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Rear Side Door Window Regulator Motor Replacement (Extended Cab) or Rear Front Side Door Window Regulator Motor Replacement Rear Side Door Window Switch Replacement (Crew Cab) or Rear Side Door Control Module References for DDS, PDS and BCM replacement, setup and POWER WINDOWS MALFUNCTION (A31 W/O AN3, DL3) Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. Diagnostic Fault Information Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance Driver Window Switch B+ 1 1 - - Passenger Window Switch B+ 2 2 - - Left Rear Window Switch B+ 3 3 - - Right Rear Window Switch 4 4 - - Left Rear Window Down 3 3 3 - Left Rear Window Up Signal 3 3 3 - Passenger Window Down 2 2 2 - Passenger Window Up Signal 2 2 2 - Right Rear Window Down 4 4 4 - Right Rear Window Up Signal 4 4 4 - Window Master Switch 3, 4 3, 4 3, 4 - Driver Window Motor 1 1 1 -
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Circuit/System Description The power window system will operate any time the ignition is in the ACC or RUN position. The Each power window contains a reversible power window motor. The direction the window Battery voltage is supplied to each power window switch through the accessory voltage supply Passenger Window Motor 2 2 2 - Left Rear Window Motor 3 3 3 - Right Rear Window Motor 4 4 4 - Driver Window Switch - 1 1 - Passenger Window Switch - 2 2 - Left Rear Window Switch - 3 3 - Right Rear Window Switch - 4 4 - 1. Driver Power Window Malfunction
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
the normally closed contacts of the up switch, the window travels down. By placing the power Reference Information Schematic Reference Moveable Window Schematics Connector End View Reference Component Connector End Views Description and Operation Power Windows Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Circuit/System Verification 1. Ignition ON, command the each window UP and DOWN using the appropriate window switch on the driver master control and the appropriate passenger door window switch. If the front driver door window is inoperative, refer to Driver Power Window If the front passenger door window is inoperative, refer to Passenger Power Window If the left rear or right rear door window is inoperative, refer to Rear Power Window 2. Disable the rear door window switches by activating the window lockout switch on the driver master control. The rear door window switches should be inoperative. If the rear door window switches are still active, refer to Window Lockout Switch
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
3. Command the express down function of the driver door window by pressing down on the driver's window switch past the first detent and releasing. The driver's window should roll If the function does not perform as specified, replace the driver window switch. Circuit/System Testing Driver Power Window Inoperative 1. Ignition OFF, disconnect the X2 harness connector at the driver window switch. 2. Test for less than 1 ohm between the ground circuit terminal A and ground. If greater than the specified range, test the ground circuit for an open/high resistance. 3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal H and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an 4. Connect the X2 harness connector at the driver window switch, disconnect the harness connector at the driver window motor. 5. Connect a test lamp between control circuit terminal A and control circuit terminal B. 6. 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 is always OFF during either of the commands, test either control circuit If the test lamp is always ON, test either control circuit for a short to voltage. If the 7. 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. Test for less than 1 ohm between the ground circuit terminal F and ground. If greater than the specified range, test the ground circuit for an open/high resistance. 3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal G and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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