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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC B3623, B3794, P0564, P0565, P0567, P0568, P056C, P0580, P0581, P0589, P0592, P0593, P155A-P155C, or P162C >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On / Vehicle - In Service Mode
  2. { If equipped }Verify the component/system operates correctly: Active Safety Control Module
    • If a condition exists 

      Refer to: Symptom List - Vehicle

    • Go to next step: If no condition exists 
  3. 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

    • Go to next step: Cruise Control System Status Inhibit by ECM 
  4. Verify the component works as specified: Cruise Control Switch Assembly
  5. Refer to: Body Control Module-Scan Tool Parameters
    • If a condition exists 

      Refer to Circuit/System Testing.

    • Go to next step: If no condition exists 
  6. Verify that no DTC listed in the DTC Descriptor Category is set.
    • If a related DTC is set 

      Refer to Circuit/System Testing.

    • Go to next step: If a related DTC is not set 
  7. All OK.
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