Description And Operation: Description
WARNING: This page is about a different car, the 2019 Fiat 500X. However, it is still accessible from the selected car via links, so may be relevant.
The Parking Assist Module (PAM) has the following characteristics:
- It receives power supply for its operation.
- It provides power supply to the 4 sensors.
- It receives signals from the 4 ultrasonic sensors.
- It manages the presence of a possible trailer: it is configured to deactivate the rear sensors when a trailer is present.
- It communicates and transmits data over the high-speed CAN-C2 network.
If a fixed tow hook is present, the signal "Trailer presence" informs the PAM control unit to deactivate the rear sensors if a trailer is attached to the car. The signal "Trailer presence" is sent by the Trailer Tow Module (TTM) via CAN-BH.
To ensure the proper operation of the system when the trailer is not attached to the vehicle, the PAM control unit changes the sensor detection area range in order to take into account the space occupied by the tow hook.
The PAM cannot be adjusted or repaired and, if damaged or ineffective, it must be replaced with a new unit. The PAM software is flash programmable.