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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 301 (Power Seat System) >> Diagnostic Information and Procedures >> Lumbar Support Malfunction >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2017 GMC Acadia. 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+ 1 2 - -
Power Seat Lumbar Motor Rearward Control 1 2 - -
Power Seat Lumbar Motor Forward Control 1 2 - -
Ground - 2 - -
  1. The power seat and lumbar support are inoperative
  2. The lumbar support is inoperative