DTC P050F-01: Brake Assist Vacuum Too Low - General electrical failure: Action
NOTE:
Monitor description.
The engine control module checks there is brake vacuum greater than 60kPa gauge pressure after 45 seconds. After engine is running, the atmospheric pressure is greater than 75kPa, the coolant is greater than 20'C, and the brake pedal is released
- Check brake vacuum is available. Deplete vacuum with engine off until the brake pedal goes hard. With brake pedal still applied start engine, if the pedal drops then vacuum is available
- Refer to the appropriate system wiring diagrams and check brake vacuum sensor circuit for open circuit, high resistance
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- If the brake pedal does not drop check under bonnet for air leaks and brake vacuum pump operation
- Check and install new brake vacuum pump as required
- Clear the DTCs and retest