LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2012 >> Focus S, Standard Trans, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Climate Control System -- Electric) >> Description and Operation >> Climate Control System - System Operation and Component Description >> System Operation >> Network Message Chart
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Network Message Chart

WARNING: This page is about a different variant/trim than selected.
MODULE NETWORK INPUT MESSAGES - ACCESSORY PROTOCOL INTERFACE MODULE (APIM)

Broadcast Message Originating Module Message Purpose
Climate control status Heating, Ventilation, and Air Conditioning (HVAC) This message contains the Heating, Ventilation, and Air Conditioning (HVAC) status.
MODULE NETWORK INPUT MESSAGES - POWERTRAIN CONTROL MODULE (PCM)

Broadcast Message Originating Module Message Purpose
Air Conditioning (A/C) request Heating, Ventilation, and Air Conditioning (HVAC) module This message requests the A/C  compressor to be engaged.
Battery air flow request Battery Energy Control Module (BECM) This message requests the electric A/C  compressor to be engaged to cool battery packs.
Evaporator temperature Body Control Module (BCM) This message contains the evaporator temperature. The Powertrain Control Module (PCM) uses the evaporator temperature to cycle the electric A/C  compressor.
Sun Load Sensor Data Heating, Ventilation, and Air Conditioning (HVAC) module This message contains the sunload sensor information. The Powertrain Control Module (PCM) uses the sunload sensor information to increase the A/C  compressor clutch cycle time.
MODULE NETWORK INPUT MESSAGES - HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) MODULE

Broadcast Message Originating Module Message Purpose
Air Conditioning (A/C) compressor temperature status Air Conditioning Control Module (ACCM) This message contains the A/C  compressor temperature status.
Ambient air temperature Powertrain Control Module (PCM) This message contains raw value from the ambient air temperature sensor.
Climate control requests Accessory Protocol Interface Module (APIM) This message contains both the climate control system voice commands as well as all climate control system touch screen inputs.
Evaporator temperature Body Control Module (BCM) This message contains the evaporator temperature.
MODULE NETWORK INPUT MESSAGES - AIR CONDITIONING CONTROL MODULE (ACCM)

Broadcast Message Originating Module Message Purpose
Air Conditioning (A/C) compressor enable request Powertrain Control Module (PCM) This message requests the A/C  compressor to be engaged.