POWER WINDOW SWITCH
The power windows are controlled by a window/lock switch on the trim panel of each front door. Switches in the driver door window/lock switch allows the driver to control the passenger windows.
The power window switch for the driver side front door window has a second detent position beyond the normal Down position that provides an automatic one-touch window down feature. This feature is controlled by the window/lock switch.
The power window switches control the battery and ground feeds to the power window motors. All of the passenger door power window switches receive their battery and ground feeds through the circuitry of the window/lock switch. When the power window lockout switch is in the Lock position, the battery feed for the individual passenger door power window switches is interrupted.
POWER WINDOW MOTOR
A permanent magnet reversible motor moves the window regulator through an integral gearbox mechanism. A positive and negative battery connection to the two motor terminals will cause the motor to rotate in one direction. Reversing the current through these same two connections will cause the motor to rotate in the opposite direction.
In addition, each power window motor is equipped with an integral self-resetting circuit breaker to protect the motor from overloads. The power window motor and gearbox assembly cannot be adjusted or repaired. If damaged or ineffective, the entire unit must be replaced.
EXPRESS DOWN WINDOW FEATURE
This feature allows you to remotely lower both front door windows at the same time. To use this feature, press and release the UNLOCK button on the RKE transmitter and then immediately press and hold the UNLOCK button until the windows lower to the desired level or until they lower completely.
ALL WINDOWS INOPERATIVE
- Check the circuit breaker. If OK, go to 2 . If not OK, replace the inoperative circuit breaker.
- Disconnect and isolate the battery negative cable. Remove the window/lock switch from the driver side front door trim panel. Unplug the wire harness connector.
- Check for continuity between the ground circuit cavity of the door module wire harness connector and a good ground. If OK, go to 4 . If not OK, repair the circuit to ground as required.
- Connect the battery negative cable. Turn the ignition switch to the On position. Check for battery voltage at the fused ignition switch output (run) circuit cavity of the window/lock switch wire harness connector. If OK «SWITCH, LOCK, DIAGNOSIS AND TESTING»(ref-465957-S25827211202012042300000) . If not OK, repair the circuit as required.
ONE WINDOW INOPERATIVE
The window glass must be free to slide up and down for the power window motor to function properly. If the glass is not free to move up and down, the motor will overload and trip the integral circuit breaker. To determine if the glass is free, disconnect the regulator from the glass. Then slide the window up and down by hand.
There is an alternate method to check if the glass is free. Position the glass between the up and down stops. Then, shake the glass in the door. Check that the glass can be moved slightly from side to side, front to rear, and up and down. Then check that the glass is not bound tight in the tracks. If the glass is free, proceed with the diagnosis that follows. If the glass is not free, determine the cause of the condition.
If the only inoperative window is in the driver or passenger side front door and the preceding checks have not identified a problem. Refer to MOTOR, WINDOW REGULATOR, DIAGNOSIS AND TESTING . If the problem being diagnosed involves only the Auto-down feature for the driver side front door window, but all of the power windows are operational, replace the driver's side window/lock switch. For diagnosis of the window/lock switch. Refer to SWITCH, LOCK, DIAGNOSIS AND TESTING . For a rear power window problem proceed with the following
- Disconnect and isolate the battery negative cable. Unplug the wire harness connector from the power window switch unit on the door with the inoperative power window. Check for continuity between the ground circuit cavity of the power window switch wire harness connector and a good ground. There should be continuity. If OK, go to 2 . If not OK, repair the open circuit to the power window and door lock master switch as required.
- Connect the battery negative cable. Turn the ignition switch to the On position. Check for battery voltage at the fused ignition switch output (run) circuit cavity in the body half of the power window switch unit wire harness connector. If OK, go to 3 . If not OK, repair the open circuit to the power window and door lock master switch as required.
- Test the power window switch continuity. Refer to «SWITCH, POWER WINDOW, DIAGNOSIS AND TESTING»(ref-465953-S15666237442012042300000) . If OK, go to 4 . If not OK, replace the power window switch.
- Check the continuity in each circuit between the inoperative power window switch wire harness connector cavities and the corresponding power window motor wire harness connector cavities. If OK, go to «MOTOR, WINDOW REGULATOR, DIAGNOSIS AND TESTING»(ref-465953-S35498392942012042300000) . If not OK, repair the open circuit(s) as required.
Note. All passenger door power window switches receive their battery and ground feed for operating the passenger door power window motors through the driver side power window and lock master switch and wire harness connector.
PROCEDURE
Note. The battery must be fully charged or the vehicle running for proper calibration of the front door module.
Note. The following procedure must be performed anytime the power window system has been serviced in either front door or, there is a possible concern with a door module calibration.
Express-up / Express-down possible concerns.
- Glass will not lower all the way down flush to the belt-line.
- Glass will not raise fully; wind noise / water leak.
- Glass will not raise automatically (Expess-up) after lifting the switch to the second detent and releasing.
To clear/denormalize the door module memory, perform the following procedure
CLEAR/DENORMALIZE
- Check and repair any door module Diagnostic Trouble Code (DTC) (s) before proceeding.
- Using a scan tool, under the miscellaneous functions menu select (Denormalize Window/Reset ECU), and follow the directions to clear/denormalize the door module memory.
To relearn/normalize the door module memory, perform the following procedure
RELEARN/NORMALIZE
Note. The battery must be fully charged or the vehicle running before proceeding.
- If needed, place the vehicle battery on charge or have the engine running.
- To relearn/normalize the door module, start by raising the door glass to the full-up position by pulling up on the window switch to its second detent and hold the switch until the door glass is fully closed. Continue to hold the window switch up for two seconds after the door glass is full closed.
- Lower the door glass to the full-down position by pushing down (depress) the window switch to its second detent and hold the switch until the door glass is fully open. Continue to hold the window switch down for two seconds after the door glass is fully open.
- Check the operation of the express-up and express-down features.
- If the express up does not work, repeat the procedure starting at step #2, waiting for three seconds after the window stops.
- Check that the door glass reverses when in the express-up mode by holding a pen in the path of the glass.
- Recheck and repair any door module DTC's as needed
FRONT SWITCH MODULE
- Position the front door switch module (1) close enough to the mounting hole in the arm rest (2) of the front door trim panel to access and reconnect the front door wire harness connector (3) to the switch connector receptacle.
- Align the switch module to the arm rest mounting hole.
- Using hand pressure, press the switch module firmly and evenly into the mounting hole until the four spring steel retainers of the switch are fully engaged and the switch bezel is fully seated against the arm rest.
- Connect the battery negative cable.