
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-135 air flow sensor connector

Q.
Is the check result normal?

STEP 3. Perform voltage measurement at A-135 air flow sensor connector.

Q.
Is the check result normal?


STEP 4. Connector check: A-20X engine control relay connector


Q.
Is the check result normal?
STEP 5. Perform resistance measurement at A-135 air flow sensor connector.

Q.
Is the check result normal?


STEP 6. Connector check: C-103 engine-ECU connector

Q.
Is the check result normal?

STEP 7. Check harness between A-135 (terminal No. 4) air flow sensor connector and C-103 (terminal No. 155) engine-ECU connector.


Q.
Is the check result normal?

STEP 8. M.U.T.-III data list




Q.
Is the check result normal?




STEP 9. Perform voltage measurement at A-135 air flow sensor connector.

Q.
Is the check result normal?


STEP 10. Connector check: C-103 engine-ECU connector

Q.
Is the check result normal?

STEP 11. Check harness between A-135 (terminal No. 3) air flow sensor connector and C-103 (terminal No. 140) engine-ECU connector.


Q.
Is the check result normal?
STEP 12. Perform voltage measurement at C-103 engine-ECU connector.


Q.
Is the check result normal?


STEP 13. Connector check: C-103 engine-ECU connector


Q.
Is the check result normal?
STEP 14. Connector check: C-103 engine-ECU connector

Q.
Is the check result normal?
