Towing Module: Description and Operation

Towing Recognition Control Module J345

The Towing Recognition Control Module is located behind the left side trim panel in the luggage compartment.

• Additional information:

refer to the Owner's Manual.

General Description

The Towing Recognition Control Module detects from a performance decrease of at least 5 W* the "use of trailer" and sends this information to diverse control modules via CAN-Bus.

Via CAN-Bus, the Towing Recognition Control Module is supplied with information (light control) from Vehicle Electrical System Control Module (J519) and Comfort System Central Control Module (J393).

* At least the turn signal or parking lamp must be switched on to detect "use of trailer".

DTC Recognition and Display

The Towing Recognition Control Module is equipped with On Board Diagnostics (OBD) which assists troubleshooting.

The "Guided Fault Finding" function is to be used for troubleshooting of one of the systems described, refer to => [ Vehicle Diagnosis, Testing and Information Systems ] Vehicle Diagnosis, Testing and Information Systems.