Bendix CVS SmarTire TPMS Benutzerhandbuch - Seite 9

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7. TROUBLESHOOTING

The following messages may be displayed at the end of
the Learn process if it was not completed successfully:
A. Learn Time Out. The receiver did not receive an
expected response from a sensor within three (3) minutes
after being requested to learn a tire, and so the system
"timed- out". Re-attempt to communicate at least twice.
If unsuccessful, a sensor may be pointing directly down
into the ground, or away from the Gateway or Antenna,
causing the signal reception to be disrupted. In these
cases, it may be useful to move the vehicle forward or
backward about a half-turn of the wheels, to reposition
the sensor, and then retry.
It can be useful to look to see if the tire stems for dual-
wheel assemblies are installed with their valve stems
arranged 180° from each other, as recommended. If still
unsuccessful, try to initiate the sensor at the bottom of the
wheel, no matter where the valve stem is located. If this
attempt was successful, rotate the wheel 180 degrees
forward and initiate the sensor again at the BOTTOM of
the wheel. If the second initiation also provided a result,
it is evidence of a broken cradle and/or strap. The sensor
is simply falling to the lowest point in the wheel after each
rotation. Remove the tire and replace the cradle and strap.
Depending on the damage done to the sensor itself, it may
simply be pressed into a new cradle for reuse, however,
do not reuse the strap.
It is also important to check that the tool is held about
two (2) inches from the tire during the procedure – and
not touching the rim.
B. Duplicate Sensor ID. The sensor ID that was received
for the wheel position is already programmed into the
system at another wheel position. (This may occur when
rotating wheels if the original set of locations has not been
erased.) Repeat the process, ensuring you are initiating
the sensor you wish to learn. Take care when working
with dual tire assemblies to communicate with the correct
tire position.
It can be useful to look to see if the tire stems for dual-
wheel assemblies are installed with their valve stems
arranged 180° from each other, as recommended. You
can verify the location of the sensor in most cases, by
looking for the label attached to the rim during installation.
If still unsuccessful, try to initiate the sensor at the bottom
of the wheel, no matter where the valve stem is located. If
this attempt was successful, rotate the wheel 180 degrees
forward and initiate the sensor again at the BOTTOM of
the wheel. If the second initiation also provided a result,
it is evidence of a broken cradle and/or strap. The sensor
is simply falling to the lowest point in the wheel after each
rotation. Remove the tire and replace the cradle and strap.
Depending on the damage done to the sensor itself, it may
simply be pressed into a new cradle for reuse, however,
do not reuse the strap.
For more in-depth troubleshooting, consult the SmarTire
Tire Pressure Monitoring System (TPMS) by Bendix CVS
Operator's Manual (BW2799), available for download from
the Bendix website www.bendix.com.
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