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48 Transmission
9-5
Limp-home
In case of a major system error, such as a
mechanical fault with the system input or output
functions, or an internal fault in the control
module, all the control module functions will be
deactivated at the same time as the control
module sends the bus message "CHECK
GEARBOX unit ON" to turn on the indicator lamp
in the main instrument unit. A fault code will also
be stored.
The transmission will now be controlled solely by
the hydraulic system. This means that the
transmission functions will be limited to enable
the car to be driven to a garage, thus the name
limp-home.
Limp-home mode provides the following gear
positions:
Gear
position
P R N D 4 3 L=2, 1
Limp-
home
P R N 5 5 5 2
Note that 2nd gear must be engaged manually.
The CHECK GEARBOX lamp lights up and a
diagnostic trouble code is stored in the memory.