Circuit/System Verification

WARNING: This page is about a different car, the 2018 Chevrolet Trax and 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.

Verify that no other DTCs are set except for DTC P1B12 is set.
- If any other DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If no other DTCs are set
Replace the K17 Electronic Brake Control Module.
Verify the DTC P1B12 does not set while operating the vehicle within the Conditions for Running the DTC.
- If only DTC P1B12 is set
  Replace the K20 Engine Control Module.
- Go to next step: If the DTC does not set
All OK.