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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/Bolster Malfunction (Driver or Passenger Seat with W2E) >> 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
B+ U0208.00 U1520 00 - -
Linear Interconnect Network Bus 13 U0208.00, U1502 00 U1520 00 U1502 00, U1520 00, U1528 00 -
Seat Bolster Memory Control Module Ground - U1520 00 - -
Seat Lumbar/Bolster Pump Control B392B 00 1 2 -
Seat Lumbar/Bolster Pump Ground - 1 - -
1. The lumbar/bolster functions are inoperative
2. The lumbar/bolster pump is always ON