

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


STEP 2. Connector check: A-107 engine coolant temperature sensor connector

Q.
Is the check result normal?

STEP 3. Perform resistance measurement at A-107 engine coolant temperature sensor connector.

Q.
Is the check result normal?

STEP 4. Perform voltage measurement at A-107 engine coolant temperature sensor connector.

Q.
Is the check result normal?


STEP 5. Connector check: C-105 engine-ECU connector
Q.
Is the check result normal?


STEP 6. Check harness between A-107 (terminal No. 1) engine coolant temperature sensor connector and C-105 (terminal No. 63) 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 resistance measurement at A-107 engine coolant temperature sensor connector.

Q.
Is the check result normal?


STEP 9. Connector check: C-105 engine-ECU connector

Q.
Is the check result normal?

STEP 10. Check harness between A-107 (terminal No. 2) engine coolant temperature sensor connector and C-105 (terminal No. 87) engine-ECU connector.


Q.
Is the check result normal?
