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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1178 (Climate Control System - General Information) >> Description And Operation >> Climate Control System - System Operation and Component Description >> System Operation >> Network Message Charts

Network Message Charts

WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

Module Network Input Messages - APIM (DATC 

Broadcast Message Originating Module Message Purpose
Climate control button status FCIM This message contains the climate control button status.

Module Network Input Messages - FCIM (DATC) 

Broadcast Message Originating Module Message Purpose
A/C clutch status PCM This message contains the A/C compressor clutch status. The PCM sends the message to the GWM and the GWM sends it to the FCIM.
Ambient air temperature PCM This message contains raw value from the ambient air temperature sensor. The PCM sends the message to the GWM and the GWM sends it to the FCIM.
Climate control requests APIM This message contains both the climate control system voice commands as well as all climate control system touch screen inputs. The APIM sends the message to the GWM and the GWM sends it to the FCIM.

Module Network Input Messages - PCM 

Broadcast Message Originating Module Message Purpose
A/C request FCIM This message requests the A/C system to be engaged.
Evaporator temperature FCIM This message contains the evaporator temperature. The PCM uses the evaporator temperature to control the A/C compressor clutch.