Network Message Chart

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

BCM Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Camera setting request	APIM	Commands the zoom level on and off based on driver inputs through the audio system display.
Gear lever position	PCM/ TCM (diesel)	Enables the video display when reverse (R) is selected.
Parking aid sensor data	PAM	Generates the visual highlights in the zone where an object is detected by the rear parking aid system.
Steering wheel angle	ABS module	Generates the intended vehicle path for the active guideline feature.
Trailer lamp connected	TRM	Disables the guidelines and visual park aid alert when a trailer is electrically connected to the vehicle. (if equipped with trailer tow)
Vehicle speed	PCM	When the video delay feature is turned on, this message is used to turn the rear camera display off after the vehicle speed exceeds a preset threshold.

APIM Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Camera settings	BCM	Displays the current status for active guidelines and visual park aid alert.
Gear lever position	PCM/ TCM (diesel)	Enables the video display when reverse (R) is selected.
Parking aid sensor data	PAM	Generates the visual highlights in the zone where an object is detected by the rear parking aid system.
Rear camera on demand request	BCM	Used by the APIM to command the audio system display on when the rear camera on demand is requested.
Vehicle speed	PCM	When the video delay feature is turned on, this message turns the rear camera display off after the vehicle speed exceeds a preset threshold.

ABS Module Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Steering angle	PSCM	The ABS module uses the steering angle sensor data to generate the steering wheel angle message that is sent to the BCM to support the active guideline feature.