Inspection Procedure 13: No. 1 Injector System












OPERATION




FUNCTION




PROBABLE CAUSES




DIAGNOSIS PROCEDURE


STEP 1. Connector check: B-03 glow and injector intermediate connector


Q. Is the check result normal?

Go to Step 2 .
Repair or replace the connector.

STEP 2. Connector check: B-05 engine-ECU connector


Q. Is the check result normal?

Go to Step 3 .
Repair or replace the connector.

STEP 3. Check harness between B-03 (terminal No. 6) glow and injector intermediate connector and B-05 (terminal No. 16 and terminal No. 17) engine-ECU connector.



  • Check power supply for open/short circuit and damage.

Q. Is the check result normal?

Go to Step 4 .
Repair the damaged harness wire.

STEP 4. Check harness between B-03 (terminal No. 10) glow and injector intermediate connector and B-05 (terminal No. 1) engine-ECU connector.



  • Check earthing line for open/short circuit and damage.

Q. Is the check result normal?

Go to Step 5 .
Repair the damaged harness wire.

STEP 5. Connector check: B-03-5 No. 1 injector connector


Q. Is the check result normal?

Go to Step 6 .
Repair or replace the connector.

STEP 6. Check harness between B-03-5 (terminal No. 1) No. 1 injector connector and B-03 (terminal No. 10) glow and injector intermediate connector.



  • Check earthing line for open/short circuit and damage.

Q. Is the check result normal?

Go to Step 7 .
Repair the damaged harness wire.

STEP 7. Check harness between B-03-5 (terminal No. 2) No. 1 injector connector and B-03 (terminal No. 6) glow and injector intermediate connector.



  • Check power supply line for open/short circuit and damage.

Q. Is the check result normal?

Go to Step 8 .
Repair the damaged harness wire.

STEP 8. Replace the No. 1 injector.



  • After replacing the No. 1 injector, re-check the trouble symptoms.

Q. Does trouble symptom persist?

Go to Step 9 .
The check is end.

STEP 9. Check the trouble symptoms.


Q. Does trouble symptom persist?

Replace the engine-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).