Controls/Features
Forward Rear Tandem Axle Differential Lock – DIF FR
AXLE LOCK
This switch, when set to LOCK, engages the forward
rear locking differential for improved traction on poor
surfaces (only if vehicle is below maximum differential
lock engagement speed of 25 mph (40 km).
Rear Rear Tandem Axle Differential Lock – DIF RR
AXLE LOCK
This switch, when set to LOCK, engages the rear
rear locking differential for improved traction on poor
surfaces (only if vehicle is below maximum differential
lock engagement speed of 25 mph (40 km).
Front Axle Differential Lock – FRONT AXLE/ON
Engages Front Axle for 4X4 operation.
Transfer Case – XFER HI/XFER LOW
Selects Transfer Case high or low gear ratio.
AIR ASSIST – (OFF) ON
Provides inflation or deflation of auxiliary air bag.
Engine Shutdown Override – ENG OVRD/ON
This momentary switch, when pushed to the ON
position, will allow the vehicle to be restarted in the
event of an automatic engine shutdown.
AC Power Enable – ON 120V AC
This switch, when set to the ON position, will provide
AC output from the Power Pack 3 inverter.
WINTER/ENGINE INTAKE
Used to change engine intake air from “outside air” to
engine compartment air.
PARKD REGEN – ON
DPF regeneration activation when parked switch is
used for engine after-treatment. Manually initiates DPF
regeneration.
INHIBT REGEN – ON
The Regeneration Inhibit switch is used to prevent
the Active Regeneration or Parked Regeneration
processes.
ENAB/DATA LOG
When enabled, allows the driver to log the last five
seconds of data group’s operational parameter values
into ECM memory.
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