73
Switch-on conditions: Switch-off conditions:
no tank warning Auxiliary heating active longer than 60 min
no crash signal from airbag control unit VAS diagnosis tester function basic setting
no cut-off level from control unit for power management Heater units error in operational mode
no message "Transport mode active" from control unit for
power management J644
Tank warning during operation
Crash signal during operation (in auxiliary
heating mode)
Cut-off level of control unit for power
management J644
In addition to the auxiliary heating with
CAN networking which is offered ex-works,
a conventional auxiliary heating without
CAN networking can be retrofitted in the customer
service process. To do that, wiring terminal 15,
as well as Climatronic control unit J255,
which has a separate input for this purpose, must be
adjusted accordingly. You can find more detailed
information on this in the respective installation
manual.
Reference
Please refer to the respective operation
manual for instructions on operating the
optional auxiliary heating.
Note
The telestart antenna is fused separately.
Defect fusing results in an appropriate fault
memory entry.
