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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1024 (Power Seat System) >> Diagnostic Information and Procedures >> Power Seat Inoperative (w/Memory) >> Circuit/System Verification

Circuit/System Verification

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. Install a scan tool and display the MSM switch inputs.
  2. Verify that none of the power seat switch parameters are Active while in an inactive state.
    • If not the specified value, refer to the Power Seat Switch Circuit Test below.
  3. Verify that the power seat switch parameters are Active while the switch is pressed.
    • If not the specified value, refer to the Power Seat Switch Circuit Test below.
  4. Verify that none of the lumbar switch parameters are Active while in an inactive state.
    • If not the specified value, refer to the Lumbar Switch Circuit Test below.
  5. Verify that the lumbar switch parameters are Active while the switch is pressed.
    • If not the specified value, refer to the Lumbar Switch Circuit Test below.
  6. If the switch inputs to the MSM function normal, refer to the affected Motor Control Circuit Test below.
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