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. Refer to HOW TO PROCEED WITH TROUBLESHOOTING
.
OK
LIN communication system DTCs are not output.
NG → See step 6
OK: Go to next step
- Check for LIN communication system DTCs related to the power window control system. Refer to HOW TO PROCEED WITH TROUBLESHOOTING
.
- CHECK POWER WINDOW OPERATION FUNCTION AFTER IGNITION SWITCH OFF
- Check the power window operation function after the ignition switch is turned off. Refer to OPERATION CHECK
.RESULT
Result Proceed to Front side door is opened within 43 sec. but power windows can still operate A 43 sec. pass and power windows can still operate B
B → See step 8
A: Go to next step
- Check the power window operation function after the ignition switch is turned off. Refer to OPERATION CHECK
.
- READ VALUE USING TECHSTREAM (FRONT DOOR COURTESY LIGHT SWITCH)
- Use the Data List to check if the main body ECU (multiplex network body ECU) is functioning properly. Refer to DATA LIST / ACTIVE TEST
.MAIN BODY
Tester Display Measurement Item/Range Normal Condition Diagnostic Note FL Door Courtesy SW Front door courtesy light switch LH signal / ON or OFF ON: Front door LH closed
OFF: Front door LH open- FR Door Courtesy SW Front door courtesy light switch RH signal / ON or OFF ON: Front door RH closed
OFF: Front door RH open- OK
On tester screen, each item changes between ON and OFF according to above chart.
NG → See step 4
OK → See step 8
- Use the Data List to check if the main body ECU (multiplex network body ECU) is functioning properly. Refer to DATA LIST / ACTIVE TEST
.
- CHECK FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY
- Open a front door and check that the map light illuminates. Refer to INSPECTION
.
OK
Map light illuminates.
NG → See step 7
OK: Go to next step
- Open a front door and check that the map light illuminates. Refer to INSPECTION
.
- CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY
- Temporarily replace the driver side junction block with a new or normally functioning one.
- Check that the key-off operation function operates normally.
NG → See step 8
OK → END (DRIVER SIDE JUNCTION BLOCK ASSEMBLY IS DEFECTIVE)
- GO TO LIN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING
- REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY. Refer to REMOVAL
- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to REMOVAL