
OPERATION
FUNCTION
TROUBLE JUDGMENT
PROBABLE CAUSES
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III data list


Q.
Is the check result normal?


STEP 2. Connector check: A-149 No. 1 exhaust gas temperature sensor connector

Q.
Is the check result normal?

STEP 3. Check No. 1 exhaust gas temperature sensor itself.


Q.
Is the check result normal?


STEP 4. Perform voltage measurement at A-149 No. 1 exhaust gas 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-149 (terminal No. 1) No. 1 exhaust gas temperature sensor connector and C-105 (terminal No. 58) 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-149 No. 1 exhaust gas 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-149 (terminal No. 2) No. 1 exhaust gas temperature sensor connector and C-105 (terminal No. 82) engine-ECU connector.


Q.
Is the check result normal?

STEP 11. Connector check: C-105 engine-ECU connector.

Q.
Is the check result normal?

STEP 12. Check harness between A-149 (terminal No. 1) No. 1 exhaust gas temperature sensor connector and C-105 (terminal No. 58) engine-ECU connector.


Q.
Is the check result normal?
