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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1323 (Seat Heating System & Seat Cooling System) >> Diagnostic Information and Procedures >> Heated Seat Inoperative (Factory Installed) >> Component Testing >> Heated Seat Switch Indicators

Heated Seat Switch Indicators

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 X4 harness connector at the appropriate door lock/window switch.
  2. Connect a 3 A fused jumper wire between the low reference circuit terminal 4 and ground.
  3. Connect a test lamp between B+ and each control circuit listed below. The appropriate indicator should illuminate.
    • Seat back and cushion mode indicator terminal 10
    • Seat back only mode indicator terminal 11
    • Low heat indicator terminal 9
    • Medium heat indicator terminal 1
    • High heat indicator terminal 2
    • If any indicator does not illuminate, replace the heated seat switch.
  4. If all indicators illuminate, replace the door lock/window switch.
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