Valid from serial number T-code
713962- 403-414, 669-671, 716-718
Order number Date
218920-040 2005-06-01
© BT Europe AB Service Manual REFLEX RR B,E RR B,E CC 21- 39
Electrical system – 5000
Functional description
21.4.5 Steering
When the wheel is turned, voltage is supplied by tachometer U1 to A5,
which provides progressive power to steering motor M6. This means
that the faster the steering motion, the faster the steering motor runs.
Progression also means that the higher the driving speed, the lower the
steering speed. Drive motor speed is measured by sensor U11.
When the steering wheel is turned, steering wheel sensor S65 is actu-
ated and voltage is fed to A5. The opposite travel direction is shown on
the display. The electronics automatically indicate the correct travel
direction in that switch S65 transmits signals for 180° of the possible
360. Sensor S65 must pass one of the reference points in order for the
electronics to determine the direction of the steering wheel and indicate
the travel direction. The function is initiated by a turn of the wheel. This
must be done at the initial start and after servicing.
LEDs 209, 210 and 211 light up depending on whether the respective
sensors are actuated or not.
21.4.6 Steering wheel indicator
When the wheel is turned, sensor S66 sends signals to A5, which indi-
cates the travel direction on the display. Sensor S65 must pass one of
the reference points in order for the electronics to determine the direc
-
tion of the steering wheel and indicate the travel direction. The function
is initiated by a turn of the wheel. This must be done at the initial start
and after servicing. When the travel direction is changed using the
lever, the arrows switch on the display.
LEDs 209, 210 and 211 light up depending on whether the respective
sensors are actuated or not.
Designation Diode number
STEERING WHEEL REF. 180° 209
STEERING WHEEL ANGLE A 210
STEERING WHEEL ANGLE B 211
Designation Diode number
STEERING WHEEL REF. 180° 209
STEERING WHEEL ANGLE A 210
STEERING WHEEL ANGLE B 211
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