Scheme 181
Brief Description Of The SID
The purpose of the SID is firstly to proved the driver with information and secondly to control the horn, instrument and display lighting, and perform calculations for the SID trip computer functions. It has its own diagnostic function and diagnostic trouble codes are generated when faults occur.
The SID receives information from its own sensors and switches as well as from other systems. The SID sends out certain information on the bus.
The SID has the following sensors
Outside temperature sensor
Steering wheel controls
Coolant level sensor
Washer fluid level sensor
Filament monitor, front lights
Rheostat
Interior light sensor