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

MODEL 207.3/4 as of model year 2014 with CODE 235 (Active Park Assist) 

MODEL 207.3/4 up to model year 2014 with CODE 220 (PARKTRONIC) with CODE 498 (Japanese version) 

MODEL 207.3/4 up to model year 2014 with CODE 230 (Advanced Parking Guidance) without CODE 498 (Japanese version) 

Illustration shows model 207.3 as of 01.06.2013 

Location 

The parking system control unit is located under the front passenger footwell step plate.

Task 

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

• Controlling functions 
• Reading in of sensors 
• Evaluation of input factors 
• Actuation of components 
• Transmitting signals 

Controlling functions 

The parking system control unit controls the following functions:

• PARKTRONIC (with CODE 220 (PARKTRONIC) and CODE 498 (Japan version))
• Parking Assist (with CODE 230 (Exclusive Parking Assist) and without CODE 498 (Japan version))
• Active Parking Assist (with CODE 235 (Active Parking Assist))

Reading in of sensors 

The input factors are read in via the following connections:

• Direct line 
• Chassis CAN (CAN E) (up to 31.05.2013) or chassis CAN 2 (CAN E2) (as of 01.06.2013) 

Direct line 

The signals from the following components are read via direct lines:

• 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)
• Left rear center parking system distance sensor (B8/11) (as of 01.06.2013)
• Right rear center parking system distance sensor (B8/12) (as of 01.06.2013)

Chassis CAN (up to 31.05.2013) or chassis CAN 2 (as of 01.06.2013) 

The following signals are read in via the chassis CAN (up to 31.05.2013) or chassis CAN 2 (as of 01.06.2013):

• Vehicle speed
• Status of gear range (with transmission 722.9)
• Status of backup lamp switch (S16/2) (with transmission 711, 716)
• Status of rain/light sensor (B38/2)
• Parking system button status (N72/1s8)
• Status of Electronic Stability Program control unit (N30/4) (up to 31.05.2013 without CODE 233 (DISTRONIC PLUS) or as of 01.06.2013) or Premium Electronic Stability Program control unit (N30/7) (up to 31.05.2013 with CODE 233 (DISTRONIC PLUS))
• Wheel speeds and wheel rotation direction
• Electric power steering torque sensor signal (A91b1) (toothed rack position) (with CODE 235 (Active Parking Assist))
• Terminal status of terminal 15
• Combination switch switch position (S4)
• Left multifunction steering wheel button group signal (S110)
• Trailer recognition status (with CODE 550 (Trailer hitch))

The functions that use these signals are described in the individual function descriptions.

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 following components are actuated via direct lines:

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

Transmitting signals 

The parking system control unit sends the following signals via the chassis CAN (up to 31.05.2013) or chassis CAN 2 (as of 01.06.2013):

• Request to display message or issue warning tone
• Parking system status indication request
• Electric power steering request (steering angle) (with CODE 235 (Active Parking Assist))
• Information on distance to obstacle (remaining distance to obstacle) (with CODE 235 (Active Parking Assist))

	Wiring diagram for Parktronic system (PTS) control unit	MODEL 207.3/4 up to model year 2014 with CODE 220 (PARKTRONIC) with CODE 498 (Japanese version) MODEL 207.3/4 up to model year 2014 with CODE 230 (Advanced Parking Guidance) without CODE 498 (Japanese version)	PE54.65-P-2101-97EAA
		MODEL 207.3/4 as of model year 2014 with CODE 235 (Active Park Assist)	PE54.65-P-2101-97EAB