Black plate (46,1)
Chevrolet/GMC Duramax Diesel Supplement (GMNA Localizing-U.S./Canada-
7132827) - 2015 - CRC - 6/5/14
9-46
Driving and Operating
remote controls. The in-cab controls
are enabled as the factory preset.
The remote controls are disabled.
This factory preset configuration can
also be reprogrammed to enable the
remote controls, and disable the
in-cab PTO controls. See your
dealer for more information.
For in-cab PTO mode, the engine
speed is initially set to a stand-by
engine speed (900 rpm) by pressing
the PTO in-cab switch.
For remote PTO mode, with the
engine off, press and release the
PTO remote arm switch and within
5 seconds press and release the
PTO remote start/shutdown switch.
The engine speed is initially set to a
stand-by engine speed (900 rpm).
The stand-by engine speed can be
set to a higher speed by a service
technician.
Choose one of two factory presets
by pressing the SET
–
(speed 1) or
+RES (speed 2) switches, or PTO
remote SET switch. Speed 1 and
Speed 2 are programmable by a
service technician from base engine
idle rpm to max PTO operation
speed (3100 rpm).
.
Speed 1: Pressing the
−
/SET
position of the PTO switch
results in a preset speed of
1200 rpm.
.
Speed 2: Pressing the +/RES
position of the PTO switch
results in a preset speed of
1900 rpm.
Pressing and releasing the PTO
in-cab switch will return the engine
speed back to normal idle. The PTO
load relay is also disengaged. IN the
remote mode, pressing and
releasing the PTO remote start/
shutdown switch will disengage the
load and shut down the engine.
Maximum PTO Operating Speed:
To protect the PTO from
over-speed, the PTO system will
disengage when the engine speed
exceeds 3100 rpm. The factory
preset maximum PTO operating
speed is 2100 rpm. This can be
reprogrammed by a service
technician.
Variable PTO Mode
In this mode, the vehicle can be
programmed for stationary or mobile
operation.
The variable PTO mode controls
engine speed, and PTO load
engagement is selected by either
the PTO in-cab or remote switches.
Engine speed selection is variable
between base engine idle speed
and a maximum of 3100 rpm
(factory setting 2100 rpm).
In the mobile PTO mode, the
vehicle will operate at a vehicle
speed resulting from the current
PTO engine speed request and
current transmission gear range
selected.
Vehicle speed stability is greatly
improved by operating the
transmission in manual mode
because upshifts are limited. Mobile
PTO is only available in M1, M2,
