Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON/Vehicle in Service Mode.
Verify no other DTCs are set, except for DTC C15A3.
- If any other DTCs are set
  Diagnose any other DTCs first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If no other DTCs are set
Replace the K182 Parking Assist Control Module.
Clear DTCs.
Operate the vehicle within the Conditions for Running the DTC.
Verify DTC C15A3 does not set.
- If DTC C15A3 sets
  Replace the K160 Brake System Control Module.
- Go to next step: If DTC C15A3 does not set
All OK.