

OPERATION
FUNCTION
TROUBLE JUDGMENT
PROBABLE CAUSES
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III data list
Q.
Is the check result normal?


STEP 2. Connector check: A-108 engine coolant temperature sensor connector

Q.
Is the check result normal?

STEP 3. Perform resistance measurement at A-108 engine coolant temperature sensor connector.

Q.
Is the check result normal?

STEP 4. Perform resistance measurement at A-108 engine coolant temperature sensor connector.

Q.
Is the check result normal?


STEP 5. Connector check: A-08 engine-ECU connector
Q.
Is the check result normal?


STEP 6. Check harness between A-108 (terminal No. 2) engine coolant temperature sensor connector and A-08 (terminal No. 29) engine-ECU connector.


Q.
Is the check result normal?

STEP 7. M.U.T.-III data list
Q.
Is the check result normal?


STEP 8. Perform voltage measurement at A-108 engine coolant temperature sensor connector.

Q.
Is the check result normal?


STEP 9. Perform voltage measurement at A-08 engine-ECU connector.


Q.
Is the check result normal?


STEP 10. Connector check: A-08 engine-ECU connector


Q.
Is the check result normal?
STEP 11. Connector check: A-08 engine-ECU connector

Q.
Is the check result normal?

STEP 12. Check harness between A-108 (terminal No. 1) engine coolant temperature sensor connector and A-08 (terminal No. 14) engine-ECU connector.


Q.
Is the check result normal?

STEP 13. Perform voltage measurement at A-108 engine coolant temperature sensor connector.

Q.
Is the check result normal?


STEP 14. Connector check: A-08 engine-ECU connector

Q.
Is the check result normal?

STEP 15. Check harness between A-108 (terminal No. 1) engine coolant temperature sensor connector and A-08 (terminal No. 14) engine-ECU connector.


Q.
Is the check result normal?
