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Towing Recognition Control Module -J345-

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The Towing Recognition Control Module -arrow- is located behind the left luggage compartment side trim.

Fig 1: Identifying Towing Recognition Control Module J345
GWWN97-0604Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Fig 2: From MY 2010
GWWM97-10000Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

General Information 

The towing recognition control module detects from a performance decrease in the "towing mode" of at least 5 W and sends this information to diverse control modules via CAN-Bus. At least the turn signal or parking lamp must be switched on to detect "use of trailer".

The towing recognition control module is supplied with information (light control) from the Vehicle Electrical System Control Module -J519- and Comfort System Central Control Module J393 via the CAN databus.

Additional information: 

DTC Recognition and Display 

The towing recognition control module is equipped with OBD.

Use the Vehicle diagnostic tester under "Guided Fault Finding".

Remove and install the towing recognition control module -J345-, through MY 2009, refer to TOWING RECOGNITION CONTROL MODULE -J345- 

Replace the towing recognition control module -J345-, through MY 2009, refer to REPLACING, THROUGH MY 09 

Towing recognition control module -J345- output diagnostic test mode (through MY 2009), refer to OUTPUT DIAGNOSTIC TEST MODE (DTM) 

Remove and install the towing recognition control module -J345-, from MY 2010, refer to TOWING RECOGNITION CONTROL MODULE -J345-, FROM MY 10 

Replace the towing recognition control module -J345-, from MY 2010, refer to REPLACING, FROM MY 10 

Towing recognition control module -J345- output diagnostic test mode bulbs (from MY 2010), refer to TOWING RECOGNITION CONTROL MODULE - J345- OUTPUT DIAGNOSTIC TEST MODE BULBS, FROM MY 10