Trailer sensing, function - GF82.10-P-3014GZ
MODELS 164.1 with CODE (550) Trailer hitch except CODE (494) USA version
Function requirements
- Circuit 15 ON
- The trailer is mechanically coupled.
Function sequence
The trailer's connecting line is connected to the trailer hitch socket (13-pin). The trailer's left hand turn signal and stop lamp circuits are briefly energized from the rear SAM control unit.
The rear SAM control unit detects a closed circuit for the turn signal lamp or the electrically connected trailer's stop lamps.
The rear SAM control unit sends the "Trailer connected" CAN message via CAN-B.
The rear SAM control unit activates the actuation and monitoring of the trailer's lighting system.
Vehicles with Parktronic system (PTS), code 220
The CAN message authorizes the PTS control unit to switch-off the Parktronic sensors in the rear bumper via CAN-B.
| Rear SAM control unit, component description | GF54.21-P-7030GZ |