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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1001 (Adjustable Pedal System) >> Diagnostic Information and Procedures >> DTC B3604 or B3605 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the adjustable pedal switch connector.
  2. Ignition ON, verify that both adjustable pedal switch parameters to the memory seat module are Inactive.
    • If one of the switch parameters is always Active test the affected switch signal circuit for a short to voltage. If the signal circuit tests normal replace the memory seat module.
  3. If the circuit tests normal replace the adjustable pedal switch.
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