Trailer recognition, function - GF82.10-P-2006S
MODEL 220 with CODE (299) Trailer hitch
The trailer recognition fulfills the following functions:
- Actuation of the trailer lighting
- Monitoring of the trailer
- Monitoring of the pivoting trailer hitch
Control of trailer lighting
The trailer recognition control module (N28/1) receives the following signals from the data bus (CAN):
- From electronic ignition/starter switch control module (N73)
- Stop lamp on/off
- Reverse lamp on
- Rear SAM control module (N10/8)
- Tail/parking lamp on
- Rear fog lamp on
- Turn signal lamp on
- Anti-theft alarm on
The trailer recognition control module switches on the following lamps on the trailer via the 13-pin trailer hitch socket (X58) depending on the requirements:
- Tail lamps/parking lamps
- Stop lamp
- Reverse lamp
- Rear fog lamp
- Turn signal lamps
- License plate lamps
In the event of a defect in the trailer recognition control module or the data bus the tail lamps are switched on.
Monitoring of pivoting trailer hitch
The trailer recognition control module monitors the towing hitch release switch (S62/24).
If the control module recognizes that the trailer hitch is not properly arrested, it sends a corresponding signal to the instrument cluster (A1) via the data bus and switches on the LED display on the towing hitch release (A63) for max. 30 sec.
Trailer recognition
When a trailer is connected to the trailer hitch socket the trailer recognition microswitch (X58s1) is connected to ground. The trailer recognition control module sends the signal "trailer recognized" via the data bus when the trailer recognition microswitch is connected to ground or a stop lamp is recognized.
Monitoring the trailer
The trailer recognition control module checks all lamps on the trailer and sends a signal to the instrument cluster via the data bus if any of the lamps are defective.
When the anti-theft-alarm is activated a small current flows through the trailer stop lamps at regular intervals. The trailer recognition control module recognizes an increase in the voltage when the circuit is interrupted, i.e. connector disconnected or wire cut, and sends a signal to trigger the alarm via the data bus.
| Trailer recognition control module, location/purpose | GF82.10-P-2106S | ||
| Jacket tube module, location/purpose/design/ function | GF54.21-P-4104S | ||
| Rear signal acquisition and actuation module (SAM), location/purpose/design/ function | GF54.21-P-4103S | ||
| Electronic ignition/starter switch control module (EIS), location/purpose/design/function | GF80.57-P-4102S |