Circuit/System Testing
- Ignition ON.
- Verify that DTC C0186, C018B, C0196, C019B, C0287, or C0710 is not set.
- If any of the DTCs are set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If none of the DTCs are set
- If any of the DTCs are set
- Ignition OFF, allow the Q5 Brake Pressure Modulator to cool down to ambient temperature, ignition ON.
- Verify that DTC C0280 54 does not set while driving the vehicle under normal braking conditions.
- If the DTC sets
- Replace the K17 Electronic Brake Control Module.
- Verify the DTC does not set while driving the vehicle under normal braking conditions.
- If the DTC sets, replace the Q5 Brake Pressure Modulator.
- If the DTC does not set
- All OK.
- If the DTC does not set
- All OK.