Power Windows Malfunction (5 Door)
Power Windows Malfunction (5 Door)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.
Diagnostic Fault Information
Circuit/System Description
The each power window is controlled by their respective window switches front and the driver master control contains power window switches that controls all power window operations. When a power window switch is activated to a desired position, power window switch will send a signal to it's respective door window motor to move the window to the desired position. The window motors may also receive a signal from the rear fuse block to globally express down.
The rear window switches also receive voltage from the driver window switch lockout control which permit normal window operation from the rear window switches.
Reference Information
Schematic Reference
Moveable Window Schematics ([1][2]Electrical Diagrams)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
Power Windows Description and Operation (Power Windows Description and Operation)
Electrical Information Reference
* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
1. Ignition ON, command the each window UP and DOWN using the window switches on the driver master control and by using their respective door window switches. Each window should perform the UP and DOWN functions from each switch.
• If the driver door window is inoperative, refer to Driver Power Window Inoperative.
• If the front passenger door window is inoperative, refer to Passenger Power Window Inoperative.
• If the left rear or right rear door window is inoperative, refer to Rear Power Window Malfunction.
2. Disable the rear window switches by activating the window lockout switch on the driver master control. The rear window switches should be inoperative from the rear door window switches.
• If the rear window switches are still active, refer to Rear Power Window Lockout Malfunction.
3. Command each window to express down by pressing and holding the respective window switch until the window powers approximately one quarter of the way down and releasing the window switch. The window should roll completely down.
• If a window fails to perform the express down function, refer to Window Motor Programming - Express Function (Programming and Relearning) .
4. Globally command the windows UP and DOWN with a scan tool, all windows should globally express UP and express DOWN.
• If all windows fail to perform the global command, refer to Global Command Malfunction.
Circuit/System Testing
Driver Power Window Inoperative
1. Ignition OFF, disconnect the harness connector at the driver window switch.
2. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 26 and ground.
• If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
3. Connect the harness connector at the driver window switch. Disconnect the harness connector at the driver window motor.
4. Ignition OFF, test for less than 5 ohms between the ground circuit terminal 4 and ground.
• If greater than the specified range, test the ground circuit for an open/high resistance.
5. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.
• If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
6. Connect a test lamp between control circuit terminal 2 and control circuit terminal 3.
7. Command the driver window UP and DOWN by using the driver window switch. The test lamp should illuminate when commanding the UP and DOWN states.
• If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the driver window switch.
• If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the driver window switch.
8. If all circuits test normal, test or replace the driver window motor.
Passenger Power Window Inoperative
1. Ignition OFF, disconnect the harness connector at the passenger window switch.
2. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 1 and ground.
• If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
3. Connect a test lamp between control circuit terminal 3 and control circuit terminal 6.
4. Command the passenger window UP and DOWN by using the RF window switch on the driver master control. The test lamp should illuminate when commanding the UP and DOWN states.
• If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the driver window switch.
• If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the driver window switch.
5. Ignition OFF, connect the harness connector at the passenger window switch and disconnect the harness connector at the passenger window motor.
6. Connect a test lamp between control circuit terminal 2 and the control circuit terminal 3.
7. Ignition ON, command the passenger window UP and DOWN by using the passenger window switch. The test lamp should illuminate when commanding the UP and DOWN states.
• If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the passenger window switch.
• If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the passenger window switch.
8. If all circuits test normal, test or replace the passenger window motor.
Rear Power Window Malfunction
1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Ignition ON, with the lockout switch closed, verify that a test lamp illuminates between the control circuit terminal 1 and ground.
• If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the driver window switch.
3. Connect a test lamp between control circuit terminal 6 and control circuit terminal 3.
4. Ignition ON, command the rear passenger door window UP and DOWN using the window switch on the driver master control. The test lamp should illuminate when commanding the UP and DOWN states.
• If the test lamp does not illuminate during either of the commands, test both control circuits for a short to ground. If the circuits test normal, test or replace the driver window switch.
5. Ignition OFF, connect the harness connector at the rear window switch and disconnect the harness connector at the rear window motor.
6. Connect a test lamp between control circuit terminal 2 and the control circuit terminal 3.
7. Ignition ON, command the rear window UP and DOWN by using the rear window switch. The test lamp should illuminate when commanding the UP and DOWN states.
• If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the rear window switch.
• If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the rear window switch.
8. If all circuits test normal, test or replace the rear window motor.
Lockout Switch Malfunction
1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Connect a test lamp between the control circuit terminal 1 and ground.
3. Command the rear window lockout ON and OFF by using the lockout switch on the driver master control. The test lamp should turn ON and OFF when changing between the commanded states.
• If the test lamp is always ON, test the control circuit for a short to voltage.
• If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, test or replace the driver window switch.
Global Command Malfunction
1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
2. Ignition ON, test for greater than 10 volts between the signal circuit terminal 6 and ground.
• If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the rear fuse block.
3. Test for less than 1 volt between the signal circuit terminal 6 and ground while commanding the global down function with a scan tool.
• If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the rear fuse block.
4. If all circuits test normal, replace the window motor.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Front Side Door Window Switch Replacement (Front Side Door Window Switch Replacement)
* Front Side Door Window Regulator Motor Replacement (Service and Repair)
* Control Module References (Programming and Relearning) for rear fuse block replacement, setup, and programming