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.

Fig 1: Air Conditioning

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: Air Conditioning Wiring

Courtesy of SAAB-SCANIA OF AMERICA, INC.