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.
- Ignition ON.
- Verify no additional DTCs are set in other control modules.
- If additional DTCs are set
- Go to next step: If no additional DTCs are set
- Verify the scan tool Park Brake Control Module Invalid Signal Identification parameters are all Valid.
- If any parameter is Invalid
Refer to the appropriate subsection in which the failure occurred. Refer to Symptoms - Vehicle
- Go to next step: If all parameters are Valid
- If any parameter is Invalid
- All OK.