V-Checker V301 User Manual
Contents
1. If a fault does not occur within a certain number of warm up cycles depending on vehicle the Pending Code or Diagnostic Trouble Code clears from vehicle s computer module Pending Code _ faults DO NOT automatically indicate a faulty component or system Select READ DTC in the main function menu of generic mode and then press lt key The screen will be displayed as follow select CURRENT DTC and press lt key V checker will display the current diagnostic trouble codes in the screen This is an example display PASSE Turbo Super a raer Boost SensorlAl Circuit High 16 http www obd2be com OBDED V checker OBD II Professional Note HlThe first number is the DTC number the second number is the total of DTCs Select PEND DTC and press key V checker will display the pending diagnostic trouble codes in the screen Press key to view the next DTC and f key for the previous one After reading the DTCs press key to return the main function menu for generic mode Erase DTC When the Code Reader s ERASE function is used to erase DTCs from the vehicle s on board computer manufacturer specific enhanced data are also erased Erasing DTCs does not fix the problem s that caused the code s 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 illum2. Lil Protessar Mod Generic Mode Generic mode is used for common OBD2 diagnosis for your vehicle no matter what is the make Select 1 Generic Mode in the main menu and then press key The screen will display the main function menu for generic mode as shown in the figure below 14 http www obd2be com OBDED V checker OBD II Professional Stream Freeze Frame Data E Sensor Test On Board Mon itor equest Contrl Test TS mji Read DTC 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 The Read Codes function allows the V checker to read the current Diagnostic Trouble Codes DTCs and Pending DTCs from the vehicle s computer modules Diagnostic Trouble Codes DTCs help determine the cause of a problem or problems with a vehicle Read Codes can be done with the Key On Engine Off KOEO or with the Key On Engine Running KOER Continuous monitor and maturing codes are other names for Pending Codes If Pending Codes or faults occur a specific 15 http www obd2be com V checker OBD II Professional number of times depending on vehicle they mature into a DTC and the MIL lights or blinks
3. and properly connected See your vehicle s service manual for locations 12 http www obd2be com OBDED V checker OBD II Professional 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 applicable etc Start the V checker 1 Turn the ignition off 2 Locate the vehicle s 16 pin Data Link Connector DLC 3 Connect the V checker cable connector to the vehicle s DLC The V checker will auto 13 http www obd2be com V checker OBD II Professional start the following screen will be displayed Key on Press any key to diagnosis 4 Press any key to continue The V checker will check the communication protocol of the connected vehicle 5 After successful communication the screen will display the main menu as shown below ener LS
4. 0201 Injector Circuit Malfunction Cylinder 1 The 3rd character is a numeric digit It identifies the specific system or sub system where the problem is located The 4th and 5th characters are numeric digits They identify the section of the system that is malfunctioning Preparation for Testing The V checker aids in monitoring electronic and 11 http www obd2be com OBDED V checker OBD II Professional 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 false fault code 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 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
5. OBDED Table of Contents Safety PrecautiOns cee About V checKer w cccccceceeeeeeeen APPMCATIONS siicseiscssaesaccicsescensaaesiacssaoacundeaens Available Functions eeeeeeeeeeeees Main FC ACUI CS austen enesssesssasascusnsecszisvesaseeetes Appearance and Key Descriptions Operation Instructions uw 7 About OBD2 occ ceeccccesecesnseeeeneeeens 7 Data Link Connector DLC Location 8 POU DG Serca 9 Preparation for Testing cece 11 Start the V CHECK EL scccssscsssecesecssesnsessseresects 13 Generic Mode wu cece eeeeceeeseccessceceeneeeees 14 Read BE Oe eee ene ene een een 15 Erase DTC we ceeecccesesseccesstseceessneees 17 Data Stream ec ccecescccceessseceessseees 18 Freeze Frame WO ACA sentesseccsssvansesnmnannvevsestnses 20 Oxygen Sensor Test uo cc cceeeeeeeees 20 Onboard Monitor cece eeeeeeeeeeeeees 21 Request Control Test cece 22 ECU Information oo eeeeeeeeeeees 22 Professor Mode 0 cece ceesceceseeceeeeeeees 23 http www obd2be com Une OnReT OBD II Professional Safety Precautions To avoid personal injury instrument damage and or damage to your vehicle do not use the V checker 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 man
6. ay DTCs continuously High reliable and accurate http www obd2be com UC OneT OBD II Professional The appearance of a V CHECKER is as shown in the above figure 1 a a a Ol LCD screen 128 64 pixels Diagnostic extension cable OBDII 16PIN t key select item or scroll to previous screen lt _ key confirm left key return right key select item or scroll to next screen OK key confirm selection and enter Exit key cancel and return http www obd2be com OBDED V checker OBD II Professional Operation Instructions About OBD2 Federal law requires that all 1996 and newer cars and light trucks sold in the United States must be OBD 2 compliant this includes all Domestic Asian and European vehicles some 1994 and 1995 vehicles are OBD 2 compliant To find out if a 1994 or 1995 vehicle is OBD 2 compliant check the following 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 OBD 2 compliant the label will state OBD Il Certified 2 Government Regulations require that all OBD 2 compliant vehicles must have a common sixteen pin Data Link Connector DLC http www obd2be com OBDED V checker OBD II Professional Some 1994 and 1995 vehicles have 16 pin connectors but are not OBD 2 compliant Only those vehicles with a Vehicle Emissions Con
7. erform test for test ID 03 Press t to select previous test ID Press to select next test ID Press to cancel test and return 21 http www obd2be com OBDED V checker OBD II Professional Request Control Test Select 7 Request Control Test in the main menu for generic mode and press lt key V checker will perform test for test ID 01 if the function can be supported by the tested system as shown in the figure below MLE EVaporat i We are leak test On COMMUN Locat bon Test result PASS Please perform test according screen tips ECU Information With this function user can read the supported ID information of the tested module including Vehicle ID Calibration ID Calibration verification In Use Performance Tracking Select 8 ECU Information in the main menu for generic mode and press lt key V checker will display a menu as shown below 22 http www obd2be com OBDED V checker OBD II Professional SaLLErat bon Calib Wer tf boat Lon In use Perfo Track ing Select an item and then press lt key the screen will display the calibration ID as shown below Professor Mode The professor mode is different from the Generic Mode in the following 1 You must select a right model for the tested vehicle 2 The professor mode can read some manufacturer diagnostic trouble codes The operation procedures are the same as that for the gen
8. eric mode Please refer to the Generic Mode section or follow the screen tips to perform test 23 http www obd2be com
9. here the fault occurred Body Chassis Powertrain or Network 9 http www obd2be com V checker OBD II Professional The 2nd character is a numeric digit It identifies the type of code Generic or Manufacturer Specific Generic DTCs are codes that are used by all vehicle manufacturers The standards for generic DTCs as well as their definitions are set by the Society of Automotive Engineers SAE Manufacturer Specific DTCs are codes that are controlled by the 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 10 http www obd2be com OBDED V checker OBD II Professional B Body P 0 2 0 1 C Chassis P Powertrain U Network 0 Generic 1 Manufacturer Specific 2 Generic 3 Includes both Generic and Manufacturer Identifies the system where the problem is located 1 Fuel and Air Metering 2 Fuel and Air Metering injector circuit 3 Ignition System or Misfire 4 Auxiliary Emission Control System 5 Vehicle Speed Control and Idle Control 6 Computer Output Circuits 7 Transmission 8 Transmission Identifies what section of the system is malfunctioning Specific Codes malfunction only System P
10. inate as soon as the 17 http www obd2be com V checker OBD II Professional vehicle is driven long enough for its Monitors to complete their testing 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 Select 2 ERASE DTC in the main menu for generic mode and press key V checker will erase the trouble codes If the erase was successful a confirmation message shows on the LCD display Press the button to return to the main menu for generic mode On eae ae ence OTCs erased on EMG o Data Stream The DATA SREAM function allows you to view the live data for some electronic controlled units 18 http www obd2be com V checker OBD II Professional DATA STREAM Status A value is displayed the live data of the corresponding parameter Complete NA Vehicle was driven enough to complete the monitor and vehicle does not support that parameter Not Completed NA vehicle was not driven enough to complete the parameter and vehicle does not support that parameter Select 3 DATA STREAM in the main menu for generic mode and press lt key V checker will display the data stream The following figure is a example screen Press to view the next screen press f to view the previous scree
11. n Each screen will display the live data for 4 parameters Note only the supported data stream items will be displayed for the tested vehicles 19 http www obd2be com OBDED V checker OBD II Professional Freeze Frame Data View Freeze Data is a snapshot of the operating conditions at the time of an emission related fault Faults with higher priority can overwrite View Freeze Data Depending on when vehicle DTCs were last erased Freeze Frame Data may not be stored in vehicles memory Select 4 Freeze Frame Data in the main menu for generic mode and press lt key V checker will display a menu as shown below 1 Freeze DTC rane Data Select 1 Freeze DTC to view the stored DTCs select 2 Freeze Frame Data to view the freeze data Oxygen Sensor Test You can test the oxygen by using this function for your vehicle 20 http www obd2be com V checker OBD II Professional Select 5 Oxygen Sensor Test in the main menu for generic mode and press lt key V checker will display a menu as shown below Rich to lean sensor t hreshold voltage icon Select BANK 1 SENSOR 1 to test sensor 1 in bank 1 select BANK 1 SENSOR 2 to test sensor 2 in bank 1 Onboard Monitor Select 6 Onboard Monitor in the main menu for generic mode and press lt key V checker will display a screen like this one OMponen t Han Limit Test value Test Result Press lt to p
12. rd computer when taking vehicle electrical measurements always use a digital multimeter with at least 10meg Ohms of impedance Fuel and battery vapors are highly flammable To pre vent an explosion keep all sparks heated items and open flames away from the battery and fuel fuel vapors DO NOT SMOKE NEAR THE VEHICLE http www obd2be com UERR OBD II Professional DUR ING 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 About V checker Applications V checker is a powerful handy scanner designed for all OBD2 compatible vehicles produced after 1996 It is small in size robust in design competitive in price and easy to use This is a stand alone unit it does not need a laptop computer to operate Available Functions Display DTC descriptions in text mode Read DTC Erase DTC Data Stream Freeze Frame Data Oxygen Sensor Test On Board Monitor http www obd2be com OE ORNET OBD II Professional Request Control Test ECU Information Main Features Display DTC descriptions in text mode Read live data Support all OBD2 protocols With professional mode With large DTC database Powered via diagnostic connector no additional power is needed Plug and play ease to use Turn off check engine light Displ
13. trol Label stating OBD Il Certified are OBD 2 compliant Data Link Connector DLC Location kek A ASHTRAY A LEFT CORNER OF DASH OF DASH The 16 pin DLC is usually located under the instrument panel dash within 12 inches 300 mm of center of the panel on the driver s side of most vehicles It should be easily accessible 8 http www obd2be com V checker OBD II Professional and visible from a kneeling position outside the vehicle with the door open 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 About DTCs Diagnostic Trouble Codes DTCs are meant to guide you to the proper service procedure in the vehicle s service manual DO NOT replace parts based only on DTCs without first 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 OBD 2 diagnostic trouble codes are made up of five characters The 1st character is a letter It identifies the main system w
14. ual 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 2 http www obd2be com Une OnReT OBD II Professional injury always be aware of moving parts 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 trouble shooting 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 V checker to or disconnecting the V checker from the vehicle s Data Link Connector DLC To prevent damage to the on boa
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