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.

IPMA Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Camera commands	APIM	Commands the visual park aid alert and zoom level on and off based on driver inputs through the audio system display.
Driver door ajar status	BCM	Generates the door ajar icon on the image when the LH front door is ajar.
Gear lever position	PCM/ TCM (diesel)	Enables the front or rear camera views based on the current gear selection.
Left rear door ajar status	BCM	Generates the door ajar icon on the image when the left rear door is ajar.
Liftgate ajar	BCM	Disables the guidelines and visual park aid alert when the tailgate is open.
Passenger door ajar status	BCM	Generates the door ajar icon on the image when the RH front door is ajar.
reverse state	PCM	Enables the front or rear camera views based on the current gear selection.
Right rear door ajar status	BCM	Generates the door ajar icon on the image when the right rear door is ajar.
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	Supports the front and rear camera standby mode. Turns the camera image output off when vehicle speed is 16 km/h (10 mph) or greater and turns the camera image output on when the vehicle speed is 12 km/h (8 mph) or less.

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 IPMA to support the active guideline feature.

APIM Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Camera front display status	IPMA	Enables the video display when the camera selection switch is pressed.
Camera view status	IPMA	Indicates the active view that has been selected.
Camera zoom status	IPMA	Indicates the zoom view that has been selected.
Gear lever position	PCM/ TCM (diesel)	Enables and disables the video display based on the current gear selection.
Parking aid sensor data	IPMA	Generates the visual highlights in the zone where an object is detected by the rear audible parking aid system.
Rear camera on demand request	HVAC module	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 is used to turn the rear camera display off after the vehicle speed exceeds a preset threshold.