[54C] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - CENTRAL DOOR LOCKING SYSTEM - INSPECTION PROCEDURE C-1: Central Door Locking System does not Work. | PRINT PAGE / INDEX / PRIOR / NEXT

| CENTRAL DOOR LOCKING SYSTEM

INSPECTION PROCEDURE C-1: Central Door Locking System does not Work.
| 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. ECU check on the SWS monitor Check that the power supply and earth lines to the ETACS-ECU and the SWS communication lines are normal. Ignition switch: OFF ECUS TO BE CHECKED ETACS ECU OK: "OK" is displayed on the "ETACS ECU" menu. Q: Is the check result normal? YES: Go to Step 2. NO: Refer to Inspection Procedure A-3 "Communication with the ETACS-ECU is not possible ."
| Step 2. Check the ETACS SW data by using the SWS monitor. Check the ETACS-ECU signal, which is related to the central door locking system. Driver's door: From unlocked to locked
Item No. | Item name | Normal conditions
--- | --- | ---
Item 21 | DR DOR LCK SW | from OFF to ON
Item 22 | DR DOR ULK SW | from ON to OFF
OK: Normal conditions are displayed for all the items. Q: Is the check result normal? YES: Go to Step 3. NO: Refer to inspection procedure P-14 "The driver's door lock actuator switch signal is not received ."
| Step 3. Connector check: E-25 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 connectors A-14, C-125 and junction block connector C-204, and repair if necessary. Check the power supply line for open or short 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.

[54C] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - CENTRAL DOOR LOCKING SYSTEM - INSPECTION PROCEDURE C-1: Central Door Locking System does not Work. | PRINT PAGE / INDEX / PRIOR / NEXT

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