[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - ROOM LAMP - INSPECTION PROCEDURE N-3: The door-ajar warning lamp does not illuminate/extinguish normally.PRINT PAGE / INDEX / PRIOR / NEXT
INSPECTION PROCEDURE N-3: The door-ajar warning lamp does not illuminate/extinguish normally.
 CAUTION
 Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
OPERATION
The ETACS-ECU operates this function in accordance with all the door switch signals. If the door-ajar warning lamp does not work normally, the input signal circuits from all the door switches or the ETACS-ECU may be defective.
POSSIBLE CAUSES
  • All the door switches are defective.
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Check the operation of the room lamp.
Check that the dome lamps illuminate and extinguish normally.
Q: Is the check result normal?
YES:  Go to Step 2.
NO:  Refer to inspection procedure N-1 "The front and rear room lamp does not illuminate/extinguish ."
Step 2. Pulse check
Check the input signals below, which are related to the door-ajar warning lamp.
System switch
 Check conditions
Driver's door switch
 Driver's door is opened while all the other doors are closed.
All of the door switches
 A door is opened when all the doors are closed

OK: The MUT-II/III sounds or the voltmeter needle fluctuates.
Q: Are the check result normal?
All the signals are received normally.:  Go to Step 3.
The driver's door switch signal is not received.:  Refer to inspection procedure P-4 "The driver's door switch signal is not received" .
All the door switch signals are not received.:  Refer to inspection procedure P-13 "All the door switch signals are not received" .
Step 3. Connector check: C-05 combination meter connector
Q: Is the check result normal?
YES:  Go to Step 4.
NO:  Repair the connector.
Step 4. Check the door-ajar warning lamp bulb.
Check the door-ajar warning lamp bulb.
Q: Is the check result normal?
YES:  Go to Step 5.
NO:  Replace the door-ajar warning lamp bulb.
Step 5. Connector check: C-219 ETACS-ECU connector
Q: Is the check result normal?
YES:  Go to Step 6.
NO:  Repair the connector.
Step 6. Check the wiring harness from C-219 ETACS-ECU connector (terminal Nos. 53 and 71) to C-05 combination meter connector (terminal Nos. 20 and 21).
Q: Is the check result normal?
YES:  Go to Step 7.
NO:  Repair the wiring harness.
Step 7. Retest the system.
Replace the ETACS-ECU, and then check that the door-ajar warning lamp illuminates/extinguishes normally.
  1. Replace the ETACS-ECU.
  1. Check that the door-ajar warning lamp illuminates/extinguishes 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 combination meter.
[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - ROOM LAMP - INSPECTION PROCEDURE N-3: The door-ajar warning lamp does not illuminate/extinguish normally.PRINT PAGE / INDEX / PRIOR / NEXT
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