Circuit/System Verification
- Ignition/Vehicle - Off
- Inspect for damage - Brake System Hydraulic Brake System Diagnosis
- Verify there are no leaks in the component/system: Brake System - Refer to Brake Fluid Loss
- A104 Brake Master Cylinder = Ambient Air Temperature.
- Ignition - On / Vehicle - In Service Mode
- Perform the scan tool control function: Brake Hydraulics Test
- Verify DTC is not set:
- If the DTC sets
Replace the component: A104 Brake Master Cylinder
- Go to next step: If the DTC is not set
- If the DTC sets
- All OK.