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Home >> Ford >> 2021 >> Explorer Base, 2.3L Eng VIN H, 4WD >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - General Information (1 Of 2) >> Description And Operation >> Climate Control System - System Operation and Component Description >> Network Message Chart
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Network Message Chart

Module Network Input Messages - ACCM 

Broadcast Message Originating Module Message Purpose
Ambient air temperature filtered PCM / PCM_HEV This message contains the climate control system controls ambient air temperature information.

Module Network Input Messages - APIM 

Broadcast Message Originating Module Message Purpose
Climate control button status HVAC This message contains the climate control button status.
Climate control temperature display HVAC This message contains the HVAC temperature setting.
Front blower indicator HVAC This message contains the HVAC blower motor setting for the touch screen display.
Temperature unit selection HVAC control module This message contains the IPC temperature setting.
HVAC front blower indicator HVAC control module This message contains the HVAC blower motor setting.
Outside Air Temperature HVAC control module This message contains the Ambient Air Temperature information for the FDIM touchscreen outside air temperature display.

Module Network Input Messages - FCIMB 

Broadcast Message Originating Module Message Purpose
Climate control touchscreen and voice requests APIM This message contains both the climate control system voice commands as well as all climate control system touchscreen inputs.
Climate control status HVAC control module This message contains the HVAC mode status for the mode indicators.

Module Network Input Messages - HVAC control module 

Broadcast Message Originating Module Message Purpose
Remote start status BCM This message contains the climate control system controls request for remote start.
A/C clutch status PCM This message contains the A/C compressor clutch status.
Ambient air temperature PCM This message contains raw value from the ambient temperature sensor.

Module Network Input Messages - PCM 

Broadcast Message Originating Module Message Purpose
A/C request HVAC control module This message requests the A/C compressor to be engaged.
Evaporator temperature HVAC control module This message contains the evaporator temperature. The PCM uses the evaporator temperature to determine the A/C compressor output.
HVAC remote start request HVAC control module This message contains the climate control system controls for ambient air temperature information.