Air conditioning
| 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.
| A/C relay |
The main instrument unit is connected to the relevant engine management system's output to the A/C relay on pin 8 (K22). The engine management system grounds the output when the A/C relay is to be activated and the main instrument unit sends this information on the bus as A/C relay ON. DICE uses the information for activation of the radiator fans.
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