Braking Sensor/Switch: Service and Repair

Removing
- Release vacuum from brake booster by operating brake pedal several times.
- Move coolant expansion tank to one side.
- Remove wiring harness connector.





- Pry out circlip from brake pedal position sensor -G1OO- with scribe or similar tool.





- Pull brake pedal position sensor -G1OO- from brake booster.





Installing

Note: The brake fluid reservoir has been removed for illustration purposes only.





- Install new circlip so that gap in circlip points downward (arrow).
- Coat new 0-ring seal with lubricant (e.g. soft soap) and install on sensor.

Note: The brake pedal position sensor must be installed so that the groove (arrow) is 180° opposed to the circlip gap.

- Insert brake pedal position sensor into brake booster and listen for click as circlip locks into groove of sensor.
- Gently pull on sensor by hand to ensure that it is properly seated.
Reconnect wiring harness connector.
- Move coolant expansion tank back to original position.

CAUTION: If the 0-ring does not seal properly insufficient braking power and poor idling might result.