9-3 Viggen Coupe (9400) L4-2.3L Turbo (B235) HO (1999)
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Temperature Gauge: Description and Operation
Part 1 Of 2
Part 2 Of 2
The engine coolant temperature sensor (202) informs the driver of the engine's coolant temperature.
The engine coolant temperature sensor is supplied with current and controlled by the Trionic T7 engine control module. The control module
continuously transmits coolant temperature information on the bus. DICE receives coolant temperature information from the MIU via the I bus.
The coolant temperature gauge scale is divided into 5 fixed points. The main instrument unit is programmed to guide the gauge needle to the fixed
points at the specified temperatures in order to give stable indication at normal coolant temperatures.
The fixed points are programmed in the main instrument unit (factory setting):
