Hyundai Genesis (DH): Front / Rear Parking Assist System / Description and Operation

Hyundai Genesis (DH) 2013-2016 Service Manual / Body Electrical System / Front / Rear Parking Assist System / Description and Operation

System Overview
RPAS (Rear Parking Assist System) is an electronic driving aid that warns the driver to be cautious while parking or driving at low speed. The sensor uses ultrasonic waves to detect objects within proximity of the vehicle.
RPAS consists of four RPS sensors which are detecting the obstacles and transmit the result separated into three warning levels, the first, second and third to BCM by Lin communication. BCM decides the alarm level by the transmitted communication message from the slave sensors, and then operates the buzzer or transmits the data for display.

System Block Diagram

System Operation Specification.
1.
INIT mode
(1)
System initializing time is 500ms after IGN1+ R Gear.
(2)
RPAS recognizes LID and sets the sensor ID up during initialization.
(3)
RPAS activates each sensor and then executes the diagnosis after finishing initialization of BCM
(4)
If the diagnosis is completed and sensor does not send an error message,

    Component Location 1. BCM (Body Control Module)2. Ultrasonic sensor     Rear parking assist control unit function is built in BCM (body control unit).

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