Circuit/System Verification
WARNING: This page is about a different car, the 2020 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
- Vehicle in Service Mode.
- Verify that no other DTCs are set except for C1594.
- If any other DTCs are set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If no other DTCs are set
- If any other DTCs are set
- Replace the K160 Brake System Control Module.