Chapter 3 Operations - Snap-on
Contents
1. Functions SELECT CODE FUNCTIONS AUTO CODE YES SELECT AUTO ACTIVATE VEHICLE SCAN TOOL READS READ CODE READ CODE OUTPUT AND TAGS CODES NO MANUAL CODE ACTIVATE VEHICLE ENTRY YES Cane Gumi READ CODES NO SELECT MANUAL CODE OTHER TEST FUNCTIONS USE SCAN TOOL FOR TAG CODES CODE DEFINITIONS FIX THE PROBLEM CLEAR CODES RESET ECM RE CHECK FOR CODES Figure 3 28 Basic Code Functions Auto Code Read and Manual Code Entry 3 6 1 Reading Different Code Types Depending on the vehicle the diagnostic connector may have automatic code reading or you may have to read codes by observing a flashing lamp LEDs After you enter the vehicle ID the scan tool tells you which type of system is on the vehicle you are testing MANUAL CODE ENTRY is used when the AUTO CODE READ selection is not available or when you prefer to enter a code manually For vehicles with diagnostic connectors that have automatic code reading connection instructions for code reading display at the end of the vehicle ID sequence Instructions for activating flash codes are available by selecting HOW TO GET CODES How to Get Codes on page 15 Flash Codes Different types of code pulse patterns are used by different manufacturers for different models When a vehicle has indicator lamps LEDs that flash trouble codes the scan tool gives you the code type used for the vehicle you are testing and key words to describe the type of code flashing pattern2. however the AUTO CODE READ function lets the scan tool clear codes automatically Figure 3 32 CLEAR CODES FROM VEHICLE MEMORY ARE YOU SURE PRESS Y OR N Figure 3 32 Clear Codes Confirmation screen If you press Y the scan tool displays the following message Figure 3 33 CLEAR CODES FROM VEHICLE MEMORY CLEARING CODES WAIT PRESS N TO RESUME Figure 3 33 Clearing Codes screen When all codes are erased the display changes to the following Figure 3 34 CLEAR CODES FROM VEHICLE MEMORY CODES ERASED FROM VEHICLE MEMORY PRESS N TO RESUME Figure 3 34 Codes Cleared screen NOTE If the vehicle ECM does not receive the code clearing command the CLEARING CODES WAIT message stays on the screen indefinitely 14 3 6 4 Printing Codes See the manual for your diagnostic tool for information about setting up a printer 3 6 5 Manual Code Entry If you are testing a vehicle that can only display codes manually you receive connection instructions from the Connection Instruction screen Figure 3 35 MANUAL CODES ONLY FOR CODE LIST USE POWER PAC OR USE MULTI 1 WITH GROUND EXTENSION amp EITHER POWER CABLE PRESS Y TO CONTINUE Figure 3 35 Sample Connection Instruction screen for manual codes only Select HOW TO GET CODES from the Code Function menu to see on screen instructions about reading manual codes from the vehicle you are testing 3 6 6 How to Get Codes Selecting HOW TO GET CODES giv
3. CODES 11 14 SCROLL amp PRESS Y TO DELETE CLEARED CODES gt 11 INTAKE AIR TEMP CIRCUIT PROBLEM 14 ATMOSPHERIC PRESSURE SENSOR CIRCUIT Figure 3 30 Sample Auto Code Read screen LEDs flash simultaneously with the codes as they are received by the scan tool NOTE Some vehicles transmit codes very slowly Allow several seconds after receiving any code to ensure that no more codes follow After you repair a problem or clear codes from the vehicle the code numbers next to INCOMING CODES are removed The individual lines with code numbers and titles remain on the AUTO CODE READ screen and in REVIEW CODES until you remove them manually P To delete cleared codes 1 Scroll to the line with the code that you want to remove 2 Press Y to clear the code 13 Code Functions The code number and title are removed from the list If the code has not been cleared from the ECM the number remains on the top line 3 6 3 Clearing Codes The CLEAR CODES selection is available from the Code Functions menu after codes have been received Selecting CLEAR CODES provides specific vehicle information for clearing ECM trouble codes Figure 3 31 TO CLEAR CODES DISCONNECT BATTERY GROUND CABLE DEPRESS amp HOLD BRAKE PEDAL FOR AT LEAST 5 SECONDS RECONNECT BATTERY amp RECHECK FOR CODES N TO EXIT Figure 3 31 Clear Codes screen Trouble codes are often cleared by removing the battery ground cable or removing a fuse In some cases
4. CROLL TO SELECT A MANUFACTURER gt TOYOTA OBDII GENERIC DEMO Figure 3 38 Sample Manufacturer Selection menu 2 Select DEMO A Vehicle Identification screen displays with DEMO in the first line indicating that you are in the demonstration program Figure 3 39 SELECT 10TH VIN CHARACTER DEMO i SS Sa Ne VEHICLE ENGINE Figure 3 39 Asian demo Vehicle Identification screen 3 Keep pressing Y to choose the defaults until the System Selection menu displays Figure 3 40 SELECT SYSTEM gt ENGINE ANTI LOCK BRAKES TRANSMISSION Figure 3 40 System Selection menu NOTE If Troubleshooter software is installed it will be accessible for demonstration purposes Make sure you select the system that matches the Troubleshooter software For example if you have a Transmission Troubleshooter installed make sure to select TRANSMISSION from the System Selection menu
5. Five general code patterns are used e Straight Count flashes the lamp or LED the number of times equal to the trouble code with a noticeable pause between multiple codes For example eight equal flashes is Code 8 e Tens Ones flashes a 2 digit trouble code with a noticeable pause between each digit The first set of flashes is the 10s digit the second set of flashes is the 1s digit For example FLASH FLASH pause FLASH FLASH FLASH is Code 23 e Long Short flashes a 2 digit trouble code with the 10s digit pulses staying on longer than the 1s digit pulses For example LONG LONG pause SHORT SHORT SHORT is Code 23 e Main code and Sub code main code will flash first then pause Sub code will follow e 4 LED turns on one to four LEDs to display a binary code The LEDs stay on until the code is cleared e 2 LED flashes a 2 digit trouble code with the 10s digit flashed on one LED and the 1s digit flashed on the other LED 3 6 2 Automatic Code Reading Selecting AUTO CODE READ from the Code Functions menu displays a screen like Figure 3 29 INCOMING CODES WAITING FOR CODES IF NO RESPONSE TRY INDUCING A CODE TO CHECK CODE GATHERING END OF LIST Figure 3 29 Incoming Codes screen If multiple codes are received the scan tool continues to add to the list Scroll to view the numbers and titles of all codes Code numbers appear on the top line in the order in which the ECM transmits them Figure 3 30 INCOMING
6. Operations This section explains how to begin using the scan tool s basic setup and test functions This information is specific to Asian Import vehicles For general scan tool functionality see the user s manual appropriate to your diagnostic tool Figure 3 1 outlines the general workflow of using the VCS software TEST SAME VEHICLE IN MEMORY NO VEHICLE IN MEMORY YES NO SELECT THE SOFTWARE IDENTIFY A VEHICLE SELECT A SYSTEM CONNECT TO THE VEHICLE CODE FUNCTIONS AUTO CODE READ CUSTOM SETUP CODES amp DATA FUNCTIONAL TESTS MANUAL CODE HOW TO GET ENTRY CLEAR CODES CODES PRINT CODES Figure 3 1 Basic Asian Import scan tool test operation NOTE i The exact order of test operation steps may vary depending on the test vehicle Be sure to follow all on screen instructions 3 1 Selecting the Software The first step in testing with the Vehicle Communication Software VCS is selecting the correct software for your test vehicle Two types of screens display when you turn on your scan tool Selecting the Software The initial menu Figure 3 2 displays if you do not have a vehicle in memory e The Current Vehicle ID screen Figure 3 3 displays if you have a vehicle in memory gt GLOBAL OBDII DOMESTIC Asian European Figure 3 2 nitial menu Current Vehicle Identification Is VEHICLE 2003 ACURA RSX ENGINE 2 0L L4 MFI K20A2 Press Y For Same Vehicle N For New ID Figure 3 3
7. Sample Current Vehicle Identification screen P To select the software from the initial menu 1 Select ASIAN Figure 3 2 The Year Range menu displays Figure 3 4 gt 1983 2005 Legacy Software Figure 3 4 Year Range menu Select the year range for the test vehicle The software loads for a moment and then the Software Confirmation screen displays Figure 3 5 gt ASIAN IMPORTS 1983 2005 Figure 3 5 Sample Software Confirmation screen Press Y to confirm the software The Manufacturer Selection menu displays Figure 3 6 SELECT MAKE gt ACURA CHRYSLER IMPORTS DAIHATSU Figure 3 6 Sample Manufacturer Selection menu 2002 2003 gt gt gt To select the software from the Current Vehicle ID screen 1 Press Y if you want to test the same vehicle or press N if you want to test a different vehicle Figure 3 5 If you pressed Y the Connection Instructions screen or System Selection menu displays See Selecting the Software on page 5 or Connecting to the Vehicle on page 8 to continue If you pressed N the Software Confirmation screen displays Figure 3 7 gt ASIAN IMPORTS 1983 2005 Figure 3 7 Sample Software Confirmation screen 2 Press Y to select the software displayed and go to the Manufacturer Selection menu Figure 3 6 If you want to select different software skip this step and go on to step 3 3 Exit back to the initial menu and select the software as
8. es instructions for observing codes manually or automatically depending on the vehicle Figure 3 36 The on screen instructions are supplemented in the manufacturer specific chapters of this manual FIND ECU BEHIND LEFT KICKPANEL TURN ECU SWITCH ON SEE MANUAL RED LED PULSES TENS DIGIT GREEN PULSES ONES CODE TYPE 07a Figure 3 36 Sample How to Get Codes screen 3 6 7 Reviewing Codes The REVIEW CODES selection is only available on the Code Functions menu after the scan tool has received codes from a vehicle either automatically or manually Selecting REVIEW CODES displays a screen similar to Figure 3 37 Scroll to view all codes CODE SUMMARY 12 22 23 31 55 k k k XCODE DEFINITIONS 12 AIRFLOW METER CKT OPEN OR SHORTED 22 FUEL PUMP CIRCUIT PROBLEM Figure 3 37 Sample Review Codes screen 15 Demonstration Programs 3 7 Demonstration Programs The Asian Import VCS contains a program that demonstrates many of the scan tool s test capabilities without actually connecting to a vehicle A sample vehicle ID and mock test results are provided to familiarize you with scan tool menus and basic operations NOTE The DEMO selection appears at the end of the list of available manufacturers for 2001 and earlier vehicles only P To access the demonstration program 16 1 Select the software as described in Selecting the Software on page 5 The Manufacturer Selection menu displays Figure 3 38 S
9. ons Figure 3 14 MT2500 46 OBD II adapter with Personality Key Figure 3 15 M7T2500 50 TOYOTA 1 adapter Figure 3 16 MT2500 52 TOYOTA 2 adapter MT2500 53 MAZDA 1 adapter Y Ray Figure 3 17 MT2500 40 NISSAN 1 adapter 12 pin Figure 3 20 M72500 51 HYUNDAI 2 adapter Figure 3 21 M7T2500 55 MITSU 1 adapter Connecting to the Vehicle Ag aa Figure 3 22 MT2500 43 Terminal Converters Figure 3 23 MT2500 41 Ground adapter Figure 3 25 MT2500 42 MULTI 2 Asian adapter A Ground B Mazda amp Ford 2E C lIsuzu amp Geo with GM system 2D D Subaru 2C E Mazda amp Ford 2B F Special applications 2A P To connect to a vehicle e Follow the on screen instructions and press Y when you are finished The main menu displays Figure 3 26 MAIN MENU CUSTOM SETUP gt CODES amp DATA MENU MOVIES FUNCTIONAL TESTS ACTUATOR TESTS Figure 3 26 Sample main menu 10 3 5 Main Menu Selections Depending on the vehicle the following main menu options may be available CODE FUNCTIONS lets you read and interpret electronic control module ECM diagnostic trouble codes DTCs CODES amp DATA lets you read input and output signals switches sensors and actuators See the manufacturer specific sections of the manual for specific information CODES amp DATA MENU lets you access a submenu of tests on OBD II vehicles FUNCTIONAL TESTS provides specific subsystem and component tests Tests va
10. previously described To exit back to the initial menu from ASIAN IMPORTS TO 2001 software Legacy Software 1 Press Y The Manufacturer Selection menu displays Figure 3 8 SCROLL TO SELECT A MANUFACTURER gt ACURA 1986 2001 CHRY IMPORTS 1984 2001 DAIHATSU 1988 1992 Figure 3 8 Sample Manufacturer Selection menu to 2001 2 Scroll to the end of the list and select EXIT THIS MENU The initial menu displays Figure 3 2 To exit back to the initial menu from ASIAN IMPORTS 1983 2005 software e Press N The initial menu displays Figure 3 2 3 2 Identifying a Vehicle After you have selected the software you are prompted to identify the test vehicle by entering vehicle identification number VIN characters and answering questions NOTE Because of midyear manufacturing changes in engine computer systems you should always enter a new identification when you test a different vehicle even when two vehicles are the same year model and have the same engine and accessories installed Selecting a System P To identify a vehicle 1 From the Manufacturer Selection menu Figure 3 8 select the vehicle manufacturer The first in a series of Vehicle Identification screens displays Figure 3 9 SELECT 10TH VIN CHARACTER VIN 3 VEHICLE 2003 ACURA ENGINE Figure 3 9 Sample Vehicle Identification screen 2 Scroll and press Y to enter VIN characters and press Y or N to answer any question
11. ry by make and model see the manufacturer specific sections of the manual for specifics ACTUATOR TESTS lets you check the operation of certain actuators such as solenoid valves and relays Tests vary by make and model see the manufacturer specific sections of the manual for specifics CUSTOM SETUP lets you customize certain scan tool functions See the manual for your diagnostic tool for details MOVIES lets you record and view data See the manual for your diagnostic tool for details 3 6 Code Functions Selecting CODE FUNCTIONS displays the Code Functions menu Figure 3 27 gt AUTO CODE READ MANUAL CODE ENTRY HOW TO GET CODES REVIEW CODES CLEAR CODES PRINT CODES Figure 3 27 Sample Code Functions menu Depending on the vehicle type six primary CODE FUNCTIONS selections may be available AUTO CODE READ reads all available electronic codes automatically Figure 3 28 HOW TO GET CODES helps you to locate the test connectors or code lamps for getting codes and helps you identify the code type CLEAR CODES clears erases trouble codes from the vehicle ECM memory PRINT CODES prints selected trouble code definitions MANUAL CODE ENTRY lets you read codes that can be identified by visual observation of a flashing lamp LED and manually entering data into the scan tool Figure 3 28 REVIEW CODES lets you review codes stored in scan tool memory either through automatic code reading or manual code entry 11 12 Code
12. s When you are finished a Vehicle ID Confirmation screen displays Figure 3 10 VIN N 2 3 VEHICLE 2003 ACURA NSX ENGINE 3 2L V6 MFI C32B1 PRESS Y TO CONTINUE N FOR NEW ID Figure 3 10 Sample Vehicle ID Confirmation screen 3 Press Y if the vehicle ID is correct or press N to identify a different vehicle The System Selection menu or Connection Instruction screen displays 3 3 Selecting a System A System Selection menu prompts you to select which vehicle control system to test Figure 3 11 Menus vary by manufacturer and model Refer to the manufacturer specific chapters of this manual for instructions on selecting a system to test SELECT SYSTEM gt ENGINE ANTI LOCK BRAKES TRANSMISSION Figure 3 11 Sample System Selection menu 3 4 Connecting to the Vehicle A Connection Instruction screen tells you how to connect the supplied vehicle test adapters to the test vehicle you identified Figure 3 12 CONNECT OBDII ADAPTER WITH K2A TO 16 PIN CONNECTOR UNDER GLOVEBOX NOTE CYCLE KEY OFF TO ON PRESS Y TO CONTINUE Figure 3 12 Sample Connection Instructions screen Each test adapter plugs into a specific vehicle diagnostic connector and attaches to one end of the data cable The other end of the data cable attaches to the scan tool The following adapters are available to connect the scan tool to Asian Import vehicles See the manufacturer specific chapters of this manual for connector locati
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