Control System Logic
When the customer directly inputs an A/C request into the FCIM , the module sends the request to the GWM over the Medium Speed Controller Area Network (MS-CAN). The GWM sends the request to the PCM over the High Speed Controller Area Network (HS-CAN). The PCM controls the A/C clutch relay.
The FCIM Programmable Module Installation (PMI) when it is replaced.