu displays You may view DTCs for either the Continuous Memory Test KOEO Key On Engine Off Test or KOER Key On Engine Running Test 1 Use the DOWN button to highlight the desired option then press the ENTER button Ford Enhanced A P Select and press 4 When choosing to view KOER Test DTCs start the vehicle s SES engine before making your Press M to exit selection m lf the Diagn
13. F button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Diagnostic Tools communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again 5 When the last retrieved DTC has been displayed and the DTC zs button is pressed the Diagnostic Tool returns to the Priority Code m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the M m button The Diagnostic Tool returns to the Main Menu screen General Motors Isuzu Enhanced DTCs When the Diagnostic Tool enters the enhanced mode and GM is selected if prompted the Diagnostic Tool retrieves enhanced DTCs from the vehicle s computer 1 A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs m If the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the Diagnostic Tool s display Verify the ignition is ON then press the M m button to continue 2 To read the display Refer to DISPLAY FUNCTIONS w on page 9 for a description of LCD display elements m A visible e icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m A visible ab icon indicates that the Diagnostic Tool is linked to communi cating with the vehicle s
14. Monitor or Monitors If the vehicle needs to be driven in order to perform a Trip Drive Cycle ALWAYS have a second person help you One person should drive the vehicle while the other person observes the Monitor icons on the Diagnostic Tool for Monitor RUN status Trying to drive and observe the Diagnostic Tool at the same time is dangerous and could cause a serious traffic accident 4 When a Monitor s Trip Drive Cycle is performed properly the Monitor icon on the Diagnostic Tool s LCD display changes from flashing to solid indicating that the Monitor has run and finished its diagnostic testing m If after the Monitor has run the MIL on the vehicle s dash is not lit and no stored or pending codes associated with that particular Monitor are present in the vehicle s computer the repair was successful m If after the Monitor has run the MIL on the vehicle s dash lights and or a DTC associated with that Monitor is present in the vehicle s computer the repair was unsuccessful Refer to the vehicle s service manual and recheck repair procedures 56 Craftsman 87702 Additional Functions PERFORMING A SYSTEM VOLTAGE CHECK PERFORMING A SYSTEM VOLTAGE CHECK The Diagnostic Tool can perform a check of the vehicle s battery and charging system to ensure the system is operating within acceptable limits You can perform a battery check only or a charging system battery and alternator check To perform a battery check ONL
15. Monitors that are programmed into the vehicle s computer Each of these Monitors is specifically designed to run tests and diagnostics on a specific emissions related component or system Oxygen Sensor Catalytic Converter EGR Valve Fuel System etc to ensure their proper operation Currently there are a maximum of eleven Monitors available for use To learn more about Emissions Inspection and Maintenance M Readiness Monitors see OBD2 MONITORS on page 23 Each Monitor has a specific function to test and diagnose only its designated emissions related component or system The names of the Monitors Oxygen Sensor Monitor Catalyst Monitor EGR Monitor Misfire Monitor etc describe which component or system each Monitor is designed to test and diagnose Craftsman 87702 Using the Diagnostic Tool I M READINESS TESTING Emissions Inspection and Maintenance I M Readiness Monitor Status Information IM Readiness Monitor Status shows which of the vehicle s Monitors have run and completed their diagnosis and testing and which ones have not yet run and completed testing and diagnosis of their designated sections of the vehicle s emissions system m Ifa Monitor was able to meet all the conditions required to enable it to perform the self diagnosis and testing of its assigned engine system it means the monitor HAS RUN m f a Monitor has not yet met all the conditions required for it to perform the self diagnos
16. Sensor 3 Equivalence Ratio EQ Ratio 14 X XXX Bank 1 Sensor 4 Equivalence 66 Craftsman 87702 Generic Global OBD2 PID List Tool Display Unit Value PID Description Ratio EQ Ratio 21 X XXX Bank 2 Sensor 1 Equivalence Ratio EQ Ratio 22 X XXX Bank 2 Sensor 2 Equivalence Ratio EQ Ratio 23 X XXX Bank 2 Sensor 3 Equivalence Ratio EQ Ratio 24 X XXX Bank 2 Sensor 4 Equivalence Ratio EVAP Press Pa XXXX XX Evap System Vapor Pressure fin INN XXX H20 FP Vac kPa XXXX XXX Fuel Rail Pressure relative PSI XXX X toVacuum Fuel Level XXX X Fuel Level Input Fuel Press kPa XXX Fuel Rail Pressure PSI XXX Fuel Press kPa XXXXX Fuel Rail Pressure PSI IXXXX X Fuel Sys 1 OL Fuel System 1 Status Fuel Sys 1 CL Fuel System 1 Status Fuel Sys 1 OL Drive Fuel System 1 Status Fuel Sys 1 OL Fault Fuel System 1 Status Fuel Sys 1 CL Fault Fuel System 1 Status Fuel Sys 2 OL Fuel System 2 Status Fuel Sys 2 CL Fuel System 2 Status Fuel Sys 2 OL Drive Fuel System 2 Status Fuel Sys 2 OL Fault Fuel System 2 Status Fuel Sys 2 CL Fault Fuel System 2 Status IAT C XXX XXX Intake Air Temperature F LOAD Value XXX X Absolute Load Value LTFT B1 XXX X Long Term Fuel Trim Bank 1 LTFT B2 XXX X Long Term Fuel Trim Bank 2 LTFT B3 XXX X Long Term Fuel Trim Bank 3 LTFT B4 XXX X Long Term Fuel Trim Bank 4 MA
17. computer Craftsman 87702 GM Enhanced One moment please Retrieving DTCs GM Enhanced Unable to establish a link with the vehicle Verify the connection at the DLC Verify the ignition is ON and press M DL P1250 en Vacuum reservoir control circuit open 43 Using the Diagnostic Tool VIEWING ENHANCED DTCS m The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved m The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display I M MONITOR STATUS icons are not displayed when w viewing enhanced DTCs GT In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the button to view the additional information m The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no de No Enhanced DTCs are codes are present a No Enhanced presently stored in the DTC s are presently stored in the valles computer vehicle s computer is displayed Press the M m button to return to the GM Enhanced menu Press M to exit 3 If more than one code was retrieved press the DTC F button as necessary to display additional codes one at a time m Whenever the Scroll
18. engine systems operating within the preset reference values On Board Diagnostics First Generation OBD1 With the exception of some 1994 and 1995 vehicles most vehicles from 1982 to 1995 are equipped with some type of first generation On Board Diagnostics Beginning in 1988 California s Air Resources Board CARB and later the Environmental Protection Agency EPA required vehicle manufacturers to include a self diagnostic program in their on board computers The program would be capable of identifying emissions related faults in a system The first generation of Onboard Diagnostics came to be known as OBD1 OBD1 is a set of self testing and diagnostic instructions programmed into the vehicle s on board computer The programs are specifically designed to detect failures in the sensors actuators switches and wiring of the various vehicle emissions related systems If the computer detects a failure in any of these components or systems it lights an indicator on the dashboard to alert the driver The indicator lights only when an emissions related problem is detected The computer also assigns a numeric code for each specific problem that it detects and stores these codes in its memory for later retrieval These codes can be retrieved from the computer s memory with the use of a Diagnostic Tool or a Scan Tool On Board Diagnostics Second Generation OBD2 In addition to performing all the functions of the OBD
19. for proper levels Top off low fluid levels if needed Make sure the air filter is clean and in good condition Make sure all air filter ducts are properly connected Check the air filter ducts for holes rips or cracks Make sure all engine belts are in good condition Check for cracked torn brittle loose or missing belts Make sure mechanical linkages to engine sensors throttle gearshift position transmission etc are secure and properly connected See your vehicle s service manual for locations Check all rubber hoses radiator and steel hoses vacuum fuel for leaks cracks blockage or other damage Make sure all hoses are routed and connected properly Make sure all spark plugs are clean and in good condition Check for damaged loose disconnected or missing spark plug wires Make sure the battery terminals are clean and tight Check for corrosion or broken connections Check for proper battery and charging system voltages Check all electrical wiring and harnesses for proper connection Make sure wire insulation is in good condition and there are no bare wires Make sure the engine is mechanically sound If needed perform a compression check engine vacuum check timing check if applica ble etc Craftsman 87702 31 Preparation for Testing VEHICLE SERVICE MANUALS VEHICLE SERVICE MANUALS Always refer to the manufacturers service manual for your vehicle before performing any test or repair procedures
20. number of the code currently being displayed the total number of codes retrieved m The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display Bl Ae PO100 Coen Mass or Volume Air Flow Circuit I M MONITOR STATUS icons are not displayed when viewing enhanced DTCs Se In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the button to view the additional information m The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No Enhanced DTC s are presently stored in the vehicle s computer is displayed Press the M m button to return to the Toyota Enhanced menu EN No Enhanced DTCs are presently stored in the vehicle s computer Press M to exit Craftsman 87702 Using the Diagnostic Tool VIEWING ABS DTCs 3 If more than one code was retrieved press the DTC F button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again 4 When the last retrieved DTC has been displa
21. standardization requirements These laws required that vehicle manufacturers to equip their new vehicles with devices capable of meeting all of the new emissions standards and regulations It was also decided that an enhanced on board diagnostic system capable of addressing all of these problems was needed This new system is known as On Board Diagnostics Generation Two OBD2 The primary objective of the OBD2 system is to comply with the latest regulations and emissions standards established by CARB and the EPA The Main Objectives of the OBD2 System are m To detect degraded and or failed emissions related components or systems that could cause tailpipe emissions to exceed by 1 5 times the Federal Test Procedure FTP standard m To expand emissions related system monitoring This includes a set of computer run diagnostics called Monitors Monitors perform diagnostics and testing to verify that all emissions related components and or systems are operating correctly and within the manufacturer s specifications m To use a standardized Diagnostic Link Connector DLC in all vehicles Before OBD2 DLCs were of different shapes and sizes m To standardize the code numbers code definitions and language used to describe faults Before OBD2 each vehicle manufacturer used their own code numbers code definitions and language to describe the same faults m To expand the operation of the Malfunction Indicator Lamp MIL m To
22. two trip code If the fault that caused the code to be set is not detected on the second trip the code is automatically erased STFT Short Term Fuel Trim is a program in the vehicle s computer designed to add or subtract fuel from the vehicle to compensate for operating conditions that vary from the ideal A F ratio The vehicle uses this program to make minor fuel adjustments fine tune on a short term basis Trip Drive Cycle Vehicle operation that provides the necessary driving condition to enable a vehicle Monitor to run and complete ts diagnostic testing VECI Vehicle Emission Control Information Decal Craftsman 87702 73 74 Craftsman 87702 Craftsman 87702 75 76 Craftsman 87702 Warranty and Servicing CRAFTSMAN TWO YEAR FULL WARRANTY FOR TWO YEARS from the date of purchase this product is warranted against any defects in material or workmanship A defective product will receive free repair or replacement if repair is unavailable For warranty coverage details visit the web site www craftsman com This TWO YEAR warranty is void if this product is ever used while providing commercial services or if rented to another person for 90 DAY commercial and rental use terms see the Craftsman warranty web page This warranty gives you specific legal rights and you may also have other rights which vary from state to state Sears Brands Management Corporation Hoffman Estates IL 60179 REPLACEMENT P
23. 1 System the OBD2 System has been enhanced with Blah catia Aaa he new Diagnostic Programs These programs closely monitor the functions of various emissions related compo nents and systems as well as other systems and make this information readily available with the proper equipment to the technician for evaluation The California Air Resources Board CARB conducted studies on OBD1 equipped vehicles The information that was gathered from these studies showed the following OBD1 System m A large number of vehicles had deteriorating or degraded emissions related components These components were causing an increase in emissions Craftsman 87702 13 Onboard Diagnostics COMPUTER ENGINE CONTROLS m Because OBD1 systems only detect failed components the degraded components were not setting codes Some emissions problems related to degraded components only occur when the vehicle is being driven under a load The emission checks being conducted at the time were not performed under simulated driving conditions As a result a significant number of vehicles with degraded components were passing Emissions Tests m Codes code definitions diagnostic connectors communication protocols and emissions terminology were different for each manufacturer This caused confusion for the technicians working on different make and model vehicles To address the problems made evident by this study CARB and the EPA passed new laws and
24. 2 1 3 trips 40 PM Filter Monitor Gg 4 2 4 3 trips 40 Craftsman 87702 27 Preparation for Testing PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET The purpose of this form is to help you gather preliminary information on your vehicle before you retrieve codes By having a complete account of your vehicle s current problem s you will be able to systematically pinpoint the problem s by comparing your answers to the fault codes you retrieve You can also provide this information to your mechanic to assist in diagnosis and help avoid costly and unnecessary repairs It is important for you to complete this form to help you and or your mechanic have a clear understanding of your vehicle s problems NAME DATE VIN YEAR MAKE MODEL ENGINE SIZE VEHICLE MILEAGE VIN Vehicle Identification Number found at the base of the windshield on a metallic plate or at the driver door latch area consult your vehicle owner s manual for location TRANSMISSION D Automatic O Manual Please check all applicable items in each category DESCRIBE THE PROBLEM 28 Craftsman 87702 Preparation for Testing PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET WHEN DID YOU FIRST NOTICE THE PROBLEM O Just Started Started Last Week D O Started Last Month O Other LIST ANY REPAIRS DONE IN THE PA
25. 4 V X XXX Bank 2 Sensor 4 O2S B2 S4 mA X XXX Bank 2 Sensor 4 O2S Current mA O2S B2 S4 V V X XXX Bank 2 Sensor 4 02S Voltage O2S Location 7 02811 Oxygen Sensor Bank 1 Sensor 1 O2S Location e 02812 Oxygen Sensor Bank 1 Sensor 2 O2S Location 02813 Oxygen Sensor Bank 1 Sensor 3 O2S Location z 02814 Oxygen Sensor Bank 1 Sensor 4 O2S Location 02521 Oxygen Sensor Bank 2 Sensor 1 O2S Location a 02522 Oxygen Sensor Bank 2 Sensor 1 O2S Location 5 02523 Oxygen Sensor Bank 2 Sensor 3 O2S Location S 02524 Oxygen Sensor Bank 2 Sensor 4 O2S Location 5 02811 Oxygen Sensor Bank 1 Sensor 1 O2S Location 02812 Oxygen Sensor Bank 1 Sensor 2 O2S Location 02821 Oxygen Sensor Bank 2 Sensor 1 O2S Location 02522 Oxygen Sensor Bank 2 Sensor 2 O2S Location 02831 Oxygen Sensor Bank 3 Sensor 1 O2S Location 2 02532 Oxygen Sensor Bank 3 Sensor 2 O2S Location E 02841 Oxygen Sensor Bank 4 Sensor 1 O2S Location S 025842 Oxygen Sensor Bank 4 Sensor 2 68 Craftsman 87702 Generic Global OBD2 PID List Tool Display Unit Value PID Description OBD Support OBD2 OBD Requirements OBD Support OBD OBD Requirements OBD Support OBD and OBD Requirements OBD2 OBD Support OBD1 OBD Requirements OBD Support No OBD OBD Requirements OBD Support EOBD OBD Requirements OBD Support EOBD and OBD Requirements OBD2 O
26. 40 seconds while the vehicle s emissions are measured Emissions tests vary depending on the geographic or regional Sr area in which the vehicle is registered If the vehicle is registered in a highly urbanized area the I M 240 is probably the type of test required If the vehicle is registered in a rural area the stricter dynamometer type test may not be required 1 M Readiness Monitors 52 I M Readiness shows whether the various emissions related systems on the vehicle are operating properly and are ready for Inspection and Maintenance testing State and Federal Governments enacted Regulations Procedures and Emission Standards to ensure that all emissions related components and systems are continuously or periodically monitored tested and diagnosed whenever the vehicle is in operation It also requires vehicle manufacturers to automatically detect and report any problems or faults that may increase the vehicle s emissions to an unacceptable level The vehicle s emissions control system consists of several components or sub systems Oxygen Sensor Catalytic Converter EGR Fuel System etc that aid in reducing vehicle emissions To have an efficient Vehicle Emission Control System all the emissions related components and systems must work correctly whenever the vehicle is in operation To comply with State and Federal Government regulations vehicle manufacturers designed a series of special computer programs called
27. ARTS OBD2 Cable MRP 05 0012 Rev B USB Cable MRP 13 0012 Rev A PC Link CD MRP 93 0330 Rev B Quick Reference Guide MRP 93 0378 Rev B For replacement parts call 1 800 544 4124 Craftsman 87702 77 HABLAMOS ESPA OL SERVICE IN USA WE EMPLOY TECHNICIANS CERTIFIED BY ASE ONLY LET US SHOW YOU THEIR CREDENTIALS CRAFTSMAN Sears Brands Management Corporation Hoffman Estates IL 60179 Instruction MRP 93 0228 Rev C Copyright 2013 IEC All Rights Reserved
28. BD Support EOBD and OBD Requirements OBD OBD Support EOBD OBD Requirements OBD and OBD2 OBD Support JOBD OBD Requirements OBD Support JOBD and OBD Requirements OBD2 OBD Support JOBD and OBD Requirements EOBD OBD Support JOBD OBD Requirements EOBD and OBD2 PTO Status On Off Power Take Off Status Rel TPS XXX X Relative Throttle Position Spark Adv deg XX Ignition Timing Advance 1 Cylinder STFT B1 XXX X Short Term Fuel Trim Bank 1 STFT B1 S1 XXX X Bank 1 Sensor 1 STFT B1 S2 XXX X Bank 1 Sensor 2 STFT B1 S3 XXX X Bank 1 Sensor 3 STFT B1 S4 XXX X Bank 1 Sensor 4 STFT B2 XXX X Short Term Fuel Trim Bank 2 STFT B2 S1 XXX X Bank 2 Sensor 1 STFT B2 S2 XXX X Bank 2 Sensor 2 STFT B2 S3 XXX X Bank 2 Sensor 3 STFT B2 S4 XXX X Bank 2 Sensor 4 STFT B3 XXX X Short Term Fuel Trim Bank 3 STFT B4 XXX X Short Term Fuel Trim Bank 4 Time DTC Cir hrs XXXX XX Time since DTC Cleared min Time Since sec XXXX Time Since Engine Start Start TPS XXX X Absolute Throttle Position TPSB XXX X Absolute Throttle Position B TPSC XXX X Absolute Throttle Position C Craftsman 87702 69 Generic Global OBD2 PID List Tool Display Unit Value PID Description Veh Speed km h XXX XXX Vehicle Speed Sensor mph Warm up DTC XXX Warm ups since DTC Cleared Cir 70 Craftsman 87702 Vehicle Applications ABS VEHICLE APPLICATIONS MAKES COVERED
29. Contact your local car dealership auto parts store or bookstore for availability of these manuals The following companies publish valuable repair manuals Haynes Publications 861 Lawrence Drive Newbury Park California 91320 Phone 800 442 9637 Web www haynes com Mitchell 1 14145 Danielson Street Poway California 92064 Phone 888 724 6742 Web www miproducts com Motor Publications 5600 Crooks Road Suite 200 Troy Michigan 48098 FF Phone 800 426 6867 LEGS Web www motor com FACTORY SOURCES Ford GM Chrysler Honda Isuzu Hyundai and Subaru Service Manuals 32 Helm Inc 14310 Hamilton Avenue Highland Park Michigan 48203 Phone 800 782 4356 Web www helminc com Craftsman 87702 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE CODE RETRIEVAL PROCEDURE Retrieving and using Diagnostic Trouble Codes DTCs for troubleshooting vehicle operation is only one part of an overall diagnostic strategy Never replace a part based only on the DTC definition Each DTC has a set of testing procedures instructions and flow charts that must be followed to confirm the location of the problem This information is found in the vehicle s service manual Always refer to the vehicle s service manual for detailed testing instructions Check your vehicle thoroughly before performing any test See BEFORE YOU BEGIN on page 31 for details Se ALWAYS observe safety precautions whenever working on a ve
30. D display to view DTCs 4 POWER LINK button When the Diagnostic Tool IS NOT connected to a vehicle turns the Diagnostic Tool On and Off When the Diagnostic Tool is connected to a vehicle links the Diagnostic Tool to the vehicle s PCM to retrieve diagnostic data from the Computers memory To turn the Diagnostic Tool On you must press and hold the POWER LINK button for approximately 3 seconds 5 E ABS button When pressed displays the ABS DTCs menu 6 m M button When pressed while linked to a vehicle displays the Main Menu Craftsman 87702 7 Diagnostic Tool Controls CONTROLS AND INDICATORS 7 10 11 12 DOWN button When in MENU mode scrolls DOWN through the menu and submenu selection options When retrieving and viewing DTCs scrolls down through the current display screen to display any additional data GREEN LED Indicates that all engine systems are running normally all Monitors on the vehicle are active and performing their diagnostic testing and no DTCs are present YELLOW LED Indicates there is a possible problem A Pending DTC is present and or some of the vehicle s emission monitors have not run their diagnostic testing RED LED Indicates there is a problem in one or more of the vehicle s systems The red LED is also used to show that DTC s are present DTCs are shown on the Diagnostic Tool s LCD display In this case the Malfunction Indicator
31. Ds Indicates that a permanent code has been set and one or more of the vehicle s monitors has failed its diagnostic testing A permanent DTC can be cleared only by the vehicle s computer following successful completion of the monitor that caused the fault to set If the Red LED or flashing RED and YELLOW LEDs were obtained there is a definite problem present in the system s In these cases you have the following options m Repair the vehicle yourself If you are going to perform the repairs yourself proceed by reading the vehicle service manual and following all its procedures and recommendations m Take the vehicle to a professional to have it serviced The problem s causing the red LED to light must be repaired before the vehicle is ready for an Emissions Test Smog Check related DTCs These DTCs will not command the MIL on since they are not emission related If the Diagnostic Tool retrieves one of these types of codes the MIL will not be commanded on and the Yellow LED on the Diagnostic Tool will be illuminated In most cases these types of codes will not prevent the Emissions Test from being performed Se On some vehicle models the computer will store non emission Using the I M Readiness Monitor Status to Confirm a Repair The I M Readiness Monitor Status function can be used after repair of a fault has been performed to confirm that the repair has been performed correctly and or to check for Monitor Run
32. F g s l XXX XX Air Flow Rate from Mass Air Flow b min IXXXX X Sensor MAP kPa XXX Intake Manifold Absolute Pressure PSI XXX MIL On Time hrs XXXX XX Engine Run Time while MIL ON min Monitor Status ICONS on Monitor Status this Driving Cycle Display 02S B1 S1 V X XXX Bank 1 Sensor 1 02S B1 S1 mA X XXX Bank 1 Sensor 1 O2S Current Craftsman 87702 67 Generic Global OBD2 PID List Tool Display Unit Value PID Description mA 02S B1 S1 V V X XXX Bank 1 Sensor 1 O2S Voltage 02S B1 S2 V X XXX Bank 1 Sensor 2 O2S B1 S2 mA X XXX Bank 1 Sensor 2 O2S Current mA 02S B1 S2 V V X XXX Bank 1 Sensor 2 02S Voltage O2S B1 S3 V X XXX Bank 1 Sensor 3 O2S B1 S3 mA X XXX Bank 1 Sensor 3 O2S Current mA 02S B1 S3 V V X XXX Bank 1 Sensor 3 02S Voltage O2S B1 S4 V X XXX Bank 1 Sensor 4 O2S B1 GA mA X XXX Bank 1 Sensor 4 O2S Current mA 02S B1 S4 V V X XXX Bank 1 Sensor 4 025 Voltage O2S B2 S1 V X XXX Bank 2 Sensor 1 O2S B2 S1 mA X XXX Bank 2 Sensor 1 O2S Current mA 02S B2 S1 V V X XXX Bank 2 Sensor 1 02S Voltage O2S B2 S2 V X XXX Bank 2 Sensor 2 02S B2 S2 mA X XXX Bank 2 Sensor 2 O2S Current mA O2S B2 S2 V V X XXX Bank 2 Sensor 2 02S Voltage 02S B2 S3 V X XXX Bank 2 Sensor 3 O2S B2 S3 mA X XXX Bank 2 Sensor 3 O2S Current mA O2S B2 S3 V V X XXX Bank 2 Sensor 3 O2S Voltage O2S B2 S
33. ITIONAL FUNCTIONS PERFORMING A SYSTEM VOLTAGE CHECK 57 VIEWING VEHICLE INFORMATION ossee 58 USING THE DTC LIBRARY nsensenseneernennnn 60 VIEWING THE FIRMWARE VERSION nsan 62 ADJUSTMENTS AND SETTINGS 62 VIEWING DTCs IN THE TOOL S MEMORY c cece 65 GENERIC GLOBAL OBD2 PID LIST eee 66 VEHICLE APPLICATIONS ABS VEHICLE APPLICATIONS MAKES COVERED nsss 71 GLOSSARY INTRODUCTION iii 72 GLOSSARY OF TERMS AND ABBREVIATIONS 72 WARRANTY AND SERVICING CRAFTSMAN TWO YEAR FULL WARRANTY oee 77 REPLACEMENT PARTS A 77 i Craftsman 87702 Introduction WHAT IS OBD WHAT IS OBD The Enhanced CanOBD2 Diagnostic Tool is designed to work on all OBD2 compliant vehicles All 1996 and newer vehicles cars light trucks and SUVs sold in the United States are OBD2 compliant One of the most exciting improvements in the automobile industry was the addition of on board diagnostics OBD on vehicles or in more basic terms the computer that activates the vehicle s CHECK ENGINE light OBD1 was designed to monitor manufacturer specific systems on vehicles built from 1981 to 1995 Then came the development of OBD2 which is on all 1996 and newer vehicles sold in the U S Like its predecessor OBD2 was adopted as part of a government mandate to lower vehicle emissions But what makes OBD2 unique is its universal application for all late model cars and trucks domestic and import This sophisticate
34. LAY FUNCTIONS on page 9 for a description of LCD display elements m A visible es icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m A visible ab icon indicates that the Diagnostic Tool is linked to communicating with the vehicle s computer m The upper right hand corner of the display shows the number of the code currently being displayed the E total number of codes retrieved P1250 080 Vacuum reservoir control m The Diagnostic Trouble Code DTC circuit open and related code definition are shown in the lower section of the LCD display I M MONITOR STATUS icons are not displayed when LS viewing enhanced DTCs In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the button to view the additional information 42 Craftsman 87702 Using the Diagnostic Tool VIEWING ENHANCED DTCS m The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No Enhanced DTC s are presently stored in the vehicle s computer is displayed Press the M m button to return to the Ford Enhanced menu No Enhanced DTCs are presently stored in the vehicle s computer Press M to exit 4 If more than one code was retrieved press the DTC
35. O At gear engagement roads O With A C operating O Mostly driving rough roads DRIVING HABITS O Mostly city driving D Drive less than 10 miles per day O Highway D Drive 10 to 50 miles per day O Park vehicle inside O Drive more than 50 miles per O Park vehicle outside day GASOLINE USED O 87 Octane O 91 Octane O 89 Octane O More than 91 Octane WEATHER CONDITIONS WHEN PROBLEM OCCURS o 32 55 F 0 13 C O Above 55 F 13 C D Below freezing 32 F 0 C CHECK ENGINE LIGHT DASH WARNING LIGHT O Sometimes ON O Always ON O Never ON PECULIAR SMELLS O Hot O Gasoline O Sulfur rotten egg O Burning oil O Burning rubber D Electrical STRANGE NOISES D Rattle D Squeak O Knock D Other 30 Craftsman 87702 Preparation for Testing BEFORE YOU BEGIN BEFORE YOU BEGIN The Enhanced CanOBD2 Diag nostic Tool aids in monitoring electronic and emissions related faults in your vehicle and retrieving fault codes related to malfunctions in these systems Mechanical problems such as low oil level or damaged hoses wiring or electrical connectors can cause poor engine performance and may also cause a fault code to set Fix any known mechanical problems before performing any test See your vehicle s service manual or a mechanic for more information Check the following areas before starting any test Check the engine oil power steering fluid transmission fluid if applicable engine coolant and other fluids
36. Operator s Manual CRAFTSMAN CanOBD2 Diagnostic Tool Model 87702 CRAFTSMAN 000 fj N wa D gt e wi CanOBD2 A Diagnostic ol CAUTION Before using this product For answers to your questions read this manual and follow all its Safety about this product call 1 800 544 4124 Rules and Operating Instructions Craftsman Help Line 6 a m 6 p m PT 7 days a week Sears Brands Management Corporation Hoffman Estates IL 60179 U S A Visit the Craftsman website www craftsman com Table of Contents INTRODUCTION WHAT IS OBD panosten s 1 YOU CAN DO ITl EE 2 SAFETY PRECAUTIONS SAFEIN EIRSTI earen Eege 3 ABOUT THE DIAGNOSTIC TOOL VEHICLES COVERED niiin sensor seivanieestevtts N 5 BATTERY REPLACEMENT A 6 DIAGNOSTIC TOOL CONTROLS CONTROLS AND INDICATORS 7 DISPLAY FUNCTIONS 0000 eee eeeeee eee tee eeeeteeeeaeteeeeneeeaeeaes 9 ONBOARD DIAGNOSTICS COMPUTER ENGINE CONTROLS EEN 11 DIAGNOSTIC TROUBLE CODES DTCs 16 OBD2 MONITORS cuina il skit 19 PREPARATION FOR TESTING PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET 28 BEFORE YOU BEGIN ssec 31 VEHICLE SERVICE MANUALS 32 USING THE DIAGNOSTIC TOOL CODE RETRIEVAL PROCEDURE 33 VIEWING ENHANCED DTOS eee eee 39 VIEWING ABS DTCS a aaa a ea aapa aA 47 ERASING DIAGNOSTIC TROUBLE CODES DTCs 49 ABOUT REPAIRSOLUTIONS 50 I M READINESS TESTING coocococcccoccnccconononononnonannncnnnnancancnnncnnos 51 ADD
37. PC with the use of optional software see instructions included with the software for more information 10 When the last retrieved DTC has been displayed and the DTC F button is pressed the display returns to the first DTC retrieved 11 Determine engine system s condition by viewing the Diagnostic Tool s LCD display for any retrieved Diagnostic Trouble Codes code definitions Freeze Frame data and interpreting the green yellow and red LEDs m f DTC s were retrieved and you are going to perform the repairs yourself proceed by consulting the Vehicle s Service Repair Manual for testing instructions testing procedures and flow charts related to retrieved code s m f you plan to take the vehicle to a professional to have it serviced complete the PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET on page 28 and take it together with the retrieved codes freeze frame data and LED information to aid in the troubleshooting procedure m To prolong battery life the Diagnostic Tool automatically shuts Off approximately three minutes after it is disconnected from the vehicle The DTCs retrieved Monitor Status and Freeze Frame data if any will remain in the Diagnostic Tool s memory and may be viewed at any time by turning the unit On If the Diagnostic Tool s batteries are removed or if the Diagnostic Tool is re linked to a vehicle to retrieve codes data any prior codes data in its memory are automatically cleared 38 C
38. ST SIX MONTHS PROBLEMS STARTING D No symptoms D Will not crank ENGINE QUITS OR STALLS D No symptoms O Right after starting O When shifting into gear D During steady speed driving IDLING CONDITIONS D No symptoms D Istoo slow at all times O Istoo fast RUNNING CONDITIONS No symptoms Runs rough Lacks power Bucks and jerks Poor fuel economy Hesitates or stumbles on accelerations Do 0 0 0 0 Craftsman 87702 Cranks but will not start Starts but takes a long time Right after vehicle comes to a stop While idling During acceleration When parking Is sometimes too fast or too slow Is rough or uneven Fluctuates up and down Backfires Misfires or cuts out Engine knocks pings or rattles Surges Dieseling or run on 29 Preparation for Testing PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET AUTOMATIC TRANSMISSION PROBLEMS if applicable D No symptoms O Vehicle does not move D Shifts too early or too late when in gear D Changes gear incorrectly D Jerks or bucks PROBLEM OCCURS O Morning D Afternoon D Anytime ENGINE TEMPERATURE WHEN PROBLEM OCCURS D Cold D Warm D Hot DRIVING CONDITIONS WHEN PROBLEM OCCURS O Short less than 2 miles D With headlights on D 2 10 miles O During acceleration O Long more than 10 miles O Mostly driving downhill O Stop and go O Mostly driving uphill O While turning O Mostly driving level O While braking O Mostly driving curvy
39. Status Use the following procedure to determine I M Readiness Monitor Status 1 Using retrieved Diagnostic Trouble Codes DTCs and code definitions as a guide and following manufacturer s repair procedures repair the fault or faults as instructed Craftsman 87702 55 Using the Diagnostic Tool I M READINESS TESTING 2 After the fault or faults have been repaired connect the Diagnostic Tool to the vehicle s DLC and erase the code or codes from the vehicle s computer memory m See page 47 for procedures for ERASING DIAGNOSTIC TROUBLE CODES DTCs from the vehicle s on board computer m Write the codes down on a piece of paper for reference before erasing 3 Afterthe erase procedure is performed most of the Monitor icons on the Diagnostic Tool s LCD display will be flashing Leave the Diagnostic Tool connected to the vehicle and perform a Trip Drive Cycle for each flashing Monitor Misfire Fuel and Comprehensive Component Monitors run continuously and their icons will always be on solid even after the erase function is performed m Each DTC is associated with a specific Monitor Consult the vehicle s service manual to identify the Monitor or Monitors associated with the faults that were repaired Follow the manufacturer s procedures to perform a Trip Drive Cycle for the appropriate Monitors m While observing the Monitor icons on the Diagnostic Tool s LCD display perform a Trip Drive Cycle for the appropriate
40. The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory 24 Craftsman 87702 Onboard Diagnostics OBD2 MONITORS O NOx Aftertreatment Monitor NOx aftertreatment is based on a catalytic converter support that has been coated with a special washcoat containing zeolites NOx Aftertreatment is designed to reduce oxides of nitrogen emitted in the exhaust stream The zeolite acts as a molecular sponge to trap the NO and NO2 molecules in the exhaust stream In some implementations injection of a reactant before the aftertreatment purges it NO2 in particular is unstable and will join with hydrocarbons to produce H2O and N2 The NOx Aftertreatment Monitor monitors the function of the NOx aftertreatment to ensure that tailpipe emissions remain within acceptable limits The NOx Aftertreatment Monitor is supported by compression ignition vehicles only The NOx Aftertreatment Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer Commande the MIL On and saves the code in its long term memory Boost Pressure System Monitor The boost pressure system serves to increase the pressure produced in
41. Tool VEHICLES COVERED VEHICLES COVERED The Enhanced CanOBD2 Diagnostic Tool is designed to work on all OBD2 compliant vehicles All 1996 and newer vehicles cars and light trucks sold in the United States are OBD2 compliant Federal law requires that all 1996 and newer cars and light SP trucks sold in the United States must be OBD2 compliant this includes all Domestic Asian and European vehicles Some 1994 and 1995 vehicles are OBD2 compliant To find out if a 1994 or 1995 vehicle is OBD2 compliant check the following 1 The Vehicle Emissions Control Information VECI Label This label is located under the hood or by the radiator of most vehicles If the vehicle is OBD2 compliant the label will state OBD Il Certified VEHICLE EMISSION CONTROL INFORMATION ENGINE FAMILY EFN2 6YBT2BA OBD II DISPLACEMENT 2 6L CERTIFIED 2 VEHICLE THIS VEHICLE CONFORMS TO U S EPA AND STATE A MANUFACTURER OF CALIFORNIA REGULATIONS APPLICABLE TO 1999 MODEL YEAR NEW TLEV PASSENGER CARS OBD Il REFER TO SERVICE MANUAL FOR ADDITIONAL INFORMATION TUNE UP CONDITIONS NORMAL OPERATING ENGINE TEMPERATURE CERTIFIED ACCESSORIES OFF COOLING FAN OFF TRANSMISSION IN NEUTRAL EXHAUST EMISSIONS STANDARDS STANDARD CATEGORY CERTIFICATION IN USE TLEV TLEV INTERMEDIATE SPARK PLUG TYPE NGKBPRE 111 CATALYST GAP 1 1MM 2 Government Regulations require that all OBD2 compliant vehicles must have a common sixteen pin Dat
42. Y 1 4 With the Diagnostic Tool on the Code Retrieval screen press and release the M m button m The Main Menu displays Use the DOWN button to highlight System Voltage Check then press the ENTER button Main Menu 2 6 Select and press Enhanced DTCs Vehicle Info DTC Library m A One moment please message displays while the Diagnostic Tool retrieves the requested information When the battery check is complete a results screen displays the current Battery Voltage and indicates whether or not the voltage is within acceptable limits The System Status LEDs provide a PASS FAIL indication as follows m Green PASS m Yellow Caution LOW m Red FAlL Battery Voltage 12 3 V Battery test is PASS Press the M m button to return to the Main Menu To perform a charging system check Main Menu 2 6 1 Start the engine 2 With the Diagnostic Tool on the Code Retrieval screen press and release the M m button Select and press e The Main Menu displays Vehicle Info 3 Use the DOWN button to highlight DTC Library System Voltage Check then press the ENTER button A One moment please message displays while the Diagnostic Tool Battery Voltage 12 3 V retrieves the requested information Press the button to 4 When the battery check is complete a perform Alternator test results screen displays the current Battery Voltage 5 Press the ENTER
43. a Link Connector DLC Some 1994 and 1995 vehicles have 16 pin connectors but are LS not OBD2 compliant Only those vehicles with a Vehicle Emissions Control Label stating OBD Il Certified are OBD2 compliant Data Link Connector DLC Location The 16 pin DLC is usually located under the instrument panel dash within 12 inches 300 mm of center of the panel on the drivers side of most vehicles It should be easily accessible and visible from a kneeling position outside the vehicle with the door open SC OF DASH OF DASH Craftsman 87702 5 About the Diagnostic Tool BATTERY REPLACEMENT Se On some Asian and European vehicles the DLC is located behind the ashtray the ashtray must be removed to access it or on the far left corner of the dash If the DLC cannot be located consult the vehicle s service manual for the location BATTERY REPLACEMENT Replace batteries when the battery symbol as is visible on display and or the 3 LEDS are all lit and no other data is visible on screen 1 2 3 4 Locate the battery cover on the back of the Diagnostic Tool Slide the battery cover off use your fingers Replace batteries with two AA size batteries for longer life use Alkaline type batteries Reinstall the battery cover on the back of the Diagnostic Tool Adjustments After Battery Installation The first time the unit is turned on you must selec
44. acter is a letter B C P or U It identifies the main system where the fault occurred Body Chassis Powertrain or Network The 2nd character is a numeric digit O thru 3 It identifies the type of code Generic or Manufacturer Specific Generic DTCs are codes that are used by all vehicle manu facturers The standards for generic DTCs as well as their definitions are set by the Society of Automotive Engineers SAE Craftsman 87702 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs Manufacturer Specific DTCs are codes that are controlled by the E vehicle manufacturers The Federal Government does not require vehicle manufacturers to go beyond the standardized generic DTCs in order to comply with the new OBD2 emissions standards However manufacturers are free to expand beyond the standardized codes to make their systems easier to diagnose m The 3rd character is a letter or a numeric digit 0 thru 9 A thru F It identifies the specific system or sub system where the problem is located m The 4th and 5th characters are letters or numeric digits 0 thru 9 A thru F They identify the section of the system that is malfunctioning OBD2 DTC EXAMPLE P0201 Injector Circuit Malfunction Cylinder 1 Body P0201 T Chassis Powertrain Network Generic Manufacturer Specific Generic P Codes and Manufacturer Specific B C and U Codes Includes both Generic and Manufacturer Specifi
45. are shown on the Diagnostic Tool s display Use the DOWN button to view the entire list When you have finished viewing the statistics press the M m button to exit USING THE DTC LIBRARY The DTC Library function lets you search the library of OBD2 DTC definitions 1 60 Main Menu 3 6 Select and press Enhanced DTCs System Voltage Check Vehicle Info DTC Library Vehicle Info Menu Select and press 4 4 Vehicle ID Available Modules Press M to exit IPT This vehicle does not support IPT data Press M to exit IPT Press M to exit IGNCNTR CATCOMP1 CATCOND1 While linked to a vehicle press and release the M m button Craftsman 87702 Additional Functions USING THE DTC LIBRARY m The Main Menu displays 2 Use the DOWN button to highlight Main Menu 4 6 i i Select and iH DTC Library in the Menu then press select and press the ENTER button System Voltage Check Vehicle Info m The Enter DTC screen displays The screen shows the code P0001 with the P highlighted 3 Use the DOWN button as necessary DTC Library to scroll to the desired DTC type DTC P0001 P Powertrain U Network B Body Ge C Chassis then press the DTC F Press M to exit button m The selected character displays solid and the next character is highlighted 4 Select the remaining characters in the DTC in the same way pressing the DTC
46. ased Permanent DTCs ARE NOT erased by the ERASE function If you plan to take the vehicle to a Service Center for repair DO NOT erase the codes from the vehicle s computer If the codes are erased valuable information that might help the technician troubleshoot the problem will also be erased Erase DTCs from the computer s memory as follows When DTCs are erased from the vehicle s computer memory the Sr IM Readiness Monitor Status program resets the status of all Monitors to a not run flashing condition To set all of the Monitors to a DONE status an OBD2 Drive Cycle must be performed Refer to your vehicle s service manual for information on how to perform an OBD2 Drive Cycle for the vehicle under test Se The Diagnostic Tool must be connected to the vehicle s DLC to erase the codes from the computer s memory If you press the ERASE ES button when the Diagnostic Tool is not connected to the vehicle s DLC the erase instruction screen displays 1 If not connected already connect the Diagnostic Tool to the vehicle s DLC and turn the ignition On If the Diagnostic Tool is already connected and linked to the vehicle s computer proceed directly to step 3 If not continue to step 2 2 Perform the Code Retrieval procedure as described on page 33 m To erase OBD2 DTCs Wait until the codes are displayed on the Diagnostic Tools LCD and then proceed to step 3 Craftsman 87702 49 Using the Diagnosti
47. ayed DTC is an ABS code PENDING icon Indicates the currently displayed DTC is a Pending code MIL icon Indicates the status of the Malfunction Indicator Lamp MIL The MIL icon is visible only when a DTC has commanded the MIL on the vehicle s dashboard to light Code Number Sequence The Diagnostic Tool assigns a sequence number to each DTC that is present in the computer s memory starting with 01 This number indicates which code is currently displayed Code number 01 is always the highest priority code and the one for which Freeze Frame data has been stored Sr If 01 is a Pending code there may or may not be Freeze Frame data stored in memory Code Enumerator Indicates the total number of codes retrieved from the vehicle s computer Craftsman 87702 Onboard Diagnostics COMPUTER ENGINE CONTROLS COMPUTER ENGINE CONTROLS The Introduction of Electronic Engine Controls Electronic Computer Control Systems make it possible for vehicle manufacturers to comply with the tougher emissions and fuel efficiency standards mandated by State and Federal Governments As a result of increased air pollution smog in large cities such as Los Angeles the California Air Resources Board CARB and the Environmental Protection Agency EPA set new regulations and air pollution standards to deal with the problem To further complicate matters the energy crisis of the
48. c Codes Identifies the system where the problem is located P Code systems are listed below B C and U Code systems will vary 0 Fuel and Air Metering Auxiliary Emission Controls 1 Fuel and Air Metering 2 Fuel and Air Metering injector circuit malfunction only 3 Ignition System or Misfire 4 Auxiliary Emission Control System 5 Vehicle Speed Control and Idle Control System 6 Computer Output Circuits 7 Transmission 8 Transmission 9 Transmission A Hybrid Propulsion B Hybrid Propulsion C Hybrid Propulsion Identifies what section of the system is malfunctioning Craftsman 87702 17 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs DTCs and MIL Status When the vehicle s on board computer detects a failure in an emissions related component or system the computers internal diagnostic program assigns a diagnostic trouble code DTC that points to the system and subsystem where the fault was found The diagnostic program saves the code in the computers memory It records a Freeze Frame of condi tions present when the fault was found and lights the Malfunction Indicator Lamp MIL Some faults require detection for two trips in a row before the MIL is turned on The Malfunction Indicator Lamp MIL is the accepted term used to describe the lamp on the dashboard that lights to warn the driver that an emissions related fault has been found Some
49. c Tool ABOUT REPAIRSOLUTIONSO m To erase Enhanced or ABS DTCs Perform the Code Retrieval procedure for Enhanced DTCs as described on page 39 or for ABS DTCs as described on page 47 Wait until the codes are displayed on the Diagnostic Tool s LCD and then proceed to step 3 3 Press and release the ERASE button A confirmation message shows on the LCD display m f you are sure you want to proceed use the DOWN button to highlight YES then press the Erasing clears all DTCs ENTER a button Freeze Frame Data Select and press If you do not want to continue with the erase process use the DOWN button to highlight NO then press the ENTER button NO 4 If you chose to erase DTCs a progress screen displays while the erase function is in progress Erase was successful m f the erase was successful a confirmation message shows on the display Press the POWER LINK button to re link the Tool to the vehicle m lf the erase was not successful an advisory message shows on the display indicating the erase request was sent to the vehicle s computer Erase Request Sent Erasing DTCs does not fix the problem s that caused the code s 7 to be set If proper repairs to correct the problem that caused the code s to be set are not made the code s will appear again and the check engine light will illuminate as soon as the vehicle is driven long enough for its Monitors to complete their tes
50. cle does not have any Diagnostic Trouble Codes present with the exception of PENDING Diagnostic Trouble Codes 2 In addition to the requirement that no Diagnostic Trouble Codes be present some areas also require that all the Monitors that a particular vehicle supports indicate a Has Run status condition before an Emissions Check may be performed 3 Other areas may only require that some but not all Monitors indicate a Has Run status before an Emissions Test Smog Check may be performed Craftsman 87702 53 Using the Diagnostic Tool I M READINESS TESTING Monitors with a Has Run status indicate that all the required conditions they needed to perform diagnosis and testing of their assigned engine area system have been met and all diagnostic testing has completed successfully Monitors with a Has Not Run status have not yet met the Sr conditions they need to perform diagnosis and testing of their assigned engine area system and have not been able to perform diagnostic testing on that system The green yellow and red LEDs provide a quick way to help you determine if a vehicle is ready for an Emissions Test Smog Check Follow the instructions below to perform the Quick Check Perform the CODE RETRIEVAL PROCEDURE as described on page 33 then interpret the LED indications as follows Interpreting I M Readiness Test Results 1 GREEN LED Indicates that all engine 54 systems are OK and operating
51. cs OBD2 MONITORS Non Continuous Monitors The other twelve Monitors are non continuous Monitors Non continuous Monitors perform and complete their testing once per trip The non continuous Monitors are Oxygen Sensor Monitor D Oxygen Sensor Heater Monitor Q Catalyst Monitor Heated Catalyst Monitor O EGR System Monitor EVAP System Monitor Secondary Air System Monitor The following Monitors became standard beginning in 2010 The majority of vehicles produced before this time will not support these Monitors O NMHC Monitor O NOx Adsorber Monitor O Boost Pressure System Monitor Exhaust Gas Sensor Monitor PM Filter Monitor The following provides a brief explanation of the function of each Monitor cc Comprehensive Component Monitor CCM This Monitor continuously checks all inputs and outputs from sensors actuators switches and other devices that provide a signal to the computer The Monitor checks for shorts opens out of range value functionality and rationality Rationality Each input signal is compared against all other 7 inputs and against information in the computer s memory to see if it makes sense under the current operating conditions Example The signal from the throttle position sensor indicates the vehicle is in a wide open throttle condition but the vehicle is really at idle and the idle condition is confirmed by the signals from all other sensors Based o
52. d program in the vehicle s main computer system is designed to detect failures in a range of systems and can be accessed through a universal OBD2 port which is usually found under the dashboard For all OBD systems if a problem is found the computer turns on the CHECK ENGINE light to warn the driver and sets a Diagnostic Trouble Code DTC to identify where the problem occurred A special diagnostic tool such as the Enhanced CanOBD2 Diagnostic Tool is required to retrieve these codes which consumers and professionals use as a starting point for repairs The Enhanced CanOBD2 Diagnostic Tool provides the additional ability to retrieve enhanced DTCs from most Chrysler Jeep Ford Mazda GM Isuzu Honda Acura and Toyota Lexus vehicles as well as Anti Lock Brake System ABS DTCs and vehicle information The types of enhanced data available depends on the vehicle make To learn more about vehicle Computer Control Systems and OBD2 see COMPUTER ENGINE CONTROLS on page 15 Craftsman 87702 1 You Can Do It EASY TO USE EASY TO VIEW EASY TO DEFINE Easy To Use m Connect the Diagnostic Tool to the vehicle s test connector m Turn the ignition key On m The Diagnostic Tool automatically links to the vehicle s computer Easy To View m The Diagnostic Tool retrieves stored codes Freeze Frame data and System 206660000 DL Status 10090000 P0743 Generic Codes I M Monitor Status and Freeze To
53. e vehicle s computer When the retrieval process is completed the vehicle ID information is shown on the Diagnostic Tool s display Use the DOWN O button to view the entire list When you have finished viewing the retrieved vehicle ID information press the M m button to exit Viewing Available Modules Vehicl Module 20 Cal ID HYBGH31x HEX CVN E5 6C 02 6E Press M to exit hicle ID VIN 2G2G522QPT3200012 The Diagnostic Tool can retrieve a list of modules supported by the vehicle under test 1 While linked to a vehicle press the M m button m The Main Menu displays Use the DOWN button to highlight Vehicle Info then press the ENTER button m The Vehicle Info Menu displays Use the DOWN button to highlight Available Modules then press the ENTER button A One moment please message displays while the requested information is retrieved from the vehicle s computer When the retrieval process is completed a complete list of modules supported by the vehicle under test is shown on the Diagnostic Tools display Use the DOWN O button to view the entire list Craftsman 87702 Main Menu Select and press Enhanced DTCs System Voltage Check DTC Library Vehicle Info Menu Select and press Vehicle ID IPT Press M to exit Available Modules Protocol CAN Module 7E8 Press M to exit 3 6 59 Additional Functions USING THE DTC LIBRARY 6 W
54. early 1970s caused a sharp increase in fuel prices over a short period As a result vehicle manufacturers were not only required to comply with the new emissions standards they also had to make their vehicles more fuel efficient Most vehicles were required to meet a miles per gallon MPG standard set by the U S Federal Government Precise fuel delivery and spark timing are needed to reduce vehicle emissions Mechanical engine controls in use at the time such as ignition points mechanical spark advance and the carburetor responded too slowly to driving conditions to properly control fuel delivery and spark timing This made it difficult for vehicle manufacturers to meet the new standards A new Engine Control System had to be designed and integrated with the engine controls to meet the stricter standards The new system had to m Respond instantly to supply the proper mixture of air and fuel for any driving condition idle cruising low speed driving high speed driving etc Calculate instantly the best time to ignite the air fuel mixture for maximum engine efficiency m Perform both these tasks without affecting vehicle performance or fuel economy Vehicle Computer Control Systems can perform millions of calculations each second This makes them an ideal substitute for the slower mechanical engine controls By switching from mechanical to electronic engine controls vehicle manufacturers are able to control fuel deliver
55. ed Select and press Continuous Memory Test press the ENTER button to view the selected information or press M m button to exit and return to the Main Menu If a Manufacturer specific DTC was retrieved and the manufacturer selected for the code was not Chrysler Jeep Ford Mazda General Motors Isuzu Honda Acura Toyota or Lexus An advisory message displays Press the M m button to return to the Main Menu Enhanced data is not available for your vehicle Craftsman 87702 ES This vehicle does not support Enhanced communication 39 Using the Diagnostic Tool VIEWING ENHANCED DTCS Refer to the appropriate paragraph to view enhanced DTCs for your vehicle m Chrysler Jeep Enhanced DTCs page 40 Ford Mazda Enhanced DTCs page 41 GM Isuzu Enhanced DTCs page 43 Honda Acura Enhanced DTCs page 44 Toyota Lexus Enhanced DTCs page 46 Chrysler Jeep Enhanced DTCs When the Diagnostic Tool enters the enhanced mode and Chrysler is selected if prompted the Diagnostic Tool retrieves enhanced DTCs from the vehicle s computer 1 A One moment please message displays while the Diagnostic Tool Chrysler Enhanced retrieves the selected DTCs One moment please Retrieving DTCs m lf the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the Diagnostic Tool s display Verify the ignition
56. eeze Frame data will also be erased OBD2 MONITORS To ensure the correct operation of the various emissions related components and systems a diagnostic program was developed and installed in the vehicle s on board computer The program has several procedures and diagnostic strategies Each procedure or diagnostic strategy is made to monitor the operation of and run diagnostic tests on a specific emissions related component or system These tests ensure the system is running correctly and is within the manufacturers specifications On OBD2 systems these procedures and diagnostic strategies are called Monitors Currently fifteen Monitors are supported by OBD2 systems Additional monitors may be added as a result of Government regulations as the OBD2 system grows and matures Not all vehicles support all fifteen Monitors Additionally some Monitors are supported by spark ignition vehicles only while others are supported by compression ignition vehicles only Monitor operation is either Continuous or Non Continuous depending on the specific monitor Continuous Monitors Three of these Monitors are designed to constantly monitor their associated components and or systems for proper operation Continuous Monitors run constantly when the engine is running The Continuous Monitors are Q Comprehensive Component Monitor CCM O Misfire Monitor Q Fuel System Monitor Craftsman 87702 19 Onboard Diagnosti
57. emperature sensors throttle position sensors fuel injectors etc Sensors and switches are input devices They provide signals representing current engine operating conditions to the computer Actuators are output devices They perform actions in response to commands received from the computer The on board computer receives information inputs from sensors and switches located throughout the engine These devices monitor critical engine conditions such as coolant temperature engine speed engine load throttle position air fuel ratio etc The computer compares the values received from these sensors with its preset reference values and makes corrective actions as needed so that the sensor values always match the preset reference values for the current driving condition The computer makes adjustments by commanding other devices such as the fuel injectors idle air control EGR valve or Ignition Module to perform these actions TYPICAL COMPUTER OUTPUT DEVICES CONTROL SYSTEM Fuel Injectors Idle Air Control EGR Valve Ignition Module Ba IN On Board Computer INPUT DEVICES Coolant Temperature Sensor Throttle Position Sensor Fuel Injectors INPUT DEVICES Oxygen Sensors 12 Craftsman 87702 Onboard Diagnostics COMPUTER ENGINE CONTROLS Vehicle operating conditions are constantly changing The computer continuously makes adjustments or corrections especially to the air fuel mixture and spark timing to keep all the
58. erter etc A specific set of conditions or driving procedures must be met before the computer can command a Monitor to run tests on its related system These conditions are known as Enabling Criteria The requirements and procedures vary for each Monitor Some Monitors only require the ignition key to be turned On for them to run and complete their diagnostic testing Others may require a set of complex procedures such as starting the vehicle when cold bringing it to operating temperature and driving the vehicle under specific conditions before the Monitor can run and complete its diagnostic testing Monitor Has Has Not Run The terms Monitor has run or Monitor has not run are used throughout this manual Monitor has run means the PCM has commanded a particular Monitor to perform the required diagnostic testing on a system to ensure the system is operating correctly within factory specifications The term Monitor has not run means the PCM has not yet commanded a particular Monitor to perform diagnostic testing on its associated part of the emissions system m Trip A Trip for a particular Monitor requires that the vehicle is being driven in such a way that all the required Enabling Criteria for the Monitor to run and complete its diagnostic testing are met The Trip Drive Cycle for a particular Monitor begins when the ignition key is turned On It is successfully c
59. est for leaks The computer runs this Monitor once per trip The EVAP Monitor is supported by spark ignition vehicles only The EVAP Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the PCM commands the MIL On and saves the code in its long term memory D Oxygen Sensor Heater Monitor The Oxygen Sensor Heater Monitor tests the operation of the oxygen sensor s heater There are two modes of operation on a computer controlled vehicle open loop and closed loop The vehicle operates in open loop when the engine is cold before it reaches normal operating temperature The vehicle also goes to open loop mode at other times such as heavy load and full throttle conditions When the vehicle is running in open loop the oxygen sensor signal is ignored by the computer for air fuel mixture corrections Engine efficiency during open loop operation is very low and results in the production of more vehicle emissions Closed loop operation is the best condition for both vehicle emissions and vehicle operation When the vehicle is operating in closed loop the computer uses the oxygen sensor signal for air fuel mixture corrections In order for the computer to enter closed loop operation the oxygen sensor must reach a temperature o
60. f at least 600 F The oxygen sensor heater helps the oxygen sensor reach and maintain its minimum operating temperature 600 F more quickly to bring the vehicle into closed loop operation as soon as possible The Oxygen Sensor Heater Monitor is supported by spark ignition vehicles only The Oxygen Sensor Heater Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory Oxygen Sensor Monitor The Oxygen Sensor monitors how much oxygen is in the vehicle s exhaust It generates a varying voltage of up to one volt based on how much oxygen is in the exhaust gas and sends the signal to the computer The computer uses this signal to make corrections to the air fuel mixture If the exhaust gas has a large amount of oxygen a lean air fuel mixture the oxygen sensor generates a low voltage signal If the exhaust gas has very little oxygen a rich mixture condition the oxygen sensor generates a high voltage signal A 450mV signal indicates the most efficient and least polluting air fuel ratio of 14 7 parts of air to one part of fuel The oxygen sensor must reach a temperature of at least 600 650 F and the engine must reach normal operating tempera
61. function is used to view additional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again 4 When the last retrieved DTC has been displayed and the DTC button is pressed the Diagnostic Tool returns to the Priority Code m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the M m button The Diagnostic Tool returns to the Main Menu screen Honda Acura Enhanced DTCs When the Diagnostic Tool enters the enhanced mode and Honda is selected if prompted the Diagnostic Tool retrieves enhanced DTCs from the vehicle s SE computer Honda Enhanced 1 A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs m lf the Diagnostic Tool fails to link to EE El the vehicle s computer a Linking with the vehicle Verify the Failed message shows on the Eeer a S s erify the ignition is ON Diagnostic Tool s display and press M 44 Craftsman 87702 Using the Diagnostic Tool VIEWING ENHANCED DTCS Verify the ignition is ON then press the M m button to continue 2 To read the display Refer to DISPLAY FUNCTIONS on page 9 for a description of LCD display elements m A visible e icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m A visible ab icon indicates that
62. hen you have finished viewing the list of available modules press Viewing In use Performance Tracking IPT the M m button to exit The Diagnostic Tool can retrieve In use Performance Tracking IPT statistics for monitors supported by the vehicle under test Two values are returned for each monitor the number of times that all conditions necessary for a specific monitor to detect a malfunction have been encountered XXXCOND and the number of times that the vehicle has been operated under the specific conditions for the monitor XXXCOMP Statistics are also provided for the number of times the vehicle has been operated in OBD monitoring conditions OBDCOND and the number of times the vehicle s engine has been started IGNCNTR 1 While linked to a vehicle press the M button m The Main Menu displays Use the DOWN button to highlight Vehicle Info then press the ENTER button m The Vehicle Info Menu displays Use the DOWN button to highlight IPT then press the ENTER button A One moment please message displays while the requested information is retrieved from the vehicle s computer m f In use Performance Tracking is not supported by the vehicle under test an advisory message shows on the Diagnostic Tool s display Press the M m button to exit When the retrieval process is completed In use Performance Tracking statistics for monitors supported by the vehicle under test
63. hicle See SAFETY FIRST on page 3 for more information 1 Turn the ignition off 2 Locate the vehicle s 16 pin Data Link Connector DLC See page 5 for connector location Se Some DLCs have a plastic cover that must be removed before connecting the Diagnostic Tool cable connector Se If the Diagnostic Tool is ON turn it OFF by pressing the POWER LINK button BEFORE connecting the Diagnostic Tool to the DLC 3 Connect the Diagnostic Tool cable connector to the vehicle s DLC The cable connector is keyed and will only fit one way m f you have problems connecting the cable connector to the DLC rotate the connector 180 and try again m f you still have problems check the DLC on the vehicle and on the Diagnostic Tool Refer to your vehicle s service manual to properly check the vehicle s DLC 4 When the Diagnostic Tools cable connector is properly connected to the vehicle s DLC the unit automatically One WEE turns ON and links to the vehicle s on i er Battery voltage 13 2V board computer Detecting the Protocol 1509141 Craftsman 87702 33 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE 34 If the unit does not power on automatically when connected to the vehicle s DLC connector it usually indicates there is no power present at the vehicle s DLC connector Check your fuse panel and replace any burned out fuses If replacing the fuse s does not correct the problem con
64. iagnostic Trouble Codes system condition using the LCD display and the green yellow and red LEDs The green yellow and red LEDs are used with the LCD display as visual aids to make it easier to determine engine system conditions Craftsman 87702 35 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE Green LED Indicates that all engine systems are OK and operating normally All monitors supported by the vehicle have run and performed their diagnostic testing and no trouble codes are present A zero will show on the Diagnostic Tool s LCD display and all Monitor icons will be solid Yellow LED Indicates one of the following conditions A PENDING CODE IS PRE SENT If the yellow LED is _ UM MONITOR STATUS 0080000900 000000 No Powertrain DTCs or Freeze Frame Data is presently stored in the vehicle s computer SYSTEM status Q O0 O I M MONITOR STATUS 3000000 P0743 Generic Torque Converter Clutch Solenoid Circuit Electrical illuminated it may indicate a Pending code is present Check the Diagnostic Tools LCD display for confirmation A Pending code is confirmed by the presence of a numeric code and the word PENDING on the Diagnostic Tool s LCD display 988830 00 B MONITOR NOT RUN ltreeze frame Data is STATUS If the Diagnostic EE DES Tools LCD display shows a zero indicating there are no DTC s present in the vehicle s computer memory but the yellow LED
65. ic Global OBD2 PID List The following is a list of Generic Global PIDs and their descriptions Tool Display Unit Value PID Description ACC Pedal D XXX X Accelerator Pedal Position D ACC Pedal E XXX X Accelerator Pedal Position E ACC Pedal F XXX X Accelerator Pedal Position F Air Status UPS DNS Commanded Secondary Air Status OFF Ambient C XXX Ambient Air Temperature F Aux Input On Off Auxiliary Input Status Status BARO kPa XXX Barometric Pressure inHg XX X Calc LOAD XXX X Calculated LOAD Value CAT Temp 11 C XXXX X Catalyst Temperature Bank 1 SE Sensor 1 CAT Temp 12 C XXXX X Catalyst Temperature Bank 1 F Sensor 2 CAT Temp 21 C XXXX X Catalyst Temperature Bank 2 F Sensor 1 CAT Temp 22 C XXXX X Catalyst Temperature Bank 2 F Sensor 2 Command XXX X Commanded EGR EGR Command XXX X Commanded Evaporative Purge EVAP Command XXX X Commanded Throttle Actuator TAC Dist DTC Clr km XXXXX Distance since DTC Cleared mile Dist MIL ON km XXXXX Distance Traveled while MIL ON mile s ECT C XXX XXX Engine Coolant Temp F ECU Volts V XX XXX Control Module Voltage EGR Error XXX X EGR Error Eng RPM min XXXXX Engine RPM EQ Ratio X XXX Commanded Equivalence Ratio EQ Ratio 11 X XXX Bank 1 Sensor 1 Equivalence Ratio EQ Ratio 12 X XXX Bank 1 Sensor 2 Equivalence Ratio EQ Ratio 13 X XXX Bank 1
66. ilure is found on the second consecutive trip the MIL is ordered On Freeze Frame data is saved in the computer s memory m If the failure is not found on the second Trip the Pending DTC is erased from the computer s memory The MIL will stay lit for both Type A and Type B codes until one of the following conditions occurs 18 Craftsman 87702 Onboard Diagnostics OBD2 MONITORS m lf the conditions that caused the MIL to light are no longer present for the next three trips in a row the computer automatically turns the MIL Off if no other emissions related faults are present However the DTCs remain in the computer s memory as a history code for 40 warm up cycles 80 warm up cycles for fuel and misfire faults The DTCs are automatically erased if the fault that caused them to be set is not detected again during that period m Misfire and fuel system faults require three trips with similar conditions before the MIL is turned Off These are trips where the engine load RPM and temperature are similar to the conditions present when the fault was first found After the MIL has been turned off DTCs and Freeze Frame data stay in the computer s memory m Erasing the DTCs from the computer s memory can also turn off the MIL See ERASING DIAGNOSTIC TROUBLE CODES DTCs on page 49 before erasing codes from the computers memory If a Diagnostic Tool or Scan Tool is used to erase the codes Fr
67. in its long term memory Heated Catalyst Monitor Operation of the heated catalytic converter is similar to the catalytic converter The main difference is that a heater is added to bring the catalytic converter to its operating temperature more quickly This helps reduce emissions by reducing the converter s down time when the engine is cold The Heated Catalyst Monitor performs the same diagnostic tests as the catalyst Monitor and also tests the catalytic converter s heater for proper operation The Heated Catalyst Monitor is supported by spark ignition vehicles only This Monitor is also a Two Trip Monitor O Exhaust Gas Recirculation EGR Monitor The Exhaust Gas Recirculation EGR system helps reduce the formation of Oxides of Nitrogen during combustion Temperatures above 2500 F cause nitrogen and oxygen to combine and form Oxides of Nitrogen in the combustion chamber To reduce the formation of Oxides of Nitrogen combustion temperatures must be kept below 2500 F The EGR system recirculates small amounts of exhaust gas back into the intake manifold where it is mixed with the incoming air fuel mixture This reduces combustion temperatures by up to 500 F The computer determines when for how long and how much exhaust gas is recirculated back to the intake manifold The EGR Monitor performs EGR system function tests at preset times during vehicle operation The EGR Monitor is supported by both spark ign
68. is ON then Chrysler Enhanced U t tabli i press the M mw button to with the vehicle Verify the i connection at the DLC continue Verify the ignition is ON and press M 2 To read the display Refer to DISPLAY FUNCTIONS on page 9 for a description of LCD display elements m A visible icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m A visible ap icon indicates that the Diagnostic Tool is linked to communicating with the vehicle s computer The upper right hand corner of the display shows the number of the pi code currently being displayed the Te total number of codes retrieved P1250 ase Vacuum reservoir control m The Diagnostic Trouble Code DTC circuit open and related code definition are shown in the lower section of the LCD display I M MONITOR STATUS icons are not displayed when Sr viewing enhanced DTCs In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the button to view the additional information 40 Craftsman 87702 Using the Diagnostic Tool VIEWING ENHANCED DTCS m The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no No Enhanced DTCs are codes are present a No Enhanced presently stored in the
69. is and testing of its assigned engine system it means the Monitor HAS NOT RUN The Monitor Run Not Run status does not show whether or not a problem exists in a system Monitor status only indicates whether a particular Monitor has or has not run and performed the self diagnosis and testing of its associated system Performing I M Readiness Quick Check When a vehicle first comes from the factory all Monitors indicate a HAVE RUN status This indicates that all Monitors have run and completed their diagnostic testing The HAVE RUN status remains in the computers memory unless the Diagnostic Trouble Codes are erased or the vehicle s computer memory is cleared The Diagnostic Tool allows you to retrieve Monitor System Status Information to help you determine if the vehicle is ready for an Emissions Test Smog Check In addition to retrieving Diagnostic Trouble Codes the Diagnostic Tool also retrieves Monitor Run Not Run status This information is very important since different areas of the state country have different emissions laws and regulations concerning Monitor Run Not Run status Before an Emissions Test Smog Check can be performed your vehicle must meet certain rules requirements and procedures legislated by the Federal and state country governments where you live 1 In most areas one of the requirements that must be met before a vehicle is allowed to be Emissions Tested Smog Checked is that the vehi
70. is illuminated it may be an indication that some of the Monitors supported by the vehicle have not yet run and completed their diagnostic testing Check the Diagnostic Tools LCD display for confirmation All Monitor icons that are blinking have not yet run and completed their diagnostic testing all Monitor icons that are solid have run and completed their diagnostic testing Red LED Indicates there is a problem with one or more of the vehicle s systems The red LED is also used to indicate that DTC s are present displayed on the Diagnostic Tool s screen In this case the Multifunction Indicator Check Engine lamp on the vehicle s instrument panel will be illuminated SYSTEM STATUS O O O SYSTEM STATUS O O O Torque Converter Clutch Solenoid Circuit Electrical SYSTEM STATUS O O CE m Flashing Red and Yellow LEDs Indicates that a permanent code has been set and one or more of the vehicle s monitors has failed its diagnostic testing A permanent DTC can be cleared only by the vehicle s computer following successful completion of the monitor that caused the fault to set 36 Craftsman 87702 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE m DTC s that start with PO P2 and some P3 are considered Generic Universal All Generic DTC definitions are the same on all OBD2 equipped vehicles The Diagnostic Tool automatically displays the code definitions for Generic DTC
71. ith the Diagnostic Tool on the Code E Main Menu 6 6 Retrieval screen press the M m button Select and press H Vehicle Info m The Main Menu displays O OY Zen Tool Settings Craftsman 87702 Additional Functions ADJUSTMENTS AND SETTINGS 2 Use the DOWN button to highlight Tool Settings then press the ENTER button m The Tool Setting Menu displays 3 Make adjustments and settings as described in the following paragraphs Adjusting Display Brightness 1 Use the DOWN button to highlight Adjust Brightness in the Menu then press the ENTER OH button m The Adjust Brightness screen dis plays m The Brightness field shows the current brightness setting from 1 4 Press the DOWN button to increase the brightness of the LCD display make the display lighter m When the maximum brightness setting is reached and the DOWN button is pressed the display returns to the minimum brightness setting Tool Setting Menu Select and press Audible Tone Display Backlight Select Language Tool Setting Menu Select and press 2 Audible Tone Display Backlight Select Language Brightness 3 Select and press Darker Lighter Press M to exit When the desired brightness is obtained press the ENTER button to save your changes and return to the Menu To exit the Adjust Brightness screen and return to the Menu without making changes press the M m button
72. ition vehicles and compression ignition vehicles The EGR Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory Evaporative System EVAP Monitor OBD2 vehicles are equipped with a fuel Evaporative system EVAP that helps prevent fuel vapors from evaporating into the air The EVAP system carries fumes from the fuel tank to the engine where they are burned during combustion The EVAP system may consist of a charcoal canister fuel tank cap purge solenoid vent solenoid flow monitor leak detector and connecting tubes lines and hoses Fumes are carried from the fuel tank to the charcoal canister by hoses or tubes The fumes are stored in the charcoal canister The computer controls the flow of fuel vapors from the charcoal canister to the engine via a purge solenoid The computer energizes or de energizes the purge solenoid depending on solenoid design The purge solenoid opens a valve to allow engine vacuum to draw the fuel vapors from the canister 22 Craftsman 87702 Onboard Diagnostics OBD2 MONITORS into the engine where the vapors are burned The EVAP Monitor checks for proper fuel vapor flow to the engine and pressurizes the system to t
73. manufacturers may still call this lamp a Check Engine or Service Engine Soon light There are two types of DTCs used for emissions related faults Type A and Type B Type A codes are One Trip codes Type B DTCs are usually Two Trip DTCs When a Type A DTC is found on the First Trip the following events take place m The computer commands the MIL On when the failure is first found m If the failure causes a severe misfire that may cause damage to the catalytic converter the MIL flashes once per second The MIL continues to flash as long as the condition exists If the condition that caused the MIL to flash is no longer present the MIL will light steady On m A DTC is saved in the computer s memory for later retrieval A Freeze Frame of the conditions present in the engine or emissions system when the MIL was ordered On is saved in the computer s memory for later retrieval This information shows fuel system status closed loop or open loop engine load coolant temperature fuel trim value MAP vacuum engine RPM and DTC priority When a Type B DTC is found on the First Trip the following events take place m The computer sets a Pending DTC but the MIL is not ordered On Freeze Frame data may or may not be saved at this time depending on manufacturer The Pending DTC is saved in the computer s memory for later retrieval m f the fa
74. ment value is selected press the ENTER button to save your changes and return to the Menu LS Exiting the MENU Mode 1 VIEWING DTCs IN THE TOOL S MEMORY Press the M m button To exit the Unit of Measurement screen and return to the Menu without making changes press the M m button m The LCD display returns to the DTC screen if data is currently stored in the Diagnostic Tool s memory or the To Link screen if no data is stored To view DTCs and other diagnostic data stored in the Diagnostic Tool s memory do the following 1 With the DLC cable not connected to the Diagnostic Tool press the POWER LINK button to turn the Tool on If DTCs are present in the Diagnostic Tool s memory the first stored DTC will display on the screen m f more than one DTC is present use the DTC button to scroll through the DTCs Saved Freeze Frame data and monitor status are also available Press the DTC E button to view Freeze Frame data for the priority DTC DTC 1 If no DTCs are stored in the Diagnostic Tool s memory a No DTCs or Freeze Frame Data is presently stored in the tool s memory message displays Craftsman 87702 UM MONITOR STATUS ni 20066 00 P0743 Generic Torque Converter Clutch Solenoid Circuit Electrical U L FREEZEFRAME CB Fuel Sys 2 Calc Load ECT C STFT B1 ES No DTCs are presently stored in the tool s memory 65 Gener
75. n the input data the computer determines that the signal from the throttle position sensor is not rational does not make sense when compared to the other inputs In this case the signal would fail the rationality test The CCM is supported by both spark ignition vehicles and compression ignition vehicles The CCM may be either a One Trip or a Two Trip Monitor depending on the component 20 Craftsman 87702 Onboard Diagnostics OBD2 MONITORS Q Fuel System Monitor This Monitor uses a Fuel System Correction program called Fuel Trim inside the on board computer Fuel Trim is a set of positive and negative values that represent adding or subtracting fuel from the engine This program is used to correct for a lean too much air not enough fuel or rich too much fuel not enough air air fuel mixture The program is designed to add or subtract fuel as needed up to a certain percent If the correction needed is too large and exceeds the time and percent allowed by the program a fault is indicated by the computer The Fuel System Monitor is supported by both spark ignition vehicles and compression ignition vehicles The Fuel System Monitor may be a One Trip or Two Trip Monitor depending on the severity of the problem O Misfire Monitor This Monitor continuously checks for engine misfires A misfire occurs when the air fuel mixture in the cylinder does not ignite The misfire Monito
76. ns a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the DOWN button to view the additional information The Diagnostic Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No ABS DTC s are presently stored in the vehicle s computer is displayed Press the M m button to return to the previous Menu No ABS DTCs are presently stored in the vehicle s computer Press M to exit 4 If more than one code was retrieved press the DTC button as necessary to display additional codes one at a time 48 Craftsman 87702 Using the Diagnostic Tool ERASING DIAGNOSTIC TROUBLE CODES DTCs Whenever the Scroll function is used to view additional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again 5 When the last retrieved DTC has been displayed and the DTC button is pressed the Diagnostic Tool returns to the Priority Code m To exit the enhanced mode press the M m button The Diagnostic Tool returns to the Main Menu screen ERASING DIAGNOSTIC TROUBLE CODES DTCs When the Diagnostic Tool s ERASE function is used to Sy erase DTCs from the vehicle s on board computer Freeze Frame data and manufacturer specific enhanced data are also er
77. nt vehicles The Diagnostic Tool can retrieve a list of information provided by the vehicle manufacturer unique to the vehicle under test from the vehicle s on board computer This information may include m The vehicle s VIN number m The control module identification number m The vehicle s calibration ID s These IDs uniquely identify the software version s for the vehicle s control module s m The Vehicle s Calibration Verification Number s CVNs required by ODB2 regulations CVNs are used to determine if emission related calibrations for the vehicle under test have been changed One or more CVNs may be returned by the vehicle s computer 1 While linked to a vehicle press the M m button 58 Craftsman 87702 2 5 Additional Functions VIEWING VEHICLE INFORMATION m The Main Menu displays Use the DOWN button to highlight Vehicle Info then press the ENTER O button m The Vehicle Info Menu displays Use the DOWN button to highlight Vehicle ID then press the ENTER O button A One moment please message displays while the requested information is retrieved from the vehicle s computer Main Menu Select and press 4 Enhanced DTCs System Voltage Check DTC Library Vehicle Info Menu Select and press Vehicle ID Available Modules IPT Press M to exit 3 6 The first time the Vehicle ID function is used it may take several minutes to retrieve the information from th
78. of trips needed with a fault present to set a pending DTC C Number of consecutive trips needed with a fault present to command the MIL On and store a DTC D Number of trips needed with no faults present to erase a Pending DTC E Number and type of trips or drive cycles needed with no faults present to turn off the MIL F Number of warm up periods needed to erase the DTC from the computer s memory after the MIL is turned off Craftsman 87702 Onboard Diagnostics OBD2 MONITORS Name of Monitor A B c D E F Comprehensive Component Monitor Continuous 1 2 1 3 40 Misfire Monitor 3 similar Type 1 and 3 Continuous 2 2 1 conditions 80 Misfire Monitor 3 similar Type 2 Continuous 1 conditions 80 Fuel System Monitor Continuous 4 1 or 4 3 similar 80 conditions Catalytic Converter Once per Monitor trip 1 2 l Strips De Oxygen Sensor Once per h Monitor trip i 2 f Strips la Oxygen Sensor Once per Heater Monitor trip 1 2 1 3 trips 40 Exhaust Gas Recirculation EGR OncePer 4 2 1 3 trips 40 E trip Monitor Evaporative Olied ber Emissions Controls oP 1 2 1 3 trips 40 E trip Monitor Secondary Air Once per System AIR Monitor rip 1 2 l Strips 40 NMHC Monitor Once per 4 2 4 3 trips 40 trip NOx Adsorber Once per x Monitor rip 1 2 1 3 trips 40 Boost Pressure Once per System Monitor trip 1 2 1 3 trips Y Exhaust Gas Sensor Once per P Monitor rip 1
79. ompleted when all the Enabling Criteria for the Monitor to run and complete its diagnostic testing are met by the time the ignition key is turned Off Since each of the eleven monitors is designed to run diagnostics and testing on a different part of the engine or emissions system the Trip Drive Cycle needed for each individual Monitor to run and complete varies Craftsman 87702 15 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs OBD2 Drive Cycle An OBD2 Drive Cycle is an extended set of driving procedures that takes into consideration the various types of driving conditions encountered in real life These conditions may include starting the vehicle when it is cold driving the vehicle at a steady speed cruising accelerating etc An OBD2 Drive Cycle begins when the ignition key is turned On when cold and ends when the vehicle has been driven in such a way as to have all the Enabling Criteria met for all its applicable Monitors Only those trips that provide the Enabling Criteria for all Monitors applicable to the vehicle to run and complete their individual diagnostic tests qualify as an OBD2 Drive Cycle OBD2 Drive Cycle requirements vary from one model of vehicle to another Vehicle manufacturers set these procedures Consult your vehicle s service manual for OBD2 Drive Cycle procedures E Do not confuse a Trip Drive Cycle with an OBD2 Drive Cycle A Trip Drive Cycle provides the
80. omputer commands the MIL On and saves the code in its long term memory Craftsman 87702 25 Onboard Diagnostics OBD2 MONITORS PM Filter Monitor The particulate matter PM filter removes particulate matter from the exhaust stream by filtration The filter has a honeycomb structure similar to a catalyst substrate but with the channels blocked at alternate ends This forces the exhaust gas to flow through the walls between the channels filtering the particulate matter out The filters are self cleaning by periodic modification of the exhaust gas concentration in order to burn off the trapped particles oxidizing the particles to form CO2 and water The computer monitors the efficiency of the filter in trapping particulate matter as well as the ability of the filter to regenerate self clean The PM Filter Monitor is supported by compression ignition vehicles only The PM Filter Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory OBD2 Reference Table 26 The table below lists current OBD2 Monitors and indicates the following for each Monitor A Monitor Type how often does the Monitor run Continuous or Once per trip B Number
81. on Selecting the Display Language 1 Use the DOWN button to highlight Select Language in the Menu then press the ENTER OH button m The Select Language screen displays m The currently selected display Language is highlighted Press the DOWN button as necessary to highlight the desired display language When the desired display language is highlighted press the ENTER button to save your changes and return to the Menu shown in the selected display language Tool Setting Menu Select and press 44 Adjust Brightness Audible Tone Display Backlight Select Language Language Select and press 4 nglis Espanol Francais Press M to exit To exit the Select Language screen and return to the Menu without making changes press the M m button Setting the Unit of Measurement 1 Use the DOWN button to highlight Unit of Measurement in the Menu then press the ENTER button Tool Setting Menu Select and press Audible Tone Display Backlight Select Language Unit of Measurement Craftsman 87702 2 Additional Functions VIEWING DTCs IN THE TOOL S MEMORY m The Unit of Measurement screen displays m The currently selected Unit of Measurement is highlighted Press the DOWN button as necessary to highlight the desired Unit of Measurement Select Unit Select and press Metric Press M to exit When the desired Unit of Measure
82. ostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the ieee ee N E nable to establish a lin Diagnostic Tools display with the vehicle Verify the N ee i connection at the DLC Verify the ignition is ON then Verify the ignition is ON and press M press the M button to continue Craftsman 87702 41 Using the Diagnostic Tool VIEWING ENHANCED DTCS m If the KOER Test was selected and the vehicle s engine is not running an advisory message shows on the Diagnostic Tool s display The vehicle must be running Start the vehicle s engine then to perform the KOER Test press the ENTER button to Press M to exit continue 2 An instructional message shows on the Diagnostic Tool s display Perform test procedures as appropriate Ford KOER m If the Continuous Memory or KOEO test was selected turn the ignition OFF then back ON Press the Esra KOES ENTER button to start the test E A One moment please message Se displays while the test is in Press M to exit progress m if the KOER test was selected press the ENTER button to continue A One moment please message Ford KOER displays while the test is in When test starts do the progress following Turn the steering wheel to the E right then release Press and release the brake pedal Cycle the overdrive switch if equipped 3 To read the display Refer to DISP
83. pressed the Diagnostic Tool returns to the Priority Code m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the M m button The Diagnostic Tool returns to the Main Menu screen Craftsman 87702 45 Using the Diagnostic Tool VIEWING ENHANCED DTCS Toyota Lexus Enhanced DTCs 46 When the Diagnostic Tool enters the enhanced mode and Toyota is selected if prompted the Diagnostic Tool retrieves enhanced DTCs from the vehicle s computer 1 A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs m lf the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the Diagnostic Tool s Display Verify the ignition is ON then press the M m button to continue 2 To read the display Toyota Enhanced One moment please Retrieving DTCs Toyota Enhanced Unable to establish a link with the vehicle Verify the connection at the DLC Verify the ignition is ON and press M Refer to DISPLAY FUNCTIONS on page 9 for a description of LCD display elements m A visible e icon indicates that the Diagnostic Tool is being powered through the vehicle s DLC connector m A visible ab icon indicates that the Diagnostic Tool is linked to communicating with the vehicle s computer m The upper right hand corner of the display shows the
84. r uses changes in crankshaft speed to sense an engine misfire When a cylinder misfires it no longer contributes to the speed of the engine and engine speed decreases each time the affected cylinder s misfire The misfire Monitor is designed to sense engine speed fluctuations and determine from which cylinder s the misfire is coming as well as how bad the misfire is There are three types of engine misfires Types 1 2 and 3 Type 1 and Type 3 misfires are two trip monitor faults If a fault is sensed on the first trip the computer temporarily saves the fault in its memory as a Pending Code The MIL is not commanded on at this time If the fault is found again on the second trip under similar conditions of engine speed load and temperature the computer commands the MIL On and the code is saved in its long term memory Type 2 misfires are the most severe type of misfire When a Type 2 misfire is sensed on the first trip the computer commands the MIL to light when the misfire is sensed If the computer determines that a Type 2 misfire is severe and may cause catalytic converter damage it commands the MIL to flash once per second as soon as the misfire is sensed When the misfire is no longer present the MIL reverts to steady On condition The Misfire Monitor is supported by both spark ignition vehicles and compression ignition vehicles amp Catalyst Monitor The catalytic converter is a device tha
85. raftsman 87702 Using the Diagnostic Tool VIEWING ENHANCED DTCS VIEWING ENHANCED DTCs The enhanced mode provides the ability to retrieve enhanced DTCs from most Chrysler Jeep Ford Mazda GM lsuzu Honda Acura and Toyota Lexus vehicles The types of enhanced data available depends on the vehicle make You can also retrieve Anti Lock Brake System ABS DTCs To view Enhanced DTCs 1 With the Diagnostic Tool on the Code Retrieval screen press and release the M m button m The Main Menu displays 2 Use the DOWN button to highlight Enhanced DTCs then press the ENTER button 3 The screen shown when Enhanced DTCs is selected from the Main Menu depends on the type s of DTC s returned during the code retrieval process Main Menu 1 6 Select and press System Voltage Check Vehicle Info DTC Library If no DTCs were retrieved or only generic DTCs were retrieved the Select Manufacturer screen displays Use the DOWN button to high light the appropriate manufacturer then press the ENTER button to view the selected information If the Diagnostic Tool recognizes the vehicle make or if a Manufacturer specific DTC was retrieved and the manufacturer selected for the code was Ford the Select Data menu displays Use the DOWN button to highlight the desired option then Enhanced DTCs Select and press 4 Chrysler Toyota Exit KOEO Test KOER Test Press M to exit Ford Enhanc
86. rque Converter Clutch Frame data are displayed on the Solenoid Circuit Electrical Diagnostic Tool s LCD display screen System Status is indicated by LED indicators Easy To Define CR m Read code definitions from the Diagnostic Tool s LCD display m View Freeze Frame data Calc Load Freeze Frame Data P0113 2 Craftsman 87702 Safety Precautions SAFETY FIRST SAFETY FIRST To avoid personal injury instrument damage and or damage to your vehicle do not use the OBD2 Diagnostic Tool before reading this manual This manual describes common test procedures used by experienced service technicians Many test procedures require precautions to avoid accidents that can result in personal injury and or damage to your vehicle or test equipment Always read your vehicle s service manual and follow its safety precautions before and during any test or service procedure ALWAYS observe the following general safety precautions When an engine is running it produces carbon monoxide a toxic and poisonous gas To prevent serious injury or death from carbon monoxide poisoning operate the vehicle ONLY in a well ventilated area To protect your eyes from propelled objects as well as hot or caustic liquids always wear approved safety eye protection When an engine is running many parts such as the coolant fan pulleys fan belt etc turn at high speed To avoid serious injury always be aware of moving pa
87. rts Keep a safe distance from these parts as well as other potentially moving objects Engine parts become very hot when the engine is running To prevent severe burns avoid contact with hot engine parts Before starting an engine for testing or troubleshooting make sure the parking brake is engaged Put the transmission in park for automatic transmission or neutral for manual transmission Block the drive wheels with suitable blocks Connecting or disconnecting test equipment when the ignition is ON can damage test equipment and the vehicle s electronic components Turn the ignition OFF before connecting the Diagnostic Tool to or disconnecting the Diagnostic Tool from the vehicle s Data Link Connector DLC Craftsman 87702 3 Safety Precautions SAFETY FIRST To prevent damage to the on board computer when taking vehicle electrical measurements always use a digital N multimeter with at least 10 MegOhms of impedance gt Fuel and battery vapors are highly flammable To prevent an explosion keep all sparks heated items and open flames away from the battery and fuel fuel vapors DO Y NOT SMOKE NEAR THE VEHICLE DURING TESTING Don t wear loose clothing or jewelry when working on an engine Loose clothing can become caught in the fan pulleys belts etc Jewelry is highly conductive and can cause a severe burn if it makes contact between a power source and ground 4 Craftsman 87702 About the Diagnostic
88. s m DTC s that start with P1 and some P3 are Manufacturer Specific codes and their code definitions vary with See Make each vehicle manufacturer When a More Gi Manufacturer Specific DTC is Chrysler retrieved the LCD display shows a list E of vehicle manufacturers Use the DOWN button to highlight the appropriate manufacturer then press the ENTER button to display the correct code definition for your vehicle A confirmation message shows on the LCD display If the correct manufacturer is shown use the DOWN button 2 to highlight YES then press the You have selected ENTER button to continue Acura Select and press If the correct manufacturer is not YES NO shown use the DOWN button to highlight NO then press the ENTER button to return to the list of vehicle manufacturers E If the manufacturer for your vehicle is not listed use the DOWN button to select More and press the ENTER button for additional manufacturers E If the Manufacturer Specific definition for the currently dis gt monmonsrarus dia played code is not avalable an IO ed advisory message shows on the P1639 Romer Diagnostic Tool s LCD display The DTC Definition is not available please visit 9 If more than one code was retrieved press DECHE the DTC F button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view addi
89. side the intake manifold to a level greater than atmospheric pressure This increase in pressure helps to ensure compete combustion of the air fuel mixture The Boost Pressure System Monitor checks for component integrity and system operation and tests for faults in the system The computer runs this Monitor once per trip The Boost Pressure System Monitor is supported by compression ignition vehicles only The Boost Pressure System Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory O Exhaust Gas Sensor Monitor The exhaust gas sensor is used by a number of systems monitors to determine the content of the exhaust stream The computer checks for component integrity system operation and tests for faults in the system as well as feedback faults that may affect other emission control systems The Exhaust Gas Sensor Monitor is supported by compression ignition vehicles only The Exhaust Gas Sensor Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the c
90. standardize communication procedures and protocols between the diagnostic equipment Scan Tools Code Readers etc and the vehicle s on board computer OBD2 Terminology The following terms and their definitions are related to OBD2 systems Read and reference this list as needed to aid in the understanding of OBD2 systems 14 Craftsman 87702 Onboard Diagnostics COMPUTER ENGINE CONTROLS Powertrain Control Module PCM The PCM is the OBD2 accepted term for the vehicle s on board computer In addition to controlling the engine management and emissions systems the PCM also participates in controlling the powertrain transmission operation Most PCMs also have the ability to communicate with other computers on the vehicle ABS ride control body etc Monitor Monitors are diagnostic routines programmed into the PCM The PCM utilizes these programs to run diagnostic tests and to monitor operation of the vehicle s emissions related components or systems to ensure they are operating correctly and within the vehicle s manufacturer specifications Currently up to fifteen Monitors are used in OBD2 systems Additional Monitors will be added as the OBD2 system is further developed Se Not all vehicles support all fifteen Monitors m Enabling Criteria Each Monitor is designed to test and monitor the operation of a specific part of the vehicle s emissions system EGR system oxygen sensor catalytic conv
91. stic Tool to a vehicle and retrieve diagnostic data refer to CODE RETRIEVAL PROCEDURE on page 33 for details 2 Visit www innova com download and install the latest RepairSolutions software for you Diagnostic Tool Select the Support tab then choose Download 3 Connect the Diagnostic Tool to your PC using a Mini USB cable cable included m Your default web browser launches automatically and connects to the www innova com website 4 Login to your RepairSolutions account using your registered Email Address and Password If you have not yet established an account you must Se register for a FREE RepairSolutions account before proceeding UM READINESS TESTING M is an Inspection and Maintenance program legislated by the Government to meet federal clean air standards The program requires that a vehicle be taken periodically to an Emissions Station for an Emissions Test or Smog Check where the emissions related components and systems are inspected and tested for proper operation Emissions Tests are generally performed once a year or once every two years Craftsman 87702 51 Using the Diagnostic Tool I M READINESS TESTING On OBD2 systems the I M program is enhanced by requiring vehicles to meet stricter test standards One of the tests instituted by the Federal Government is called I M 240 On I M 240 the vehicle under test is driven under different speeds and load conditions on a dynamometer for 2
92. sult your vehicle s repair manual to identify the proper computer PCM fuse circuit and perform any necessary repairs before proceeding 5 Turn the ignition on DO NOT start the engine The Diagnostic Tool will automatically start a check of the vehicle s computer to determine which type of communication protocol it is using When the Diagnostic Tool identifies the computers communication protocol a communication link is established The protocol type used by the vehicle s computer is shown on the LCD display Se A PROTOCOL is a set of rules and procedures for regulating data transmission between computers and between testing equipment and computers As of this writing five different types of protocols ISO 9141 Keyword 2000 J1850 PWM J1850 VPW and CAN are in use by vehicle manufacturers The Diagnostic Tool automatically identifies the protocol type and establishes a communication link with the vehicle s computer 6 After approximately 10 60 seconds the Diagnostic Tool will retrieve and display any Diagnostic Trouble Codes Monitor Status and Freeze Frame Data retrieved from the vehicle s computer memory If the Diagnostic Tool fails to link to the vehicle s computer a Linking Failed message shows on the i i e i Unable t tablish a link Diagnostic Tool s LCD display wae ea ae a A connection at the DLC Verify the connection at the DLC Verify the ignition is ON and verify the ignition is ON
93. t is installed downstream of the exhaust manifold It helps to oxidize burn the unburned fuel hydrocarbons and partially burned fuel carbon monoxide left over from the combustion process To accomplish this heat and catalyst materials inside the converter react with the exhaust gases to burn the remaining fuel Some materials inside the catalytic converter also have the ability to store oxygen and release it as needed to oxidize hydrocarbons and carbon monoxide In the process it reduces vehicle emissions by converting the polluting gases into carbon dioxide and water The computer checks the efficiency of the catalytic converter by monitoring the oxygen sensors used by the system One sensor is located before upstream of the converter the other is located after downstream of the converter If the catalytic converter loses its ability to store oxygen Craftsman 87702 21 Onboard Diagnostics OBD2 MONITORS the downstream sensor signal voltage becomes almost the same as the upstream sensor signal In this case the monitor fails the test The Catalyst Monitor is supported by spark ignition vehicles only The Catalyst Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code
94. t the desired display language English French or Spanish and unit of measurement USA or Metric as follows 1 Press the POWER LINK button to turn the Diagnostic Tool ON Language m The Select Language screen Select and press displays Espanol Frangais Use the DOWN button to highlight the desired display language When the desired display language is selected press the ENTER button to Select Unit confirm your selection Select and press m The Select Unit screen displays Metrig Press M to exit Use the DOWN button to highlight the desired unit of measurement When the desired unit of measurement is selected press the ENTER button to confirm your selection Se After the initial language and unit of measurement selections are performed these as well as other settings can be changed as desired Proceed to ADJUSTMENTS AND SETTINGS on page 60 for further instructions Craftsman 87702 Diagnostic Tool Controls CONTROLS AND INDICATORS CONTROLS AND INDICATORS Figure 1 Controls and Indicators See Figure 1 for the locations of items 1 through 12 below 1 E ERASE button Erases Diagnostic Trouble Codes DTCs and Freeze Frame data from your vehicle s computer and resets Monitor status 2 ENTER button When in Menu mode confirms the selected option or value 3 F DTC button Displays the DTC View screen and or scrolls the LC
95. the Diagnostic Tool is linked to communicating with the vehicle s computer m The upper right hand corner of the display shows the number of the code currently being displayed the i Honda 90 01 total number of codes retrieved P1456 SE m The Diagnostic Trouble Code DTC EE and related code definition are Fuel Tank System shown in the lower section of the LCD display I M MONITOR STATUS icons are not displayed when 7 viewing enhanced DTCs In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the button to view the additional information m The Diagnostic Tool will display a code only if codes are present in the vehicles computer memory If no codes are present a No Enhanced ee DTC s are presently stored in the Yenlele computer vehicle s computer is displayed Press the M m button to return to the Main Menu Press M to exit 3 If more than one code was retrieved press the DTC F button as necessary to display additional codes one at a time Whenever the Scroll function is used to view additional codes the Diagnostic Tool communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again 4 When the last retrieved DTC has been displayed and the DTC button is
96. ther or not the Diagnostic Tool is communicating linked with the vehicle s on board computer When visible the Diagnostic Tool is communicating with the computer If the Link icon is not visible the Diagnostic Tool is not communicating with the computer 2 Computer icon When this icon is visible it indicates that the Diagnostic Tool is linked to a personal computer Optional software is available that makes it possible to upload retrieved data to a personal computer Diagnostic Tool Internal Battery icon When visible indicates the Diagnostic Tool batteries are low and should be replaced If the batteries are not replaced when the battery symbol amp is on all 3 LEDs will light up as a last resort indicator to warn you that the batteries need replacement No data will be displayed on screen when all 3 LEDs are lit Diagnostic Tool Controls DISPLAY FUNCTIONS 10 10 11 12 13 14 15 DTC Display Area Displays the Diagnostic Trouble Code DTC number Each fault is assigned a code number that is specific to that fault Test Data Display Area Displays DTC definitions Freeze Frame data and other pertinent test information messages FREEZE FRAME icon Indicates that there is Freeze Frame data from Priority Code Code 1 stored in the vehicle s computer memory PERMANENT icon Indicates the currently displayed DTC is a Permanent code ABS icon Indicates the currently displ
97. ting ABOUT REPAIRSOLUTIONS 50 RepairSolutions is a web based service created to assist both the do it yourselfer and professional technicians in quickly and accurately diagnosing and repairing today s vehicles RepairSolutions allows you to view save and email the diagnostic data retrieved from a vehicle s on board computer s using the Diagnostic Tool RepairSolutions also provides access to an extensive knowledge database including m Verified Fixes Find the most likely fixes reported and verified by ASE Technicians for the retrieved DTCs m Step By Step Repair Instructions View available repair instructions to properly perform the fix m How To Repair Videos Watch repair video tutorials for valuable repair tips Craftsman 87702 Using the Diagnostic Tool I M READINESS TESTING Technical Service Bulletins Research known problems reported by vehicle manufacturers m Safety Recalls Research known safety concerns applicable to a vehicle And much more Please visit www innova com for additional information Hardware Requirements m Diagnostic Tool m Mini USB Cable included with tool Minimum System Operating Requirements Windows PC System Windows XP Windows Vista or Windows 7 128 MD Ram Pentium III Processor One available USB port Internet Connection Internet Explorer 5 5 Netscape 7 0 or Firefox 1 0 browser Accessing RepairSolutions 1 Link your Diagno
98. tional codes the Diagnostic Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK button again m Each time the DTC button is pressed and released the Diagnostic Tool will scroll and display the next DTC in sequence until all DTCs in its memory have displayed m Freeze Frame Data if available will display after DTC 1 Craftsman 87702 37 Using the Diagnostic Tool CODE RETRIEVAL PROCEDURE m In OBD2 systems when an emissions related engine malfunction occurs that causes a DTC to set a record or snapshot of engine conditions at the time that the E ER malfunction occurred is also saved in EC the vehicle s computer memory The STFT B1 record saved is called Freeze Frame data Saved engine conditions include but are not limited to engine speed open or closed loop operation fuel system commands coolant temperature calculated load value fuel pressure vehicle speed air flow rate and intake manifold pressure than one DTC to be set only the code with the highest priority will contain Freeze Frame data The code designated 01 on the Diagnostic Tool display is referred to as the PRIORITY code and Freeze Frame data always refers to this code The priority code is also the one that has commanded the MIL on SS If more than one malfunction is present that causes more Se Retrieved information can be uploaded to a Personal Computer
99. ture for the computer to enter into closed loop operation The oxygen sensor only functions when the computer is in closed loop A properly operating oxygen sensor reacts quickly to any change in oxygen content in the Craftsman 87702 23 Onboard Diagnostics OBD2 MONITORS exhaust stream A faulty oxygen sensor reacts slowly or its voltage signal is weak or missing The Oxygen Sensor Monitor is supported by spark ignition vehicles only The Oxygen Sensor Monitor is a Two Trip monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory D Secondary Air System Monitor When a cold engine is first started it runs in open loop mode During open loop operation the engine usually runs rich A vehicle running rich wastes fuel and creates increased emissions such as carbon monoxide and some hydrocarbons A Secondary Air System injects air into the exhaust stream to aid catalytic converter operation 1 It supplies the catalytic converter with the oxygen it needs to oxidize the carbon monoxide and hydrocarbons left over from the combustion process during engine warm up 2 The extra oxygen injected into the exhaust stream also helps the catalytic converter reach operating temperat
100. type and number of Monitors the vehicle supports and provides indications of the current status of the vehicle s Monitors A solid Monitor icon indicates the associated Monitor has run and completed its testing A blinking Monitor icon indicates the associated Monitor has not run and completed its testing m The upper right hand corner of the dis play shows the number of the code AMOO SANOS diin currently being displayed the total 0900 number of codes retrieved the type of P0743 er code and whether or not the displayed Torque Converter Clutch code commanded the MIL on If the Soleneld Elrcult El ctrica code being displayed is a PENDING code the PENDING icon is shown Freeze Frame data is always associated with the Priority Code identified as Code 1 in the Diagnostic Tool s display If the FREEZE FRAME icon is lit when the Priority Code Code 1 is displayed on the Diagnostic Tool s screen it indicates that there is Freeze Frame data associated with this code and the vehicle s computer has saved it in its memory FREEZEFRAME CH m The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display In the case of long code definitions a small arrow is Ir shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the button to view the additional information 8 Read and interpret D
101. uire that some but not all Monitors have run their self diagnostic testing before an Emissions Test Smog Check may be performed En I M MONITOR STATUS og 00603200 Ww 0500000 H No Powertrain DTCs or Freeze Frame Data is presently stored in the vehicle s computer SYSTEM STATUS O O O Craftsman 87702 Using the Diagnostic Tool I M READINESS TESTING From the code retrieval procedure determine the status of each Monitor a solid Monitor icon shows Monitor Has Run status a flashing Monitor icon indicates Has Not Run status Take this information to an emissions professional to determine based on your test results if your vehicle is ready for an Emissions Test Smog Check 3 RED LED Indicates there is a problem with one or more of the vehicle s systems SE DI A vehicle displaying a red LED is definitely O e not ready for an Emissions Test Smog P0743 Check The red LED is also an indication Torque Converter Clutch that there are Diagnostic Trouble Code s Solenoid Cireult Electrical present displayed on the Diagnostic Tool s screen The Multifunction Indicator Check Engine Lamp on the vehicle s instrument panel will light steady The system starus O 0 O problem that is causing the red LED to light must be repaired before an Emissions Test Smog Check can be performed It is also suggested that the vehicle be inspected repaired before driving the vehicle further 4 Flashing Red and Yellow LE
102. ure more quickly during warm up periods The catalytic converter must heat to operating temperature to work properly The Secondary Air System Monitor checks for component integrity and system operation and tests for faults in the system The computer runs this Monitor once per trip The Secondary Air System Monitor is a Two Trip monitor If a fault is found on the first trip the computer temporarily saves this fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory O Non Methane Hydrocarbon Catalyst NMHC Monitor The non methane hydrocarbon catalyst is a type of catalytic converter lt helps to remove non methane hydrocarbons NMH left over from the combustion process from the exhaust stream To accomplish this heat and catalyst materials react with the exhaust gases to convert NMH to less harmful compounds The computer checks the efficiency of the catalyst by monitoring the quantity of NMH in the exhaust stream The monitor also verifies that sufficient temperature is present to aid in particulate matter PM filter regeneration The NMHC Monitor is supported by compression ignition vehicles only The NMHC Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code
103. y and spark timing more precisely Some newer Computer Control Systems also provide control over other vehicle functions such as transmission brakes charging body and suspension systems Craftsman 87702 11 Onboard Diagnostics COMPUTER ENGINE CONTROLS The Basic Engine Computer Control System The Computer Control System consists of an on board computer and several related control devices sensors switches and actuators The on board computer is the heart of the Computer Control System The computer contains several programs with preset reference values for air fuel ratio spark or ignition timing injector pulse width engine speed etc Separate values are provided for various driving conditions such as idle low speed driving high speed driving low load or high load The preset reference values represent the ideal air fuel mixture spark timing transmission gear selection etc for any driving condition These values are programmed by the vehicle manufacturer and are specific to each vehicle model Most on board computers are located inside the vehicle behind the dashboard under the passenger s or driver s seat or behind the right kick panel However some manufacturers may still position it in the engine compartment Vehicle sensors switches and actuators are located throughout the engine and are connected by electrical wiring to the on board computer These devices include oxygen sensors coolant t
104. yed and the DTC F button is pressed the Diagnostic Tool returns to the Priority Code m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the M m button The Diagnostic Tool returns to the Main Menu screen VIEWING ABS DTCs Refer to VEHICLE APPLICATIONS MAKES COVERED on page 71 for vehicles covered Reading ABS DTCs 1 From the OBD2 DTC screen or Enhanced DTC screen press the ABS 9 button If no OBD2 DTCs were retrieved or only generic DTCs were retrieved the Select Manufacturer screen displays Use the DOWN button to highlight the appropriate manufacturer then press the ENTER button to continue or highlight Exit and press the ENTER CH button to return to the previous Menu The Diagnostic Tool will start a check of the vehicle s computer to determine which type of communication protocol it is using When the Diagnostic Tool identifies the computers communica tion protocol a communication link is established ABS DTCs Select and press GM Honda Ford ABS Detecting the protocol 2 A One moment please message displays while the Diagnostic Tool retrieves the selected DTCs If the vehicle does not support ABS communication an advisory message shows on the Diagnostic Tool s display Press the M m button to return to the Main Menu display Craftsman 87702 EN This vehicle does not support ABS Communication 47

Craftsman CanOBD Diagnostic Tool Owner's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents