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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1343 (Power Seat System) >> Diagnostic Information and Procedures >> Lumbar Support Inoperative (Without Memory A45) >> Diagnostic Fault Information

Diagnostic Fault Information

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.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ Lumbar Switch 1, 2 2 - -
Lumbar Motor Up Control 2 2 - -
Lumbar Motor Down Control 2 2 - -
Lumbar Motor Rearward Control 2 2 - -
Lumbar Motor Forward Control 2 2 - -
Ground - Lumbar Switch - 2 - -
  1. Power Seats Inoperative
  2. Lumbar Support Inoperative