Power Windows Chrysler PT Cruiser I

DESCRIPTION

The power window system allows each of the door windows to be raised and lowered electrically by actuating a switch on the instrument panel or center console (sedan only). The front window switch allows the front occupants to lock out the individual rear switches from operation. The power window system receives battery feed through a circuit breaker in the fuse block, only when the ignition switch is in the ON position.

In each door of the convertible there is a window regulator module directly connected to each of the front door window regulator motors. The modules control window motor operation and smart glass functions. The driver window module controls the convertible top operations.

The power window system includes the power window switches on the instrument panel and center console (sedan only), the circuit breaker in the fuse block, and the power window motors.

OPERATION

The front and rear window lift motors are of the permanent magnet type. A battery positive and negative connection to either of the two motor terminals will cause the motor to rotate in one direction. Reversing current through these same two connections will cause the motor to rotate in the opposite direction.

On convertible vehicles, the convertible top switch is hard wired to both window regulator modules by the Power Top Switch Mux circuit. When a top operation input is received by the driver window module, it will ground the respective relay control circuit which in turn will operate the motor. If the convertible top switch is pressed and held to the down position second detent, it will command both modules to drop all windows to the fully down position. The windows cannot be raised when the convertible top switch is in the top down position. When the switch is held in the top up position and all four windows are fully up, the modules will lower the respective front window 40 mm, lower the respective rear window approximately 55 mm and the driver window module will ground the top up relay control circuit. Once the top is back up the windows will not raise automatically.

Each individual motor is grounded through their respective switch.

WIRING VOLTAGE TEST

The following wiring test determines whether or not voltage is continuous through the body harness to the front switch.

1. Remove the power window switch and bezel.
2. Disconnect wire connector from back of power window switch.
3. Switch ignition to the ON position.
4. Connect the clip end of a 12 volt test light to Pin 4 of the window switch harness connector. Touch the test light probe to Pin 3.

1. If the test light illuminates, the wiring circuit between the battery and switch is OK.
2. If the lamp does not illuminate, first check 30 amp circuit breaker in the fuse block. If circuit breaker is OK, then check for a broken wire.

For complete circuit diagrams, refer to SYSTEM WIRING DIAGRAMS .

POWER WINDOW MOTOR TEST

If the power window motor is receiving proper current and ground and does not operate, proceed with motor test.

For complete circuit diagrams, refer to SYSTEM WIRING DIAGRAMS .

1. Remove front door trim panel as necessary to gain access to power window motor wire connector.
2. Disconnect power window motor wire connector from door harness.
3. Using two jumper wires, connect one to a battery (+) source and the other to a good ground (-).
4. Connect the Negative (-) jumper probe to one of the motor connector terminals.
5. Momentarily touch the Positive (+) jumper probe to the other motor connector terminal. When positive probe is connected the motor should rotate in one direction to either move window up or down. If window is all the way up or down the motor will grunt and the inner door panel will flex when actuated in that one direction.
6. Reverse jumper probes at the motor connector terminals and window should now move in opposite direction. If window does not move or grunt, replace the motor.

If window moved completely up or down, reverse the jumper probes and cycle window to the opposite position to verify full operation.

If motor grunts and does not move, verify that regulator is not binding.

DIAGNOSIS AND TESTING - POWER WINDOW SWITCH

Remove the switch. Using an ohmmeter, test the window switch for continuity in all positions listed in the Continuity Tables. Refer to POWER WINDOW SWITCH CONTINUITY - SEDAN or POWER WINDOW SWITCH CONTINUITY - CONVERTIBLE to determine if continuity is correct. (Scheme 1)and (Scheme 2).

Scheme 1

Scheme 2

To test the left front down and express down switch position, connect pin 4 to ground and pin 12 to a 12 volt source. Using a voltmeter, measure for voltage from pin 13 to ground.

To test the right front down and express down switch position, connect pin 4 to ground and pin 12 to a 12 volt source. Using a voltmeter, measure for voltage from pin 3 to ground. If the correct results are not obtained, replace the switch.

POWER WINDOW SWITCH CONTINUITY - SEDAN

POWER WINDOW SWITCH CONTINUITY - CONVERTIBLE

Scheme 3

1. Disconnect and isolate the battery negative cable.
2. Using a trim stick (special tool #C-4755) or equivalent, gently pry at the top of the switch. (Scheme 3) 1 - TRIM STICK 2 - RETAINING CLIP LOCATION
3. Remove switch and disconnect electrical harness connector. (Scheme 4)

Scheme 4

REAR - SEDAN ONLY

1. Disconnect and isolate the battery negative cable.
2. Using a trim stick (special tool #C-4755) or equivalent, gently pry at the top of the switch. (Scheme 3)
3. Remove switch and disconnect electrical harness connectors. (Scheme 5)

Scheme 5

FRONT

1. Connect electrical harness connector to switch.
2. Align switch and press into position.
3. Connect battery negative cable.

1. Connect electrical harness connector to switch.
2. Align switch and press into position.
3. Connect battery negative cable.

REMOVAL

1. Move the window to the full UP position position, if possible.
2. Disconnect and isolate the battery negative cable.
3. Remove door trim panel «(Refer to BODY/DOOR - FRONT/TRIM PANEL - REMOVAL)»(/chrysler/pt-cruiser/i-2000-2010/remont/gauges-instrument-panels/#interior-exterior) .
4. Disconnect electrical harness connector from motor.
5. Remove window regulator.
6. With regulator on bench, remove three screws retaining the motor to the regulator and remove motor.

INSTALLATION

1. With regulator on bench, install three screws retaining the motor to the regulator.
2. Install the window regulator.
3. Connect the electrical harness connector to window motor.
4. Install door trim panel «(Refer to BODY/DOOR - FRONT/TRIM PANEL - INSTALLATION)»(/chrysler/pt-cruiser/i-2000-2010/remont/gauges-instrument-panels/#interior-exterior) .
5. Connect battery negative cable.

The window regulator modules are directly connected to each of the front door window regulator motors. (Scheme 6) The window switches are hard wired by a mux circuit to the respective window regulator module. The respective rear window motor is hard wired to the module. The front window motor is directly attached to the module. Both front door window switches have the express down feature. The module will cease lowering the front glass when a fully down position is sensed through the hall effect sensor.

When a module must be replaced, it is necessary to replace the entire regulator assembly.

Scheme 6

When a door is opened, the respective module will receive a signal from the door ajar switch or the window drop switch. The window drop switch is directly controlled by both the interior and the exterior door handle switches. The drop switch is part of the door latch. This switch is faster than the door ajar switch to signal an open door operation. At that point the module will drop the front door glass 10 mm. However, if the window drop switch should fail, the door ajar sense would also drop the window 10 mm and the module would set a trouble code. When the module then receives a door ajar switch open (door closed) it would raise the window 10 mm. The module knows the position of the window by counting the motor rotation through the hall effect sensor in the module. If a door window is raised while that door is open, the module will raise the glass up, but when the door is closed it will raise the glass an additional 10 mm. When the convertible top down switch is pressed to the first detent, input is received by the driver window regulator module and passenger window regulator module, which will lower the front windows approximately 40 mm, and lower the rear windows approximately 55 mm. After a 200 ms delay, it energizes the power top down relay to lower the convertible top.

DIAGNOSIS AND TESTING - WINDOW REGULATOR MODULE

Any diagnosis of the Window Regulator Modules should begin with the use of the DRB III(R) diagnostic tool. For information on the use of the DRB III(R), refer to BODY DIAGNOSTIC PROCEDURES .

For complete circuit diagrams, refer to SYSTEM WIRING DIAGRAMS .

See also:
• (Refer to BODY/DOOR - FRONT/TRIM PANEL - REMOVAL)
• BODY DIAGNOSTIC PROCEDURES
• POWER WINDOW SWITCH CONTINUITY - SEDAN