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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 272 (Power Seat System) >> Diagnostic Information and Procedures >> Lumbar Support Malfunction (Driver Seat Coupe with AQ9 without A45) >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2017 Cadillac ATS. 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
Driver Seat Lumbar Forward Switch Signal B1735 59, B1740 58, B1745 59, B1750 59, B1755 59, B1760 59, B1815 59, B1820 59, B1830 59, B1835 59 1 - -
Driver Seat Lumbar Rearward Switch Signal B1735 59, B1740 58, B1745 59, B1750 59, B1755 59, B1760 59, B1815 59, B1820 59, B1830 59, B1835 59 1 - -
Driver Power Seat Lumbar Motor Forward Control B3920 02 1 B3920 01 -
Driver Power Seat Lumbar Motor Rearward Control B3920 02 1 B3920 01 -
1. The driver seat lumbar support is inoperative