
OPERATION


FUNCTION
TROUBLE JUDGMENT
PROBABLE CAUSE
DIAGNOSIS PROCEDURE
STEP 1. Check battery.


Q.
Is the check result normal?

STEP 2. Connector check: A-09 engine-ECU connector

Q.
Is the check result normal?

STEP 3. Perform voltage measurement at A-09 engine-ECU connector.

Q.
Is the check result normal?


STEP 4. Connector check: B-240 ignition switch connector


Q.
Is the check result normal?
STEP 5. Connector check: B-240 ignition switch connector

Q.
Is the check result normal?

STEP 6. Check harness between B-240 (terminal No. 2) ignition switch connector and A-09 (terminal No. 122) engine-ECU connector.


Q.
Is the check result normal?

STEP 7. Connector check: B-206 engine control relay connector

Q.
Is the check result normal?

STEP 8. Check engine control relay itself.


Q.
Is the check result normal?

STEP 9. Check harness between B-206 (terminal No. 2) engine control relay connector and A-09 (terminal No. 107) engine-ECU connector.


Q.
Is the check result normal?

STEP 10. M.U.T.-III diagnosis code
Q.
Is diagnosis code set?
