Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
Ignition status | BCM | Used to communicate the ignition switch state. |
Outside air temperature | FCIM | Used to temperature compensate the parking aid sensor data. |
Parking aid enable/disable request | IPC | Used to enable or disable the parking aid based on driver input. |
Gear position (automatic transmission) | PCM | Used to enable or disable the parking aid depending on the selector lever position. |
Reverse gear (manual transmission) | PCM | Used to enable or disable the parking aid depending on the gearshift lever position. |
Vehicle speed | PCM | Used to disable and enable the parking aid based on vehicle speed. |
IPC Network Input Messages
Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
Parking aid chime request | PAM | Used to command parking aid warning tones through the audio system speakers. |
Parking aid fault status | PAM | Used to generate the parking aid warning message and chime in the event of a parking aid system concern. |
ACM and DSP Network Input Messages
Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
IPC chime request | IPC | Input used to control the audio chime output. This message contains the parking aid chime request data. |
Audible Parking Aid System Operation
The PAM calculates the distance to an object within a 170 degree semicircular area (azimuth) around the rear of the vehicle when the selector lever (automatic transmission) or gearshift lever (manual transmission) is in reverse. When the system is active and an object is detected within the rear parking aid azimuth around the rear of the vehicle, a variable rate warning tone is sounded through the rear audio system speakers.
The rear parking aid system calculates the distance to an object around the rear of the vehicle using 4 ultrasonic sensors. The rear outer parking aid sensors can detect objects approximately 24 in (60 cm) from the rear of the vehicle. The rear inner parking aid sensors can detect objects approximately 70 in (177 cm) from the rear of the vehicle. Objects that are approximately 14 in (35 cm) to the side of the rear bumper can also be detected by these sensors. Objects must be 12 in (30 cm) above the ground to be detected by the rear parking aid system. The PAM supplies voltage and ground to the rear ultrasonic sensors while monitoring a signal return circuit from each sensor. The 4 sensors share common voltage and ground circuits.
Only objects that reflect a sufficient amount of sound waves are detected by the rear parking aid sensors. The surface properties, size and composition of an object can affect the ability of the parking aid system to detect the object. Incorrect sensor alignment or installation, dirt or ice covered sensors, heavy rain and snow can also cause objects not to be detected.
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.