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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

Heated Seat Switch

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. Test for infinite resistance between the signal circuits listed below and the low reference circuit terminal 4 with the switch in the open position.
    • Seat back and cushion heat mode terminal 6
    • Seat back only mode terminal 7
    • If not the specified value, replace the heated seat switch.
  3. Test for less than 2 Ω between the signal circuits listed below and the low reference circuit terminal 4 with the switch in the closed position.
    • Seat back and cushion heat mode terminal 6
    • Seat back only mode terminal 7
    • If greater than the specified range for any of the tests, replace the heated seat switch.
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