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Circuit/System Verification

WARNING: This page is about a different car, the 2013 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify that no DTCs are set, except DTC P1553.
    • If only DTC P1553 is set 
  3. Replace the B129 Cruise Control Vehicle Distance Sensor Module.
  4. Verify DTC P1553 does not set when operating the vehicle within the conditions for running the DTC.
    • If the DTC sets 

      Replace the K20 Engine Control Module.

    • If the DTC does not set 
  5. All OK.
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