DTC Check / Clear
WARNING: This page is about a different car, the 2006 Lexus GS 430 and 2006 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
- START DIAGNOSTIC MODE
HINT:
- Illustrations may differ from the actual vehicle depending on the device settings and options.
- Turn the engine switch on (ACC), and then check that the map is displayed before starting the diagnostic mode. Otherwise, some items cannot be checked.
- There are 2 methods to start diagnostic mode.
- Method 1
- Start the engine.
- While pressing and holding the "INFO" switch, turn the light control switch as follows: TAIL --> OFF --> TAIL --> OFF --> TAIL --> OFF.
- The diagnostic mode starts and the "System Check Mode" screen will be displayed. Service inspection starts automatically and the result will be displayed.
- Method 2
- Start the engine.
- Press the "DISP" switch.
- Touch the corners of the screen in the following order: upper left --> lower left --> upper left --> lower left --> upper left --> lower left.
- The diagnostic mode starts and the "System Check Mode" screen will be displayed. Service inspection starts automatically and the result will be displayed.
- Diagnosis MENU
- The "Diagnostic MENU" screen will be displayed by pressing Menu on the "System Check Mode" screen.
- FINISH DIAGNOSTIC MODE
- There are 2 methods to end diagnostic mode.
- Turn the engine switch off.
- Press and hold the "DISP" switch for 3 seconds.
- There are 2 methods to end diagnostic mode.
- CHECK DTC
HINT:
Illustrations may differ from the actual vehicle depending on the device settings and options.
- Start diagnostic mode.
- Read the system check result.
- If the check result is "EXCH", "CHEK" or "Old", touch the display to check its contents.
HINT:
- If all check results are "OK", go to the communication DTC check.
- If a device name is not known, its physical address is displayed.
- To return to the "System Check Mode" screen, press Service.
- If the check result is "EXCH", "CHEK" or "Old", touch the display to check its contents.
- Read the communication diagnostic check result.
- Return to the "System Check Mode" screen, and press LAN Mon to enter the "LAN Monitor" screen.
- If the check result is "CHEK" or "Old", touch the display to check its contents.
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.
- To return to the original "LAN Monitor" screen, press Service.
- CLEAR/RECHECK DTC
HINT:
Illustrations may differ from the actual vehicle depending on the device settings and options.
- Start diagnostic mode.
- Clear DTC.
- Press Code CLR for 3 seconds.
- DTC is cleared.
- Recheck DTC.
- Press Recheck.
- Confirm that all diagnostic codes are "OK" when the check results are displayed. If a code other than "OK" is displayed, perform troubleshooting again.
- Press LAN Mon to change to the "LAN Monitor" screen.
- Confirm that all diagnostic codes are "No Err". If a code other than "No Err" is displayed, perform troubleshooting again.