Component Description

Brake Vacuum Pump 

Vehicles equipped with 2.0L GTDI engines utilize an engine mounted/cam driven vacuum pump to supply vacuum to the brake booster.

Brake Booster Vacuum Sensor 

The brake booster vacuum sensor is a piezoelectric device used by the ABS module to monitor the vacuum in the brake booster. The sensor is hardwired to the ABS module by 3 circuits. One circuit is for the 5 volt sensor supply, one circuit is for sensor ground and one circuit is for sensor output. The sensor output ranges from 0.7 volt to 4.9 volts, depending on the amount of vacuum in the booster. The sensor is located on the front of the brake booster at the 6 o'clock position and can be serviced separately from the brake booster.