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HOMESERVICE MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 118 (FIXED & MOVEABLE WINDOW SYSTEMS)DIAGNOSTIC INFORMATION & PROCEDURESPOWER WINDOWS MALFUNCTIONCOMPONENT TESTING
2009 Chevrolet Tahoe Base, 4.8 C

Component Testing

2009 Chevrolet Tahoe Base, 4.8 CSECTION Component Testing
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: When performing the following tests, make sure that the device is not already in the position step 1 is attempting to produce. If it is, start with step 2 then perform step 1.
  1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
  2. Install a 25-amp fused jumper wire between the control terminal A and 12 volts. Momentarily install a jumper wire between the control terminal B and ground. The window motor should perform the UP or DOWN function.
    • If the function does not perform as specified, replace the window motor.
  3. Reverse the jumper wires; the window motor should perform the DOWN or UP function.
    • If the function does not perform as specified, replace the window motor
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.