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Home >> GMC >> 2018 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 344 (Cruise Control System) >> Diagnostic Information and Procedures >> Cruise Control Malfunction >> 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. Ignition On/Vehicle In Service Mode
  2. Verify the component works as specified: Cruise Control Switch Assembly
  3. Refer to: Body Control Module - Scan Tool Parameters
    • If a condition exists 

      Refer to Circuit/System Testing.

    • If no condition exists 
  4. Verify the condition does not exist: Cruise Control System Status = Inhibit by ECM
    • Cruise Control System Status = Inhibit by ECM 

      If a condition exists, repair or replace as necessary

    • Cruise Control System Status Is not Equal to Inhibit by ECM 
  5. Verify that no DTC listed in the DTC Descriptor Category is set.
    • If a related DTC is set 

      Refer to Circuit/System Testing.

    • If a related DTC is not set 
  6. All OK.
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