Key-off Operation Function Operates even if Operating Conditions are not Satisfied: Procedure
- CHECK LIN COMMUNICATION SYSTEM
- Check for LIN communication system DTCs related to the power window control system.RESULT:
Result Proceed to DTC is not output A DTC is output B
B → See step 5
A: Go to next step
- Check for LIN communication system DTCs related to the power window control system.
- CHECK POWER WINDOW OPERATION FUNCTION AFTER POWER SWITCH OFF
- Check the power window operation function after the power switch is turned OFF.RESULT:
Result Proceed to Driver side door or front passenger side door is opened within 45 seconds but power window can still operate A 45 seconds pass and the power windows can still operate B
B → REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)
A: Go to next step
- Check the power window operation function after the power switch is turned OFF.
- READ VALUE USING TECHSTREAM (DOOR COURTESY SWITCH)
- Use the Data List to check if the main body ECU is functioning properly.MAIN BODY:
Tester Display Measurement Item/Range Normal Condition Diagnostic Note D Door Courtesy SW Driver side door courtesy switch signal / ON or OFF ON: Driver door open
OFF: Driver door closed- P Door Courtesy SW Front passenger side door courtesy switch signal / ON or OFF ON: Front passenger door open
OFF: Front passenger door closed- OK
Tester display changes normally when door courtesy switch is operated.
NG → See step 4
OK → REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)
- Use the Data List to check if the main body ECU is functioning properly.
- CHECK FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY
- Open the driver side door and check that the map light illuminates.
OK
Map light illuminates.
- Open the front passenger side door and check that the map light illuminates.
OK
Map light illuminates.
NG → See step 6
OK → REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)
- Open the driver side door and check that the map light illuminates.
- GO TO LIN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING
- REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY. Refer to REMOVAL