Parking system control unit component description - GF54.65-P-5002FL

MODEL 212.0/2 with CODE (230) Advanced Parking Guidance except CODE (498) Japan version 

MODEL 212.0/2 with CODE (220) PARKTRONIC with CODE (498) Japan version 

Front passenger footwell, partially disassembled 

Location 

The parking system control unit is located in the equipment support in the front passenger footwell.

Task 

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 
• Output of signals 

Control of systems 

The parking system control unit controls the following systems:

• PARKTRONIC (with code (220) PARKTRONIC)
• Exclusive parking assist (with code (230) Exclusive parking assist)

Reading in of sensors 

The input factors are read in via the following connections:

• Direct line 
• Chassis CAN (CAN E) 

Direct line 

The signals for the following components are read in directly:

• Outer left front parking system distance sensor (B8/1)
• Center left front parking system distance sensor (B8/2)
• Inner left front parking system distance sensor (B8/3)
• Inner right front parking system distance sensor (B8/4)
• Center right front parking system distance sensor (B8/5)
• Outer right front 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:

• Status of circuit 15
• Status of parking brake indicator switch (S12)
• Rain/light sensor data (B38/2)
• Parking system button status (N72/1s8)
• Status of backup lamp switch (S16/2) (with transmission 711, 716)
• Trailer status (recognized/not recognized) (with code (550) Trailer hitch)
• Vehicle speed signal
• Gear range status (for transmission 722.9 and 724.2)
• Status of combination switch (S4) (with code (230) Exclusive parking assist)
• Steering angle sensor signals (N49) (with code (230) Exclusive parking assist)
• Left multifunction steering wheel button group signals (S110) (with code (230) Exclusive parking assist)
• 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 connection:

• Direct line 

Direct line 

The following components are actuated:

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

Output of signals 

The parking system control unit sends the following signals over the chassis CAN:

• Steering instruction output, request (with code (230) Exclusive parking assist)
• Warning tone, request (with code (230) Exclusive parking assist)
• Parking space recognition, signal (with code (230) Exclusive parking assist)

Wiring diagram for Parktronic system (PTS) control unit

PE54.65-P-2101-97DAA