Engine Fan Switch, Optional; Transmission Controls - freightliner BUSINESS CLASS M2 Driver Manual

Controls
the ENG BRK legend is backlit in green when the
panel lights are on.
Exhaust Brake Switch, Optional
The optional exhaust brake is controlled by a dash-
mounted rocker switch to help slow the vehicle when
the accelerator is released. See
heading "Exhaust Braking System, Optional" for addi-
tional information.
To turn the exhaust brake on, press on the upper
part of the rocker (at the light inside the switch). The
exhaust brake turns off automatically. See
or Fig. 4.20.
11/28/2001
Fig. 4.19, Exhaust Brake Switch
03/31/2009
Fig. 4.20, Exhaust Brake Switch
When the exhaust brake switch is on, an amber LED
illuminates inside the switch. When the panel lights
are on, the EXHST BRK legend is backlit in green.
4.9
Chapter 7 under the
Fig. 4.19
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Engine Fan Switch, Optional

The engine cooling fan can be turned on by the en-
gine fan switch (ENG FAN legend). The fan will con-
tinue to operate for a set amount of time and then
turn off unless the coolant temperature is high
enough to continue the fan operation.
To turn the engine fan on, press on the upper part of
the rocker (at the fan icon). See
When the engine fan is running, the fan blade icon is
backlit in amber. When the panel lights are on, the
ENG FAN legend is backlit in green.
01/04/2011
Fig. 4.21, Engine Fan Switch

Transmission Controls

If so equipped, the transmission range control valve
and splitter valve are attached to the gearshift knob.
Transmission shift pattern labels are located inside
the cab. See Chapter 8
operating instructions.
On vehicles with standard Allison On-Highway Series
automatic transmission, the shift selector is lever-
activated. The display mounted on the steering col-
umn provides four forward ranges and one reverse
range. See Fig. 4.22.
When the transmission is in D (drive), the vehicle will
operate in the overdrive (5th) gear. To shift down into
the direct drive (4th) gear, use the overdrive lockout
switch (O/D legend). See
will shift into 4th gear and remain in that gear unless
a range inhibitor is active, such as engine overspeed.
See Chapter 8 for more information about range
inhibitors.
To shift to fourth gear, press on the upper part of the
rocker (at the LED). The LED will come on and stay
Fig. 4.21.
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for complete transmission
Fig. 4.23. The transmission