Operation Manual

The speeds of the front and rear
wheels are compared and the
angle of heel taken into account
as one means of detecting the
rear wheel's incipient tendency to
spin or slip sideways. If the elec-
tronic processor receives values
that it considers implausible over
a lengthy period, a dummy value
is used for the angle of heel or
the DTC function is switched off.
Under these circumstances the
indicator for a DTC fault shows.
Self-diagnosis has to complete
before fault messages can be
issued.
The BMW Motorrad DTC can
issue an error message under
the exceptional riding conditions
outlined below.
Exceptional riding
conditions:
Riding for a lengthy period with
the front wheel lifted off the
ground (wheelie) and DTC de-
activated.
Rear wheel rotating with the
motorcycle held stationary by
applying the front brake (burn-
out).
Heating up with the motorcycle
on an auxiliary stand, in neutral
or with a gear engaged.
If the front wheel lifts clear of the
ground under severe accelera-
tion, the DTC reduces engine
torque until the front wheel re-
gains contact with the ground.
Under these circumstances,
BMW Motorrad recommends
rolling the throttle slightly closed
so as to restore stability with the
least possible delay.
When riding on a slippery sur-
face, never snap the throttle
twistgrip fully closed without
pulling the clutch at the same
time. Engine braking torque can
cause the rear wheel to skid, with
a corresponding loss of stability.
The BMW Motorrad DTC is un-
able to control a situation of this
nature.
Tyre pressure
monitoring RDC
with tyre pressure monitoring
(RDC)
OE
Function
A sensor integrated into each
tyre measures the air tempera-
ture and the air pressure inside
the tyre and transmits this in-
formation to the control unit.
Each sensor has a tripswitch
that does not enable transmis-
sion of the measured values un-
til the motorcycle has acceler-
ated to about 30 km/h. The dis-
play shows "--" for each tyre
until the tyre-pressure signal is
received for the first time. The
sensors continue to transmit the
measured-value signals for ap-
proximately 15 minutes after the
motorcycle comes to a stop.
6
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z Engineering details