All-Wheel-Drive Controls, Optional - freightliner BUSINESS CLASS M2 Driver Manual

Controls
Bring the vehicle to an authorized Freightliner
service facility as soon as possible.
Interaxle Lock Switch
CAUTION
The interaxle lock should not be engaged on a
vehicle with obviously spinning wheels. Engage-
ment at high speed or power can damage the
axle(s).
The interaxle lock switch is a two-position guarded
rocker switch installed on vehicles with dual drive
axles. See Fig. 4.25. It causes both axle shafts to
rotate together.
10/26/2001
Fig. 4.25, Interaxle Lock Switch
To lock the axles together, press the upper half of the
rocker momentarily (at the LED). To turn off interaxle
lock, press the upper half of the rocker again.
When the panel lights are on, the double-axle icon is
backlit in green.
IMPORTANT: The interaxle lock rocker switch is
guarded to prevent unintentional switch activa-
tion. This switch does not have a diagnostic
blink function when inactive.
Axle Shift Switch
CAUTION
To prevent transmission and axle damage, make
sure the automatic transmission is in high range
when performing an axle shift with the vehicle
moving.
4.11
The axle shift switch is a two-position guarded rocker
switch installed on vehicles with two-speed axles.
See Fig. 4.26.
10/26/2001
To shift the axle from low speed to high speed, press
the upper half of the rocker momentarily (at the
LED). To turn the axle shift off (switch from high
speed back to low speed), press the upper half of
the rocker again.
NOTE: On vehicles with tandem drive axles,
there is an interlock that prevents a 2-speed
axle from shifting whenever the interaxle lock is
on.
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When the panel lights are on, the AXLE SHIFT leg-
end is backlit in green.
IMPORTANT: The axle shift switch is guarded to
prevent unintentional switch activation. If the
LED in the switch begins to blink during normal
operation, when the switch has not been acti-
vated, this indicates an error condition. Bring the
vehicle to an authorized Freightliner service fa-
cility as soon as possible.
All-Wheel-Drive Controls,
Optional
All-wheel-drive (AWD) allows the driver to direct
driveline power to all four axles, front and rear. Two
switches are used to control AWD: an AWD operation
switch used to activate all-wheel-drive, and an AWD
range switch used to select the high or low range.
AWD controls are not multiplexed.
Fig. 4.26, Axle Shift Switch
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