Technical data

65
CAN information exchange
Additional low range shift stage
Information sent by the J554
control unit.
Information received and
evaluated by the J554 control
unit.
Engine control unit:
Engine speed
Engine torque, various
Clutch status (of F36)
Road speed
Intake air temperature
Engine control unit status
Control unit for additional shift
stage J554
System status (low range,
low range OFF, etc...
Low range display status
Switching status
Self-diagnosis fault memory entry
Speed limiter status
CAN drive high
CAN drive low
ESP control unit:
Wheel speed FL
Wheel speed FR
Wheel speed RL
Wheel speed RR
For further information on the CAN
bus, please refer to SSP 186 and 213.
The system overview displays the information
which is provided by the gearbox control unit
via the CAN bus and/or received and used by
the networked control units.
In the case of the additional low range shift
stage, the information exchange takes place
via the CAN drive between the additional shift
stage control unit J554 and the networked
control units, with the exception of certain
interfaces.