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5.2.1. System check
- without brake pressure -
After the installation of or any alteration
to the ABS system the correct pneumat-
ic and electrical allocation must be
checked.
Requirement:
– Fault-free system
– Wheel turned from rolling road or by
hand (V= 1,8-15 km/h).
Testing:
– Start function test as described
above
– Turn one wheel then stop it.
– The ECU activates the appropriate
modulator as soon as the wheel is
stationary.
If you only wish to test the electrical sen-
sor/modulator set-up, while the modula-
tor is in operation the correct modulator
can be ascertained by listening or con-
tact.