Power Window Can Be Operated After Ignition Switch Is Turned Off Even If Operative Conditions Are Not Met

WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM (for Coupe): Power Window can be Operated After Ignition Switch is Turned OFF Even if Operative Conditions are not Met

Power Window can be Operated After Ignition Switch is Turned OFF Even if Operative Conditions are not Met

DESCRIPTION

The multiplex network body ECU keeps power supplied to the power window regulator master switch and the regulator switch for 43 seconds after the ignition switch is turned OFF. However, the body ECU will cut power to the master switch if: 1) either front door is opened within 43 seconds, 2) a signal from any door courtesy light switches is input to the ECU within 43 seconds, or 3) no power window activity occurs within 43 seconds.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF
(a) Check the power window operation function after the ignition switch is turned OFF.
Result:





B -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
A -- Continue to next step.
2. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY





(a) Measure the switch resistance of the switch.
Standard resistance:





NG -- REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY
OK -- Continue to next step.
3. CHECK WIRE HARNESS (COURTESY LIGHT SWITCH - MULTIPLEX NETWORK BODY ECU)





(a) Disconnect the D5 or D6 switch connector.
(b) Disconnect the B7 or B8 ECU connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE MULTIPLEX NETWORK BODY ECU