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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/o 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. Operate the horizontal, front vertical, and rear vertical switches in both directions.
    • If the power seat is inoperative in all directions, refer to Power Seat Switch Circuit Test below.
    • If 1 or 2 of the seat adjuster motors operate, refer to Seat Adjuster Circuit Test below.
  2. Operate the recline in both directions.
    • If the recline function is inoperative, refer to Recliner Actuator Circuit Test below.
  3. Operate the horizontal and vertical lumbar switches in both directions.
    • If both lumbar functions are inoperative, refer to Lumbar Switch Circuit Test below.
    • If 1 lumbar function is inoperative, refer to Lumbar Support Circuit Test below.
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