Volkswagen Workshop Manuals
Passat Sedan V6-3.6L (BLV) (2008)
Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Description and Operation > Anti-Theft Immobilizer > Page 12
Alarm Module: Description and Operation
Towing Recognition Control Module (J345)
Towing Recognition Control Module - arrow - is located behind side trim at left rear in luggage compartment.
‹› Additional information:
Refer to the Owner's Manual.
‹› At this time, only control modules manufactured by Westfalia are installed in the Passat.
‹› Use the Power Outlet Tester (V.A.G 1537/A) to test the control module, refer to => [ Towing Recognition Control Module, Output Diagnostic
Test Mode ] See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Tow Sensor/Testing and Inspection/Scan Tool Testing and
The Towing Recognition Control Module detects from a performance decrease of at least 5 W* the use of a trailer and sends this information to
Via CAN-Bus, Towing Recognition Control Module is supplied with information (light control) from Vehicle Electrical System Control Module
At least the turn signal or parking lamp must be switched on to detect use of a 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.
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