[54D] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - CENTRAL DOOR LOCKING SYSTEM - INSPECTION PROCEDURE C-1: Central door locking system does not work. <LH driver vehicles>PRINT PAGE / INDEX / PRIOR / NEXT
CENTRAL DOOR LOCKING SYSTEM
INSPECTION PROCEDURE C-1: Central door locking system does not work. <LH driver vehicles>
 CAUTION
 Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If the central door locking system does not work at all, the driver's door lock actuator or the ETACS-ECU may be defective.
POSSIBLE CAUSES
  • Malfunction of the driver's door lock actuator
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Check the power supply circuit.
When the ignition switch is turned to the LOCK (OFF) position, check if the hazard warning lamps illuminate.
Q: Is the check result normal?
YES:  Go to Step 2.
NO:  Refer to Inspection Procedure A-2 "Check the ETACS-ECU battery power supply circuit ."
Step 2. Pulse check
Check the input signal from the driver's door lock actuator switch.
System switch
 Check condition
Driver's door lock actuator switch
 When the driver's key cylinder or inside lock knob is unlocked or locked

OK: The MUT-II/III sounds or the voltmeter needle fluctuates.
Q: Is the check result normal?
YES:  Go to Step 3.
NO:  Refer to Inspection Procedure P-13 "The driver's door lock actuator signal is not received ."
Step 3. Connector check: E-11 driver's door lock actuator connector
Q: Is the check result normal?
YES:  Go to Step 4.
NO:  Repair the defective connector.
Step 4. Driver's door lock actuator check
Check that the driver's door lock actuator works normally. Refer to GROUP 42 - Door .
Q: Is the check result normal?
YES:  Go to Step 5.
NO:  Replace the driver's door lock actuator.
Step 5. Connector check: C-217 ETACS-ECU connector
Q: Is the check result normal?
YES:  Go to Step 6.
NO:  Repair the defective connector.
Step 6. Check the wiring harness between C-217 ETACS-ECU connector terminal No.20 and fusible link (1).
NOTE: Prior to the wiring harness inspection, check intermediate connector C-116 and junction block connector C-204, and repair if necessary.
  • Check the power supply line for open circuit.
Q: Is the check result normal?
YES:  Go to Step 7.
NO:  Repair the wiring harness.
Step 7. Retest the system.
Check that the central door locking system works normally.
Q: Is the check result normal?
YES:  The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
NO:  Replace the ETACS-ECU.
[54D] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - CENTRAL DOOR LOCKING SYSTEM - INSPECTION PROCEDURE C-1: Central door locking system does not work. <LH driver vehicles>PRINT PAGE / INDEX / PRIOR / NEXT
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