INSPECTION PROCEDURE A-3: Door(s) or a tailgate cannot be locked or unlocked by central door locking system.
COMMENTS ON TROUBLE SYMPTOM
PROBABLE CAUSES
- Malfunction of the door lock actuator
- Malfunction of the tailgate lock actuator
- Damaged wiring harness and connectors
DIAGNOSIS PROCEDURE
STEP 1. Confirmation of the defective door lock actuator or tailgate lock actuator.
Q.
Which doors or tailgate is not locked normally?
STEP 2. Connector check: C-415 ETACS-ECU connector, F-14 front door lock actuator (LH) connector
Q.
Is the check result normal?
STEP 3. F-14 front door lock actuator (LH) check
Q.
Is the check result normal?
STEP 4. Check of the wiring harness between the C-415 ETACS-ECU connector terminal No. 2,6 <LH drive vehicles> or No. 5,6 <RH drive vehicles>, and F-14 front door lock actuator (LH) connector terminal No. 2, 1
| note | Prior to the wiring harness inspection, check C-224 intermediate connector and repair
if necessary. |
- Check the input/output line for open circuit.
Q.
Is the check result normal?
STEP 5. Connector check: C-415 ETACS-ECU connector, F-06 front door lock actuator (RH) connector
Q.
Is the check result normal?
STEP 6. F-06 front door lock actuator (RH) check
Q.
Is the check result normal?
STEP 7. Check of the wiring harness between the C-415 ETACS-ECU connector terminal No. 5,6 <LH drive vehicles> or No. 2,6 <RH drive vehicles>, and the F-06 front door lock actuator (RH) connector terminal No. 3, 4
| note | Prior to the wiring harness inspection, check C-211 intermediate connector and repair
if necessary. |
- Check the input/output line for open circuit.
Q.
Is the check result normal?
STEP 8. Connector check: C-413 ETACS-ECU connector, F-25 rear door lock actuator (LH) connector
Q.
Is the check result normal?
STEP 9. F-25 rear door lock actuator (LH) check
Q.
Is the check result normal?
STEP 10. Check of the wiring harness between the C-413 ETACS-ECU connector terminal No. 6, 9 and the F-25 rear door lock actuator (LH) connector terminal No. 2, 1
| note | Prior to the wiring harness inspection, F-22 intermediate connector and repair if necessary. |
- Check the input/output line for open circuit.
Q.
Is the check result normal?
STEP 11. Connector check: C-413 ETACS-ECU connector, F-18 rear door lock actuator (RH) connector
Q.
Is the check result normal?
STEP 12. F-18 rear door lock actuator (RH) check
Q.
Is the check result normal?
STEP 13. Check of the wiring harness between the C-413 ETACS-ECU connector terminal No. 6, 9 and the F-18 rear door lock actuator (RH) connector terminal No. 3, 4
| note | Prior to the wiring harness inspection, check F-21 intermediate connector and repair if
necessary. |
- Check the input/output line for open circuit.
Q.
Is the check result normal?
STEP 14. Connector check: G-10 tailgate lock actuator connector
Q.
Is the check result normal?
STEP 15. Tailgate lock actuator check
Q.
Is the check result normal?
STEP 16. Resistance measurement at G-10 tailgate lock actuator connector
| (1)Disconnect the connector, and measure at the wiring harness side. |
| (2)Measure the resistance between the G-10 tailgate lock actuator connector terminal
No. 2 and the body earth. OK: Continuity exists (2 Ω or less) |
Q.
Is the check result normal?
STEP 17. Check of the wiring harness between the G-10 tailgate lock actuator connector terminal No. 2 and the body earth
| note | Prior to the wiring harness inspection, check G-23 intermediate connector, and repair
if necessary. |
- Check the earth wire for open circuit.
Q.
Is the check result normal?
STEP 18. Connector check: C-413 ETACS-ECU connector
Q.
Is the check result normal?
STEP 19. Check of the wiring harness between the C-413 ETACS-ECU connector terminal No. 1 and the G-10 tailgate lock actuator connector terminal No. 1
| note | Prior to the wiring harness inspection, check G-23 intermediate connectors, and repair
if necessary. |
Q.
Is the check result normal?