Auto Up / Down Function Does Not Operate

WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM (for Coupe): Auto Up / Down Function does not Operate

Auto Up / Down Function does not Operate

DESCRIPTION

If the AUTO UP/DOWN function does not operate, the cause may be one or more of the following:

- The recorded power window fully closed position, which is stored in the power window regulator master switch assembly, was erased as a result of: 1) the PWR fuse or the power window relay (PWR) being replaced: or 2) the battery cable and the master switch connector being disconnected.
- The master switch has a malfunction.
- The pulse sensors in the driver side power window regulator motor have a malfunction.
- The wiring between the master switch and the driver side power window regulator motor is open or short circuited.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK MANUAL UP/DOWN FUNCTION (DRIVER SIDE)
(a) Check if the manual UP/DOWN function operates normally.
OK:
Manual UP/DOWN function operates normally.
NG -- OTHER PROBLEM
OK -- Continue to next step.
2. CHECK LIGHT OF POWER WINDOW MASTER SWITCH (DRIVER SIDE SWITCH)





(a) Turn the ignition switch ON.
(b) Operate the master switch driver side switch.
(c) Check the blinking pattern of the AUTO light as shown in the illustration.





Result:





C -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
B -- CHECK WIRE HARNESS (MASTER SWITCH - WINDOW REGULATOR MOTOR LH)
A -- Continue to next step.
3. RESET POWER WINDOW REGULATOR MOTOR (DRIVER SIDE)
(a) Check if the power window operates normally after resetting.
OK:
Power window operates normally.
NG -- CHECK WIRE HARNESS (MASTER SWITCH - WINDOW REGULATOR MOTOR LH)
OK -- END
4. CHECK WIRE HARNESS (MASTER SWITCH - WINDOW REGULATOR MOTOR LH)





(a) Disconnect the D8 master switch connector.
(b) Disconnect the P7 motor connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:





NG -- REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR
OK -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (DRIVER SIDE)