2003-2015 Volkswagen Multivan SUV Electrics -> The onboard supply control unit J519 User Manual
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Electrics -> The onboard supply control unit J519 for Your Volkswagen Multivan SUV Fifth Generation (2003-2015)

Electrics  
The onboard supply control unit J519  
The new onboard supply control unit J519 in the T5 2010 has had various functions added to it. In contrast to the  
onboard supply control unit in the previous model, it now also handles the functions of the convenience system  
central control unit J393.  
The onboard supply control unit J519 is connected to the onboard supply system via two 73-pin connectors.  
Depending on the variant of the onboard supply control unit J519 (which varies in accordance with the vehicle  
equipment), it takes over the control of a wide variety of bulbs by means of integrated semiconductor switches.  
The particular bulb function is switched via one pin each in this case (e.g. all the turn signals on one side).  
Bulb monitoring has been implemented for the bulbs switched by the onboard supply control unit.  
Configuration  
previous model  
Configuration  
model year 2010  
Convenience system  
central control unit J393  
S453_057  
Onboard supply control  
unit J519  
New onboard supply control unit J519  
Depending on the control unit variant, the J519 controls at least the following external lighting functions  
and monitors them:  
Turn signal  
Side light/tail light  
Brake light  
There are also bulbs that are switched via relays, e.g. main beam and headlight flash.  
The aerial for radio remote control is integrated in the new onboard supply control unit. It is not configured as a  
wire aerial but rather as a printed circuit board aerial.  
44  
Installation location  
The onboard supply control unit is fitted in a bracket  
on the left under the dash panel.  
The picture shows a view from the engine  
compartment through a cut-out opening  
in the bulkhead.  
S453_069  
Function  
The range of functions depends on the equipment. More complex equipment extends the range of functions  
compared to the more straightforward equipment, as shown by the functions listed in the table.  
The functions listed in the table include those functions that are used in the T5 2010 with its current equipment - the  
full range of possible functions of the onboard supply control unit is more extensive.  
Control unit version  
Range of functions of onboard supply control unit  
Medium ++  
-
-
-
-
-
-
-
-
-
-
-
Load management  
-
-
-
-
-
-
-
-
Side light and parking light control  
Seat heater and tilting/sliding sunroof enable  
Central locking  
Control of electric fuel pump  
Terminal control/terminal registration  
Front and rear wiper control  
Horn control  
Anti-theft alarm  
Radio remote control (433 MHz)  
Diagnostic interface for data bus  
CAN diagnosis, driveline and convenience  
LIN data bus door (driver and front passenger  
door, multifunction steering wheel)  
LIN data bus roof (rain/light sensor, interior  
monitor/tilt sensor)  
Battery isolation relay control  
Heated rear window control  
Heated exterior mirror control  
Headlight washer system control  
Interior light control  
-
Brake light and turn signal/hazard warning  
light control  
High+  
Lights  
-
-
-
-
-
Shift lock and starter interlock  
Reversing light control (DQ500 only)  
Cruise control system  
Fog light/static turning light control  
LIN data bus anti-theft alarm (alarm horn)  
-
-
-
-
-
-
Enable/read in main beam, light flash  
Automatic running light, coming home, leaving home  
Low beam, number plate light, daytime running light control  
Rear fog light control  
Reversing light control  
Additional variant for radio remote control (315 MHz)  
45  

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