When the vehicle is switched off, the map reading lights, the glovebox lights, the engine compartment lights and the luggage compartment lights can be switched on.The voltage (B+ supply) for these consumer loads is supplied by the general module.
To ensure the vehicle battery cannot discharge when the lights are permanently switched on, the general module switches off the B+ supply 16 minutes after terminal R has been switched off.
The "load cutout" line also leads to the closed-circuit current cutout relay K72.This relay switches the load circuits for:
The relay K72 therefore disconnects these systems from the terminal 30 supply 16 minutes after terminal R is switched off.
The specified loads are switched on again when terminal R or terminal 15 is switched on or when a signal change takes place at an input of the general or peripheral module:e.g. opening a door, opening the front lid, unlocking a door.
Note
In the case of faults in the voltage supply for seat and steering column adjustment, in addition to checking the supply lines and fuses, the closed-circuit cutout relay must also be checked with the diagnosis program "closed-circuit current cutout".