INSPECTION PROCEDURE A-2: A Door or A Tailgate cannot be Locked or Unlocked by The 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

DIAGNOSTIC PROCEDURE


STEP 1. Confirmation of the defective door lock actuator or tailgate lock actuator


Q. Which door or tailgate is not locked normally?











STEP 2. Connector check: C-315 ETACS-ECU connector, E-20 front door lock actuator (driver’s side) connector


Q. Is the check result normal?





STEP 3. Front door lock actuator (driver’s side) check



Q. Is the check result normal?





STEP 4. Check of the wiring harness between the C-315 ETACS-ECU connector terminal Nos. 5, 6 and E-20 front door lock actuator (driver’s side) connector terminal Nos. 6, 4


note Prior to the wiring harness inspection, check intermediate connector C-129, and repair if necessary.

  • Check the input/output line for open circuit.

Q. Is the check result normal?





STEP 5. Connector check: C-315 ETACS-ECU connector, E-08 front door lock actuator (passenger’s side) connector


Q. Is the check result normal?





STEP 6. Front door lock actuator (passenger’s side) check



Q. Is the check result normal?





STEP 7. Check of the wiring harness between the C-315 ETACS-ECU connector terminal Nos. 5, 6 and the E-08 front door lock actuator (passenger’s side) connector terminal Nos. 6, 4


note Prior to the wiring harness inspection, check intermediate connector C-114, and repair if necessary.

  • Check the input/output line for open circuit.

Q. Is the check result normal?





STEP 8. Connector check: C-311 ETACS-ECU connector, E-12 rear door lock actuator (RH) connector


Q. Is the check result normal?





STEP 9. Rear door lock actuator (RH) check



Q. Is the check result normal?





STEP 10. Check of the wiring harness between the C-311 ETACS-ECU connector terminal Nos. 6, 9 and the E-12 rear door lock actuator (RH) connector terminal Nos. 6, 4


note Prior to the wiring harness inspection, check intermediate connector D-30, and repair if necessary.

  • Check the input/output line for open circuit.

Q. Is the check result normal?





STEP 11. Connector check: C-311 ETACS-ECU connector, E-26 rear door lock actuator (LH) connector


Q. Is the check result normal?





STEP 12. Rear door lock actuator (LH) check



Q. Is the check result normal?





STEP 13. Check of the wiring harness between the C-311 ETACS-ECU connector terminal Nos. 6, 9 and the E-26 rear door lock actuator (LH) connector terminal Nos. 6, 4


note Prior to the wiring harness inspection, check intermediate connector D-23, and repair if necessary.

  • Check the input/output line for open circuit.

Q. Is the check result normal?





STEP 14. Connector check: F-13 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 F-13 tailgate lock actuator connector


(1)Disconnect the connector, and measure at the wiring harness side.
(2)Measure the resistance between the F-13 tailgate lock actuator connector terminal No. 2 and the body earth.
OK: Continuity (less than 2Ω)

Q. Is the check result normal?





STEP 17. Check of the wiring harness between the F-13 tailgate lock actuator connector terminal No. 2 and the body earth



  • Check the earth wires for open circuit.

Q. Is the check result normal?





STEP 18. Connector check: C-311 ETACS-ECU connector


Q. Is the check result normal?





STEP 19. Check of the wiring harness between the C-311 ETACS-ECU connector terminal No. 1 and the F-13 tailgate lock actuator connector terminal No. 1



note Prior to the wiring harness inspection, check D-12 intermediate connector, and repair if necessary.

Q. Is the check result normal?