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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1132 (Power Seat System) >> Diagnostic Information and Procedures >> Power Seat Inoperative (with Memory A45) >> Circuit/System Testing >> Seat Adjuster Switch Test

Seat Adjuster Switch Test

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the seat adjuster switch.
  2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal E and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the memory seat module.
  3. Install a 3A fused jumper wire between the inoperative switch signal circuit terminal and the B+ circuit terminal E. Verify the related scan tool seat switch parameter is Active.
    • If not Active, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the MSM.
  4. If all circuits test normal, test or replace the seat adjuster switch.
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