Diagnosis Procedure
- CHECK FUSE
Check for blown fuses.
Power source Fuse No. Battery 34 Ignition switch ACC or ON 19 Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Be sure to eliminate cause of malfunction before installing new fuse.
- CHECK POWER SUPPLY CIRCUIT
Check voltage between TEL adapter unit harness connector and ground.
Signal name Connector No. Terminal No. Ignition switch position Value (Approx.) Battery power supply B237 1 OFF Battery voltage ACC power supply B237 2 ACC Battery voltage Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Check harness between TEL adapter unit and fuse.
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect TEL adapter unit connector.
- Check continuity between TEL adapter unit harness connector and ground.
Signal name Connector No. Terminal No. Ignition switch position Continuity Ground B237 4, 14 OFF Existed
Is the inspection result normal?
YES
INSPECTION END
NO
Repair harness or connector.