[54C] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Hong Kong spec.> - - INPUT SIGNAL PROCEDURES - INSPECTION PROCEDURE P-8: When the power window main switch is operated, the switch signals are not received.PRINT PAGE / INDEX / PRIOR / NEXT
INSPECTION PROCEDURE P-8: When the power window main switch is operated, the switch signals are not received.
 CAUTION
 Whenever the ECU is replaced, ensure that the input signal circuit is normal.
COMMENTS ON TROUBLE SYMPTOM
Input signal from the power window main switch is used in order to check the power window main switch and confirm how the system is communicating with the ETACS-ECU. If the communication line is defective, the functions below will not work normally.
  • Power windows
  • Multimode keyless entry function
POSSIBLE CAUSES
  • Malfunction of the power window main switch
  • 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 power window main switch (power window module) and the SWS communication lines are normal.
  • Ignition switch: ON
ECUS TO BE CHECKED
  • P/W MODULE
OK: "OK" is displayed on the "P/W MODULE" menu.
Q: Is the check result normal?
YES:  Go to Step 2.
NO:  Refer to Inspection Procedure A-4 "Communication with the power window main switch (power window module) is not possible" .
Step 2. Confirm communication data by using the SWS monitor.
<Selected item> Fr-ECU, P/W, S/R
  • Ignition switch: ON
  • Power window main switch: Operate any function of the switch.
Item No.
 Item name
 Normal conditions
Item 71
 P/W ECU ACK
 INPUT CHECK

OK: Normal condition is displayed.
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 power window main switch.
[54C] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Hong Kong spec.> - - INPUT SIGNAL PROCEDURES - INSPECTION PROCEDURE P-8: When the power window main switch is operated, the switch signals are not received.PRINT PAGE / INDEX / PRIOR / NEXT
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