Towing / Trailer System: 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

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, 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

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.