INSPECTION PROCEDURE
2: Door(s) or a tailgate cannot be locked or unlocked by central door locking system.
COMMENTS ON TROUBLE SYMPTOM
No operation of the door lock actuator or a malfunction of the tailgate lock actuator
is suspected.
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?
Front left door
: Go to Step 2.
Front right door : Go to Step 4.
Rear left door : Go to Step 6.
Rear right door : Go to Step 8.
Tailgate : Go to Step 10.
STEP 2. Front door lock actuator (LH) check
Check that the front door lock actuator (LH) works normally. Refer to Door Latch Assembly
Inspection 
.
Q.
Is the check result normal?
Go to Step 3.
Replace the front door lock actuator (LH).
STEP 3. Check of short to power supply, short to earth, and open circuit
in RR-L, RL-U line between the ETACS-ECU connector and front door lock actuator (LH) connector
Q.
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunction ).
Repair the wiring harness.
STEP 4. Front door lock actuator (RH) check
Check that the front door lock actuator (RH) works normally. Refer to Door Latch Assembly
Inspection .
Q.
Is the check result normal?
Go to Step 5.
Replace the front door lock actuator (RH).
STEP 5. Check of short to power supply, short to earth, and open circuit
in RR-L, RL-U line between the ETACS-ECU connector and the front door lock actuator (RH) connector
Q.
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunction ).
Repair the wiring harness.
STEP 6. Rear door lock actuator (LH) check
Check that the rear door lock actuator works normally. Refer to Door Latch Assembly Inspection .
Q.
Is the check result normal?
Go to Step 7.
Replace the rear door lock actuator (LH).
STEP 7. Check of short to power supply, short to earth, and open circuit
in RR-L, RL-U line between the ETACS-ECU connector and the rear door lock actuator (LH) connector
Q.
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunction ).
Repair the wiring harness.
STEP 8. Rear door lock actuator (RH) check
Check that the rear door lock actuator (RH) is in good condition. Refer to Door Latch
Assembly Inspection .
Q.
Is the check result normal?
Go to Step 9.
Replace the rear door lock actuator (RH).
STEP 9. Check of short to power supply, short to earth, and open circuit
in RR-L, RL-U line between the ETACS-ECU connector and the rear door lock actuator (RH) connector
Q.
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunction ).
Repair the wiring harness.
STEP 10. Tailgate lock actuator check
Check that the tailgate lock actuator is in good condition. Refer to .
Q.
Is the check result normal?
Go to Step 11.
Replace the tailgate lock actuator.
STEP 11. Check of short to power supply, short to earth, and open
circuit in RR-L, RL-U line between the ETACS-ECU connector and the tailgate lock actuator connector
Q.
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunction ).
Repair the wiring harness.