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

WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM (w/ Jam Protection Function): 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 controls power supplied to the power window master switch and each regulator switch continuously for 45 seconds after the ignition switch is turned OFF unless the front doors have been opened, so that the power window can be operated during this period Power Window Control System (W/ Jam Protection Function). However, if either front door is opened or if a signal from any of the front door courtesy lamp switches is input to the ECU during 45 seconds, or if 45 seconds pass with nothing being done, the multiplex network body ECU will stop supplying power, thus disabling power window operation disabled.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF
(a) If the power window operates even after either front door is opened within 45 seconds after the ignition switch is turned OFF, proceed to A.
(b) If the power window operates even after 45 seconds have passed after the ignition switch is turned OFF, proceed to B.
B -- REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
A -- Continue to next step.
2. READ VALUE USING TECHSTREAM
(a) Using Techstream, check that the data list for proper functioning of the front door courtesy switches.

Standard (Multiplex network body ECU)





OK -- REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
NG -- Continue to next step.
3. INSPECT DOOR COURTESY SWITCH ASSEMBLY





(a) Remove the courtesy lamp switch.
(b) Check the switch resistance.
Standard resistance:






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





(a) Disconnect the D7 or D8 lamp switch connector.
(b) Disconnect the B7 or B9 ECU connector.
(c) Check the resistance between the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)