Without Scan Tool

SERVICE CHECK MODE (DTC CHECK)

HINT: The illustrations may differ depending on the device settings option, etc.). Therefore, some detailed areas, may not be shown exactly same as on the actual vehicle.

a. Start the diagnostic mode.




b. Read the service check result.

If all devices report is "EXCH", "CHEK" or "Old" touch the display to check the contents on the "Unit Check Mode" screen and fill them on the customer problem analysis check sheet.

HINT:
- If all check results are "OK" go to communication DTC check (Go to step 3).
- If a device name is not known, its physical address is displayed.






HINT: If "EXCH", "CHEK" and "Old" as well as "OK" exist, press the service switch to return to the "System Check Mode". Then, check the "Unit Check Mode" screen and fill them in on the customer problem analysis check sheet.




c. Read the communication diagnostic check result.
1. Return to the "System Check Mode", and press "LAN Mon" switch to enter the LAN monitor window.




2. If the result is "CHEK" or "Old" touch this display to check the contents on the "Unit Check Mode" screen and fill them in on the customer problem analysis check sheet.

HINT:
- If all check results are "No Err" the system judges that no DTC exists.
- The sub-code (relevant device) will be indicated by its physical address.






HINT: If other devices return "CHEK" press the "Service" switch to return to the "LAN Monitor" screen. Then, check the individual communication diagnostic screen for the next device and fill out the result on the customer problem analysis check sheet.