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Section 1 SYSTEM DESCRIPTION
The Auxiliary Idle Control Module, also called Auxiliary Powertrain Control Module (APCM), is for use in Light
Trucks equipped with 7.3L DIT Diesel engines. Each kit includes an Auxiliary Idle Control module, wiring harness,
mounting bracket and hardware, operator's card, and this instruction booklet.
The APCM can be used to:
•• Maintain battery charge
•• Elevate engine speed for increased power output at idle
•• Power up an auxiliary PTO with optional upper and lower speed limits
•• Control engine speed from a remote location on the vehicle
• Elevate idle speed or maintain charge automatically, without additional driver input
Section 1.1 KEY AND DISPLAY DESCRIPTION
CHARGE
PROTECT POWER
RPM
CONTROL
PTO
CONTROL
CHARGE PROTECTION
Charge Protection is used for
maintaining battery charge.
In Charge Protection mode, the
battery voltage is monitored and
the engine idle speed is increased
so the battery charge is maintained
as required.
Charge Protection can be activated
from in-cab, from a remote
location, and can be programmed
to activate automatically on engine
start-up.
RPM Memory keys and
Manual RPM Adjustment
Arrows
Each arrow key contains a preset
speed allowing four (4)
programmable RPM settings.
The arrow keys are also used to
manually increase or decrease
the engine speed at a faster or
slower rate.
RPM CONTROL
RPM Control is used for elevating
idle speed.
RPM Control mode can be activated
from in-cab, from a remoteremote location,
and can be programmed to activate
automatically on engine start-up.
The programmable speed presets
range from 1200 to 2500 RPM.
LCD screen displays current
engine speed or battery
voltage.
PTO CONTROL
PTO Control is used for electrically
actuating a 12V PTO solenoid.
The output is a high-side 12V DC signal to
drive an auxiliary load, such as a PTO or clutch
solenoid.
LIMITS FOR PTO CONTROL
An overspeed limit can be
programmed to disable PTO
operation when the upper limit is
exceeded.
A lower enabling limit can be
programmed which allows
actuation of the PTO only when
the engine speed is below the
lower limit, for maximum clutch
engagement speed.
LINK PTO AND RPM CONTROL
For actuating PTO system and elevating
engine speed in one operator step.
CUSTOM REMOTE
For adjusting engine speed from a remote location
on the vehicle. The speed can be adjusted
remotely from 1200 to 2500 RPM. Connect
potentiometer to supplied inputs and program
module as required.
