Mk-3 Navigation System On-Board Monitor with Widescreen Display Chapter 2 P.2
Course Contents/Background Material
© BMW AG, Service Training
Speed sensors
An ABS wheel speed signal is analysed for more accurate
location determination.
E38/E39/E52/E53 series
The front left wheel sensor supplies the signal. This signal is
processed and then transmitted to the navigation computer via
the ABS/ASC/DSC control unit.
E46 series
The rear left wheel sensor supplies the signal. This signal is
processed and then transmitted to the navigation computer via
the ABS/ASC/DSC control unit.
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