Diagnosis Procedure
- PERFORM DTC CONFIRMATION PROCEDURE
- Turn Ignition Switch ON.
- Check "Self diagnostic result" with CONSULT.
- Erase the DTC.
- Perform DTC confirmation procedure. Refer to DTC Logic .
Is the DTC displayed again?
YES
GO TO 2.
NO
Check intermittent incident. Refer to Intermittent Incident .
- CHECK UART COMMUNICATION LINE CONTINUITY
- Turn Ignition Switch OFF.
- Disconnect Driver Seat Control Unit and Automatic Drive Positioner Control Unit connector.
- Check continuity between Driver Seat Control Unit harness connector and Automatic Drive Positioner Control Unit harness connector.
Driver Seat Control Unit
Automatic Drive Positioner Control Unit
Continuity
Connector
Terminal
Connector
Terminal
B514
32
M51
8
Existed
- Check continuity between Driver Seat Control Unit harness connector and ground.
Driver Seat Control Unit
Ground
Continuity
Connector
Terminal
B514
32
Not existed
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace harness or connector.