Operation CHARM: Car repair manuals for everyone.

Test Point 6



Test point 6
Pressure test on the booster circuit (brake booster and lock control)


The following are tested:
- Freedom from leaks of the booster circuit
- Pressure accumulator (gas charging pressure)
- Switching points for the booster circuit (brake pressure warning lamp No.13 and operating pressure) Brake pressure warning lamp No.13, refer to test point 1.

Frequent operation of the pressure pump:
It is normal for the pressure pump (pump assembly) to start running after every 2nd or 3rd braking operation.