The parking assistance module has three connectors that provide power, ground and CAN connections, as well as front and rear parking assistance sensors.
The medium speed CAN bus provides the following information from other systems:
- Anti-lock Brake System (ABS) Module - Vehicle Speed Signal
- Transmission Control Module (TCM) - Reverse Gear Engagement Signal
- Trailer module - a trailer connected to a vehicle
- Instrument cluster - outside temperature signal
The module also outputs messages via the medium-speed CAN bus, which are received by the integrated control module (ICM). The ICM processes these messages and converts them into MOST signals (Media Orientated System Transport), which are transmitted to the audio system's power amplifier.
These signals are then used by the power amplifier to emit appropriate warning signals from the front or rear speakers when an object is detected by the front or rear parking aid sensors. A warning signal can also be emitted to alert the driver to a malfunction in the parking aid system.
The parking assist module performs self-test routines and, when the parking assist system is active, checks the sensor wiring for short circuits or open circuits. If a malfunction is detected, a fault code is stored in the module's memory and, if necessary, either of the front and/or rear sensors can be disabled.
The driver is alerted to the malfunction by the LED in the system switch flashing and a continuous warning tone emitted for 3 seconds instead of the usual short beeps when the system is operating normally. The fault codes can be read via the diagnostic connector using the integrated diagnostic system (IDS).
(The publication was copied from a web resource: LRman.ru)
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