Control System Logic

When the touchscreen FDIM or voice commands are used and A/C is selected, the APIM sends the request message over the HS-CAN3 to the GWM. The GWM sends the message to the HVAC control module over the MS-CAN and the GWM sends the A/C request to the PCM over the FD-CAN.

When the customer directly inputs a climate control setting or an A/C request into the HVAC control module, the module sends the request to the GWM over the MS-CAN. The GWM relays the request to the PCM over the FD-CAN.