Parking System Control Unit Component Description - GF54.65-P-5002RD

Model 172.4 up to model year 2017

with code 230 (Advanced Parking Guidance)

Shown on model 172.4

Fig 1: Parking System Control Unit Components Location - Model 172.4 Up To Model Year 2017 With Code 230

Courtesy of MERCEDES-BENZ USA

Location

The parking system control unit is located on the equipment rack in the trunk.

Tasks

The parking system control unit is responsible for the following tasks:

The parking system control unit controls the Parking Guidance functions.

Reading in of sensors

The input factors are read in over the following connections:

Direct line

The signals from the following components are read via a direct line:

Left front outer parking system distance sensor (B8/1)
Left front center parking system distance sensor (B8/2)
Left front inner parking system distance sensor (B8/3)
Right front inner parking system distance sensor (B8/4)
Right front center parking system distance sensor (B8/5)
Right front outer parking system distance sensor (B8/6)
Outer right rear parking system distance sensor (B8/7)
Inner right rear parking system distance sensor (B8/8)
Inner left rear parking system distance sensor (B8/9)
Outer left rear parking system distance sensor (B8/10)

Chassis CAN

The following information is read-in over chassis CAN:

Provided by the front SAM control unit with fuse and relay module (N10/1):
- Status of electric parking brake from electric parking brake control unit (N128)
- Data of light sensor (B38/1) (without code 345 (Windshield wipers with rain sensor))
- Data of rain/light sensor (B38/2) (with code 345 (Windshield wipers with rain sensor))
- Parking system button status (N72/1s8)
- Status of backup lamp switch (S16/2) (with transmission 716)
Provided by the Electronic Stability Program control unit (N30/4):
- Signals from left front axle RPM sensor (L6/1)
- Signals from right front axle RPM sensor (L6/2)
- Signals from left rear axle RPM sensor (L6/3)
- Signals from right rear axle RPM sensor (L6/4)

Evaluation of input factors

The input factors that have been read in are evaluated by the integrated microprocessor and the relevant components are then actuated.

Actuation of components

Components are actuated with the following line:

Direct line

The following components are actuated via a direct line:

Wiring diagram for Parktronic system (PTS) control unit