Parktronic system (PTS) control unit, component description - GF54.65-P-5000SX

MODEL 221.0 /1, 216.3

with CODE (220) Parktronic system (PTS)

up to Model Year 8

Shown on model 221.0

Fig 1: Locating Parktronic System Control Unit

Courtesy of MERCEDES-BENZ USA

Location

The PTS control unit is located behind the panel in the right luggage compartment.

Task

Voltage supply and actuation
- of front PTS ultrasonic sensor (B8/1, B8/2, B8/3, B8/4, B8/5, B8/6)
- of rear PTS ultrasonic sensor (B8/7, B8/8, B8/9, B8/10)
- of rear PTS warning indicator (A44/3)
Actuation of warning indicator in multifunction display (A1p13) instrument cluster (A1)
Evaluation of echo propagation times of ultrasonic sensors for calculation of distance to obstacle
Bidirectional data transfer for rear warning indicator
Data exchange over Interior CAN
System check and treatment of fault
Diagnosis of Parktronic system (PTS)

Discrete inputs

Discrete output

Signal inputs over CAN

Driving position recognition signal from intelligent servo module for DIRECT SELECT (A80)
Vehicle speed signal from instrument cluster
Ambient brightness signal from rain/light sensor (B38/2) over overhead control panel control unit (N70)
Signal on manual deactivation or activation from PTS OFF switch (S6/2s12) over upper control panel control unit (N72/1)
Signal for trailer recognition from trailer recognition control unit (N28/1) (with code (550) Trailer hitch)

Signal outputs over CAN

Signal for actuation of warning indicator in multifunction display to instrument cluster
Signal for muting audio components to COMAND controller unit (A40/3)
Signal for actuation of LED in PTS OFF switch over upper control panel control unit