

OPERATION
FUNCTION
TROUBLE JUDGMENT
PROBABLE CAUSES
DIAGNOSIS PROCEDURE
STEP 1. Connector check: A-127 alternator connector

Q.
Is the check result normal?

STEP 2. Perform voltage measurement at A-127 alternator connector.

Q.
Is the check result normal?


STEP 3. Connector check: A-08 engine-ECU connector.

Q.
Is the check result normal?

STEP 4. Check harness between A-127 (terminal No. 4) alternator connector and A-08 (terminal No. 54) engine-ECU connector.


Q.
Is the check result normal?

STEP 5. M.U.T.-III diagnosis code
Q.
Is the diagnosis code set?


STEP 6. Perform voltage measurement at A-08 engine-ECU connector.

Q.
Is the check result normal?


STEP 7. Check harness between A-127 (terminal No. 4) alternator connector and A-08 (terminal No. 54) engine-ECU connector.


Q.
Is the check result normal?

STEP 8. M.U.T.-III diagnosis code
Q.
Is the diagnosis code set?
