

COMMENTS ON TROUBLE SYMPTOM
PROBABLE CAUSES
DIAGNOSIS PROCEDURE
STEP 1. Power supply fuse check
Q.
Is the fuse in good condition?


STEP 2. Battery check

Q.
Is the battery in good condition?

STEP 3. Charging system check

Q.
Is the charging system in good condition?

STEP 4. M.U.T.-III data list
Q.
Is the check result normal?



STEP 5. Connector check: B-234 ETACS-ECU connector


Q.
Is the check result normal?


STEP 6. Check the wiring harness between B-234 ETACS-ECU connector terminal No.20 and the fusible link (1).





Q.
Is the check result normal?



STEP 7. Connector check: B-233 ETACS-ECU connector


Q.
Is the check result normal?


STEP 8. Check the wiring harness between B-233 ETACS-ECU connector terminal No.52 and the ignition switch (IG1).




Q.
Is the check result normal?



STEP 9. Check whether the diagnosis code is reset.
Q.
Is the diagnosis code set?
