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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 349 (Parking Brake System) >> Diagnostic Information and Procedures >> DTC C1586: Right Park Brake Actuator Circuit >> Circuit/System Verification

Circuit/System Verification

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.
  1. Verify the M104R Park Brake Actuator - Right apply when pulling the S91 Park Brake Switch.
    • If the M104R Park Brake Actuator - Right does not apply 

      Refer to the Circuit/System Testing.

    • If the M104R Park Brake Actuator - Right does apply 
  2. Verify the M104R Park Brake Actuator - Right release when pressing the S91 Park Brake Switch.
    • If the M104R Park Brake Actuator - Right does not release 

      Refer to the Circuit/System Testing.

    • If the M104R Park Brake Actuator - Right does release 
  3. All OK.
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