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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 >> Power Seat Malfunction (Driver Seat Sedan or Coupe with Memory A45) >> Circuit/System Verification

Circuit/System Verification

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.
  1. Ignition ON.
  2. Verify the scan tool seat switch parameters listed below change between Inactive and Forward/Rearward or Up/Down when pressing the appropriate switch.
    • Driver Seat Horizontal Switch
    • Driver Seat Cushion Front Vertical Switch
    • Driver Seat Cushion Rear Vertical Switch
    • Driver Seat Back Switch
    • If any parameter does not change 

      Refer to Circuit/System Testing - Seat Adjuster Switch Circuit Test

    • If all parameters change 
  3. Verify the seat directional motors listed below operate when pressing the appropriate seat switches in both directions.
    • M50D Seat Front Vertical Motor - Driver
    • M55D Seat Rear Vertical Motor - Driver
    • M51D Seat Horizontal Motor - Driver
    • M56D Seat Recline Motor - Driver
    • If any seat motor does not operate 

      Refer to Circuit/System Testing - Seat Motor Control Circuit Test.

    • If all seat motors operate 
  4. All OK.
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