9-5 Aero Wagon (9600) L4-2.3L Turbo (B235) HO (2001)
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Speedometer Module: Service and Repair
Programming the Speedometer
Programming The Speedometer
The ABS or TC/ABS control module reads 29 pulses per wheel revolution. Depending on the dimensions of the tyre and rim (physical circumference),
one kilometre will correspond to a different number of pulses when the main instrument unit receives the value from ABS or TC/ABS. It is therefore
possible to change how the main instrument unit interprets the total number of pulses per kilometre so they correspond to the tyre dimension fitted on the
car. Programming must be carried out so that the speedometer and odometer can give the driver the correct information. On certain markets, it is a legal
requirement that the speed the speedometer shows is between 0 and 10 km/h too high.
NOTE: If the speedometer is not programmed correctly, the speed that is displayed to the driver may be lower than the actual speed and SID will
provide incorrect information on the fuel quantity and time of arrival.
