Self-Study Program

47
Emergency function
In the event of a fault in switches G525 and G526,
the system switches over from the main rear lights
in the tailgate to the additional rear lights in the
bumper. This action is not indicated in the dash
panel insert.
In this case, a new attempt to switch on the main
rear lights in the tailgate is not made until the next
ignition OFF/ON cycle.
Fault memory entries
The number of fault memory entries for the lights
has been reduced. Only one fault memory entry is
made per light assembly. Thus, only four fault
memory entries are
needed to cover the complete rear lighting.
From the environmental data of the corresponding
fault memory entry it can be determined which
lamp in a light assembly is faulty.
Data blocks
The convenience system central control unit 2 J773
provides data blocks for the following functions:
– Onboard power supply
– Additional rear lights in the bumpers
–Interior light
– open sky system
– LIN communication
– Tailgate recognition
364_038
364_039
Final control test
The convenience system central control unit 2 J773 provides final control tests for the following functions:
– Additional rear lights
–Sidemarkers
– Interior lighting
– open sky system
Encoding
The convenience system central control unit 2 J773 provides codings for the following functions:
–Vehicle type
– open sky system
–Interior light
–Country
– Convenience opening of open sky roof
– Convenience opening of roll-up sun screen
– Convenience closing of roll-up sun screen
Switch operating flap
Switch operating flap
G525
G526