9-3 SE Sedan (9400) L4-2.0L Turbo (B204) HO (1999)
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Air Conditioning Indicator Lamp: Description and Operation
Air Conditioning
A/C out
The main instrument unit is connected to the engine management system concerned by means of a lead from pin 9 (K22). DICE sends continuous bus
information A/C, unit ON/OFF. On receiving an A/C ON request, the main instrument unit control module applies B+ to the lead from pin 9 (K22) and
the engine management system then receives a request for activation of the A/C relay.
