Circuit/System Verification
- Ignition/Vehicle - Off
- Verify there are no leaks in the component/system: Brake System - Refer to: Brake Fluid Loss
- Ignition - On/Vehicle - In Service Mode
- Perform the scan tool control function: Brake Hydraulics Test
- If the procedure/test does not pass
Refer to: Hydraulic Brake System Bleeding (J55) , or Hydraulic Brake System Bleeding (JL9)
- Go to next step: If the procedure/test passes
- If the procedure/test does not pass
- Ignition/Vehicle - Off
- Ignition - On/Vehicle - In Service Mode
- Verify DTC C05B0 is not set.
- If DTC C05B0 is set
Replace the component: A104 Brake Master Cylinder
- Go to next step: If the DTC is not set
- If DTC C05B0 is set
- All OK.