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Home >> Ford >> 2012 >> Explorer Limited, 3.5 8, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 307 (Parking Aid System) >> Description And Operation >> Parking Aid - Audible >> System Operation >> Network Message Chart

Network Message Chart

WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
PAM NETWORK INPUT MESSAGES

Broadcast Message Originating Module Message Purpose
Ignition status BCM  Used as a redundant input to confirm the ignition switch position.
Outside air temperature BCM  Used to temperature compensate the parking aid sensor inputs.
Parking aid enable status IPC  Used to enable or disable the parking aid.
Selector lever (PRNDL) status PCM TCM  Used to enable the parking aid when the transmission selector is in reverse.
Wheel speed data ABS  module Used to disable the parking aid if the vehicle speed exceeds a preset threshold.
IPC NETWORK INPUT MESSAGES

Broadcast Message Originating Module Message Purpose
Audio volume cutback PAM  Used to reduce the audio output from the audio system so a parking aid speaker chime can be heard.