audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Interior lighting > < Interior lighting, reading light, glove box light and vanity mirror light
General notes
General notes
The power supply for the front interior light -W1-, the reading lights -W13-, -W19-, -W47- and -W48-, the vanity mirror lights -L31- and the glove box light -W6- is provided via terminal 30G from the onboard supply control unit -J519-.
Terminal 30G is switched on by the onboard supply control unit -J519- under the following conditions:
   
ConditionComments
The vehicle is unlocked from outsideIf no door is opened after unlocking, terminal 30G is switched off again after 30 seconds
The ignition is switched on 
A door is opened
t  If no other switch-on condition is met when the last door is closed, terminal 30G is switched off after 30 seconds
t  If no other switch-on condition is met, terminal 30G remains active for a maximum of 10 minutes
t  When each additional door is opened the timer is reset and terminal 30G remains active for a further 10 minutes
t  If the switch-on time of 10 minutes has already been exceeded, and if another door is then opened or the door is closed and reopened, terminal 30G is again switched on for 10 minutes
A terminal 30G load is switched on while the vehicle's central locking system is not in SAFE mode
t  If no other switch-on condition is met when the terminal 30G load is switched off, terminal 30G is switched off immediately after the load is switched off
t  To prevent discharging of the battery due to the interior lighting being permanently active, terminal 30G is switched off after a maximum of 60 minutes when the ignition is off
t  When the load is switched off the timer is reset. If this load (or another load) is then switched on again, terminal 30G is switched on again for 60 minutes. This is also the case if the 60 minute switch-on time for the first load had already been exceeded.
A crash has occurred and the airbags have been triggered
t  The signals of the crash sensors are evaluated by the airbag control unit -J234- and transmitted over the CAN bus to the convenience system central control unit -J393-. This unit then sends the signal that a crash has occurred over the CAN bus to the onboard supply control unit -J519-.
t  The regular switch-off conditions for terminal 30G do not apply in this case. Terminal 30G remains active until the information signalling cancellation of the crash status is received from the convenience system central control unit -J393-

Terminal 30G is switched off under the following conditions:
   
ConditionComments
The deadlock mechanism is activated 
The ignition is switched offIf none of the above switch-on conditions is active, terminal 30G is switched off after 30 seconds
The maximum on-time of 60 minutes with the ignition off is exceeded 

   

Interior lighting > < Interior lighting, reading light, glove box light and vanity mirror light