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Upshift Control
Purpose: To raise the speed shift by putting the left
hand on the steering wheel and pushing the
switch installed at the right console
Operation:
1. MC receives a signal by pushing the upshift switch
once when traveling with speed 1 while the travel
mode switch is set in auto 1-4L mode and the shift
switch is set in speed 4.
2. MC transmits the signal to the speed shift solenoid
valve of speed 2, and shifts up the vehicle speed.
3. When the upshift switch is pushed, the vehicle
speed is further raised to speed 3 and speed 4.
4. In case auto of the travel mode switch is selected,
the speed shift is raised, and returned to the auto
speed shift control in three seconds, eventually
raising automatically to the speed shift selected in
advance.
5. In case manual of the travel mode switch is se-
lected, the raised speed shift is kept.
6. In case of the following, the upshift switch control
is canceled.
•
Operation of the FNR lever or the FNR switch
•
Operation of the shift switch
•
Operation of the travel mode switch
•
Pushing the hold switch
(only when the auto mode of the travel mode
switch is selected)
NOTE: Althrough the upshift switch is pushed while
traveling at the speed shift slected by the
shift switch, the speed shift is not raised
further.
SYSTEM / Control System
T2-1-34
NOTE: The shift switch has two switches, and their
combination of ON varies depending on
each speed shift. The controller judges
which speed shift has been selected by the
combination of the two input signals.
NOTE: The FNR switch does not transmit the neu-
tral signal. In case of no electric current
from the FNR switch, the controller judges
that the switch is neutral (N).
NOTE: Each mode switch of the travel mode switch
is supplied with respectively different volt-
ages from the monitor unit, and when the
switch selects a mode MC judges which
mode has been selected by the input volt-
age.
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