Circuit/System Verification

Ignition - On/Vehicle - In Service Mode
Verify DTC C0186, C0187, C0196, C0287, C0710 is not set.
- If any of the DTCs are set
  Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If none of the DTCs are set
Ignition/Vehicle - Off - Q5 Brake Pressure Modulator = Ambient Air Temperature
Ignition - On/Vehicle - In Service Mode
Under normal operating conditions: Verify DTC C0280 is not set.
- If the DTC sets
1. Replace the component: Q5 Brake Pressure Modulator
2. Under normal operating conditions: Verify DTC C0280 is not set.
  - If the DTC sets - Replace the component: K17 Electronic Brake Control Module
  - Go to next step: If no DTC is set
3. All OK.
- Go to next step: If the DTC is not set
All OK.