Trailer sensing, function - GF82.10-P-3014GZU
MODEL 164.1/8 with CODE (494) USA version with CODE (550) Trailer hitch up to Model Year 2008
Shown on model 164.1
Function requirements
- Terminal 15 ON
- The trailer is mechanically coupled.
Function sequence
The trailer's connecting line is hooked up to the trailer hitch socket (7-pin). The trailer's left turn signal lamp and stop lamp circuits are supplied briefly with current from the rear SAM control unit.
The rear SAM control unit detects from the closed circuit for the turn signal lamp or the stop lamps that a trailer is electrically connected.
The rear SAM control unit signals the CAN message "Trailer connected" via CAN-B.
The rear SAM control unit activates the actuation and monitoring of the trailer lighting system.
Vehicles with Parktronic system (PTS), code 220
The CAN message via CAN-B triggers the PTS control unit to shut off the Parktronic sensors in the rear bumper.
| Rear SAM control unit, component description | GF54.21-P-7030GZ |