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

Model 172.4 as of model year 2017 

with code 230 (Advanced Parking Guidance) 

Illustration shows model 172 up to 29.02.2016 

Location 

The parking system control unit is on the equipment carrier plate in the trunk.

Tasks 

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

• Control of systems 
• Reading in of sensors 
• Evaluation of input factors 
• Actuation of components 

Control of systems 

The parking system control unit controls the functions of the exclusive parking assist.

Reading in of sensors 

The input factors are read in over the following connections:

• Direct line 
• Chassis CAN 2 (CAN E2) 

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 2 

The following information is read-in over chassis CAN 2:

• Status of the parking brake from the electric parking brake control unit (N128)
• Data from the light sensor (B38/1) (without code 345 (Rain sensor))
• Data from the rain/light sensor (B38/2) (with code 345 (Rain sensor))
• Parking system button status (N72/1s8)
• Status of the backup lamp switch (S16/2) (with transmission 716)
• 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 

The components are actuated via a direct line.

Direct line 

The following components are actuated via a direct line:

• Rear parking system warning indicator (A44/3)
• Instrument panel parking system warning indicator (A44/4)
• Parking system distance sensors

Wiring diagram for Parktronic system (PTS) control unit

PE54.65-P-2101-97TAA