

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-38 brake vacuum sensor connector

Q.
Is the check result normal?

STEP 3. Perform voltage measurement at A-38 brake vacuum sensor connector.

Q.
Is the check result normal?


STEP 4. Connector check: A-09 engine-ECU connector

Q.
Is the check result normal?

STEP 5. Check harness between A-38 (terminal No. 3) brake vacuum sensor connector and A-09 (terminal No. 127) engine-ECU connector.


Q.
Is the check result normal?

STEP 6. M.U.T.-III data list


Q.
Is the check result normal?


STEP 7. Perform resistance measurement at A-38 brake vacuum sensor connector.

Q.
Is the check result normal?


STEP 8. Connector check: A-09 engine-ECU connector

Q.
Is the check result normal?

STEP 9. Check harness between A-38 (terminal No. 2) brake vacuum sensor connector and A-09 (terminal No. 130) engine-ECU connector.


Q.
Is the check result normal?

STEP 10. Connector check: A-09 engine-ECU connector

Q.
Is the check result normal?

STEP 11. Check harness between A-38 (terminal No. 3) brake vacuum sensor connector and A-09 (terminal No. 127) engine-ECU connector.


Q.
Is the check result normal?

STEP 12. Perform voltage measurement at A-38 brake vacuum sensor connector.

Q.
Is the check result normal?


STEP 13. Check harness between A-38 (terminal No. 1) brake vacuum sensor connector and A-09 (terminal No. 128) engine-ECU connector.


Q.
Is the check result normal?
STEP 14. Perform voltage measurement at A-09 engine-ECU connector.

Q.
Is the check result normal?


STEP 15. Connector check: A-09 engine-ECU connector

