Inspection Procedure C-2

Central Door Locking System: Some Doors Do Not Lock or UnlockDoor Lock Actuator Circuit

- Refer to Inspection Procedure C-1.

CIRCUIT OPERATION
- The ETACS-ECU operates the door lock actuators through its dedicated relay (integrated in the ETACS-ECU).
- The ETACS-ECU drives the relay to lock or unlock the door if the requirements are satisfied.

TECHNICAL DESCRIPTION (COMMENT)
The door lock actuator, or the harness wire between ETACS-ECU and the door lock actuator may be defective.

TROUBLESHOOTING HINTS
- Malfunction of the driver's or passenger's door lock actuator
- Malfunction of the ETACS-ECU
- Damaged harness wires or connectors

DIAGNOSIS

STEP 1. Check the location of malfunction.

Q: Which door lock does not function?
Driver's door: Go to Step 2.
Passenger's door: Go to Step 5.







STEP 2. Check the driver's door lock actuator operation.
Remove the driver's door lock actuator to check. (Refer to Door - Door Handle and Latch.)

Q: Is the driver's door lock actuator in good condition?

YES: Go to Step 3.

NO: Replace the driver's door lock actuator. All doors should be locked or unlocked.







STEP 3. Check the ETACS-ECU connector C-114 and driver's door lock actuator connector E-13 for damage.

Q: Are ETACS-ECU connector C-114 and driver's door lock actuator connector E-13 in good condition?

YES: Go to Step 4.

NO: Repair or replace them. Refer to Harness Connector Inspection. All doors should be locked or unlocked.













STEP 4. Check the harness wires between ETACS-ECU connector C-114 and driver's door lock actuator connector E-13.

NOTE: After checking junction block connectors C-104 and C-107 and intermediate connector C-91, check the wires. If junction block connectors C-104 and C-107 and intermediate connector C-91 are damaged, repair or replace them. Refer to Harness Connector Inspection.

Q: Are the harness wires between ETACS-ECU connector C-114 and driver's door lock actuator connector E-13 in good condition?

YES: Replace the ETACS-ECU. All doors should be locked or unlocked.

NO: Repair them. All doors should be locked or unlocked.







STEP 5. Check the passenger's door lock actuator operation.
Remove the passenger's door lock actuator to check. (Refer to Door Handle and Latch)

Q: Is the passenger's door lock actuator in good condition?

YES: Go to Step 6.

NO: Replace the passenger's door lock actuator. All doors should be locked or unlocked.







STEP 6. Check the ETACS-ECU connector C-114 and passenger's door lock actuator connector E-07 for damage.

Q: Are ETACS-ECU connector C-114 and passenger's door lock actuator connector E-07 In good condition?

YES: Go to Step 7.

NO: Repair or replace them. Refer to Harness Connector Inspection. All doors should be locked or unlocked.













STEP 7. Check the harness wires between ETACS-ECU connector C-114 and passenger's door lock actuator connector E-07.

NOTE: After checking junction block connector C-104 and intermediate connector C-95, check the wires. If junction block connector C-104 and intermediate connector C-95 are damaged, repair or replace them. Refer to Harness Connector Inspection.

Q: Are the harness wires between ETACS-ECU connector C-114 and passenger's door lock actuator connector E-07 in good condition?

YES: Replace the ETACS-ECU. All doors should be locked or unlocked.

NO: Repair them. All doors should be locked or unlocked.