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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1304 (Fixed & MOVEABLE Window System) >> Diagnostic Information and Procedures >> DTC B3205 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
  2. Ignition ON, install a 25A 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 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 function.
    • If the function does not perform as specified, replace the window motor.
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