

OPERATION
FUNCTION
TROUBLE JUDGMENT
PROBABLE CAUSES
DIAGNOSTIC PROCEDURE
STEP 1. Connector check: A-151 glow control unit connector

Q.
Is the check result normal?

STEP 2. Connector check: A-153 No. 1 glow plug connector, A-154 No. 2 glow plug connector, A-155 No. 3 glow plug connector and A-156 No. 4 glow plug connector.

Q.
Is the check result normal?

STEP 3. Check harness between A-151 (terminal No.1) glow control unit connector and A-153 (terminal No.1) No.1 glow plug connector.


Q.
Is the check result normal?

STEP 4. Check harness between A-151 (terminal No. 2) glow control unit connector and A-154 (terminal No. 1) No.2 glow plug connector.


Q.
Is the check result normal?

STEP 5. Check harness between A-151 (terminal No. 3) glow control unit connector and A-155 (terminal No. 1) No.3 glow plug connector.


Q.
Is the check result normal?

STEP 6. Check harness between A-151 (terminal No. 4) glow control unit connector and A-156 (terminal No. 1) No.4 glow plug connector.


Q.
Is the check result normal?

STEP 7. Replace the glow control unit.
Q.
Is the diagnosis code set?


