Navistar CV 2019 Series Quick setup guide

Navistar Electrical Systems CV
Integration Guide - Jay E.
Bissontz [Digital Watermark]
Page 1 of 84 Revision Date: 9/12/2019
Navistar Electrical Systems CV Vocational Series Integration Guide
Copyright Navistar Corporation 2019 All Rights Reserved

Navistar Electrical Systems CV
Integration Guide
Page 2 of 84 Revision Date: 9/12/2019
Table of Contents
1. Revision Summary Table....................................................................................................................................... 3
2. Forward: ................................................................................................................................................................. 3
3. Vehicle Architectures: ........................................................................................................................................... 5
3.1. Multiplexing Architecture:............................................................................................................................ 5
3.2. Power Take Off (PTO) & Engine Speed Controls (Sales Feature Code 12WGG)........................................ 6
3.3. Power Take-Off (PTO) - Quick Start Reference........................................................................................... 6
3.4. Factory PTO Settings.................................................................................................................................. 12
3.5. Primary PTO Operating Modes................................................................................................................... 15
3.6. Preset PTO Operating Modes and Programming........................................................................................ 16
3.6.1. Preset PTO - In-cab Operation: Enable Conditions [factory default programming]................................... 16
3.6.2. Preset PTO - Remote Operation: Enable Conditions [requires programming with Navistar CV
vehicle service tool and installation of an appropriate remote switch panel]........................................ 17
3.6.3. Preset PTO - Remote Operation with In-Cab Engage: Enable Conditions [requires programming
with Navistar CV vehicle service tool and installation of an appropriate remote switch panel]............. 18
3.6.4. Diesel Particulate Filter [DPF] Cleaning during Stationary PTO Operation................................................ 19
3.7. Variable PTO Operating Modes and Programming...................................................................................... 20
3.7.1. Variable PTO - In-cab operation: Enable Conditions - [requires programming with Navistar CV
vehicle Service tool]........................................................................................................................... 20
3.7.2. Variable PTO - Remote Operation: Enable Conditions - [requires programming with Navistar CV
vehicle service tool and appropriate remote switch panel provided by Truck Equipment
Manufacture (TEM)]........................................................................................................................... 20
3.7.3. Variable PTO - Remote Operation with In-Cab Engage: Enable conditions [requires programming
with Navistar CV vehicle service tool and appropriate remote switch panel provided by Truck
Equipment Manufacture (TEM)].......................................................................................................... 22
3.8. Diesel Particulate Filter [DPF] Cleaning during Stationary PTO Operation .................................................. 23
3.9. Mobile PTO Operating Modes and Programming........................................................................................ 24
3.9.1. Mobile PTO - in-cab operation only: Enable Conditions - [requires programming with Navistar CV
vehicle service tool]............................................................................................................................ 24
3.10. OSIM PTO (Operator Selectable In-Cab Mode) [New feature for 2017].................................................... 25
3.10.1. OSIM PTO - Preset [Stationary] Operation:Enable Conditions............................................................... 25
3.10.2. OSIM PTO - Variable[Stationary] Operation: Enable Conditions........................................................... 25
3.10.3. OSIM PTO - Mobile Operation: Enable Conditions................................................................................ 26
3.11. PTO System Disengage Conditions.......................................................................................................... 27
3.11.1. Stationary Modes [preset or variable] - in-cab control............................................................................. 27
3.11.2. Stationary Modes [preset or variable] - remote control [with or without in-cab engage]........................... 27
3.11.3. Mobile Mode .......................................................................................................................................... 29
3.12. Prolonged or Extended PTO Operation..................................................................................................... 30
3.12.1. Diesel Particulate Filter [DPF] Cleaning during Stationary PTO Operation.............................................. 30
3.13. PTO Operational Speed Control................................................................................................................ 31
3.13.1. [Variable] PTO operational speed control provides the following functions: ............................................ 31
3.13.2. In-cab Cruise Res + Switch (or Remote PTO Tap Up switch)................................................................. 31
3.14. Driver Information Center (DIC) Warnings Messages................................................................................ 36
3.15. Appendix: PTO, Remote Engine Speed Control, and General Safety Recommendations.......................... 36
4. Fast Idle Control –Engine Speed Control L/PTO................................................................................................. 42
4.1. To obtain Fast Idle capability you must order the following options:............................................................. 42
Required Initial Conditions................................................................................................................................. 42
4.2. Enable (Turn ON) Fast Idle......................................................................................................................... 43
4.3. Preset Fast Idle........................................................................................................................................... 43
4.4. Adding Fast Idle (UF3)................................................................................................................................ 43
5. Truck Equipment Manufacture (TEM) Auxiliary Switches................................................................................... 43
5.1. Switches/Relay outputs:.............................................................................................................................. 44
5.2. Wiring Schematic........................................................................................................................................ 51
6. Auxiliary Battery Connections.............................................................................................................................. 51
6.1. Repair/Recommendation:............................................................................................................................ 51
6.2. Additional Information:................................................................................................................................. 52
6.2.1. Positive Cable Recommendation.............................................................................................................. 52
7. Rearview Camera Installation ............................................................................................................................... 55
7.1. Mounting the Camera.................................................................................................................................. 55

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7.2. Camera Installation Guidelines.................................................................................................................... 55
8. Infor –Radio Telephone/Mobile radio (Transcever) Installation and trouble shooting Guidlines.................... 57
8.1. Transceiver Location................................................................................................................................... 58
8.2. Antenna Installation..................................................................................................................................... 58
8.3. Antenna Cable Routing............................................................................................................................... 59
8.4. Antenna Tuning........................................................................................................................................... 59
8.5. Radio Wiring and Connection Locations...................................................................................................... 60
8.6. Radio Wire Routing..................................................................................................................................... 61
8.7. Troubleshooting.......................................................................................................................................... 61
9. Relocation of electrical Coponents/Devices-Best Practices/Recommendations............................................... 66
9.1. Under-hood/Vehicle: ................................................................................................................................... 67
9.2. Under-dash:................................................................................................................................................ 67
9.3. Doors:......................................................................................................................................................... 67
9.4. Under Seats:............................................................................................................................................... 67
9.5. Rear Stowage Areas:.................................................................................................................................. 67
9.6. General Recommendation: ......................................................................................................................... 68
10. Appendix - General Electrical Section:............................................................................................................... 68
10.1. Color Code System for International® Truck Wiring: ................................................................................. 68
10.2. Recommended Circuit Protection:............................................................................................................. 69
10.3. Electrical Components Commonly Used by Equipment Installers:............................................................. 70
10.4. Wire Splicing and Termination - Standard Terminals and Splices:............................................................. 70
10.5. HIGH VOLTAGE CIRCUITS (GREATER THAN 50 VOLTS) ON INTERNATIONAL TRUCKS AND
BUSES:.............................................................................................................................................. 78
1. Revision Summary Table
REVISION
DATE
SECTION
CHANGE DESCRIPTION
REASON FOR CHANGE
REVISED BY
01
9
/
1
2
/201
9
ALL
INITIAL DRAFT
INITIATION OF
DOCUMENT
J. BISSONTZ
2. Forward:
Warning -In the pages of this document are a diverse set of truck chassis system and
subsystem integration features which contain the potential for both simple and complex
operational situations and interactions when integrated in combination with a truck
chassis and truck mounted equipment. It is the responsibility of persons performing
truck chassis and, or truck mounted equipment system integration and testing to fully
understand the plurality of operational outcomes and take the appropriate as well as
necessary precautions to avoid property damage, personal injury up to and including
death when performing system integration and, or test in association with the content of
this document.
Note - In this manual, International® Truck and Engine Corporation provides
information about its different products to assist those who wish to modify these
products for individual applications. International does not recommend or approve any
firm nor make any judgements on the quality of the work performed by a particular firm.
Individuals who use the services of a Body Builder must satisfy themselves as to the
quality of the work.

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The party installing a body, a fifth wheel, any other equipment, or making any
modifications to complete the vehicle for delivery and make it road-ready is responsible
to see that the completed vehicle complies with all applicable certification procedures
and safety standards, as may be set forth in Federal, State, and local statutes, rules and
regulations.
Specifications, descriptions and illustrative material in this literature are as accurate as
known at time of publication but are subject to change without notice. Illustrations are
not always to scale and may include optional equipment and accessories but may not
include all standard equipment.
Safety Information:
IMPORTANT - Read the following before starting the service procedure.
You must follow your company safety procedures when you service or repair
equipment. Be sure to understand all procedures and instructions before you begin
work on the unit. Some procedures require the use of special tools for safe and correct
service. Failure to use these special tools when required can cause injury to service
personnel or damage to vehicle components.
DISCLAIMER: INTERNATIONAL DOES NOT TAKE ANY RESPONSIBILITY FOR
CUSTOMER OR BODY BUILDER WIRING.
NOTE - After-market installed wiring for engine speed control must comply with the
following guidelines:
1. Sealed switches and connectors must be used for switches and connections that are
exposed to the weather or to salt spray emanating from the vehicle's tires.
2. Route and clip wiring to minimize chafing and exposure to weather. Use conduit,
loom, and/or tape to achieve this.
3. Fuse all power leads as close to the power source as possible. Remember fuses
protect the wiring - size fuses accordingly.
4. All ground connections that will be made to the frame or body must be connected to
clean bare metal. Remove all dirt, paint, grease and rust that would insulate the terminal
from ground. After connecting the ground, seal the connection with a good quality
grease or surface sealant to protect the connection from corrosion.
5. Spliced wires should be twisted together and soldered. Use a heat shrink tube with a
meltable inner wall to seal the connection. Do not expose splices to the weather.

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WARNING - To avoid serious personal injury, possible death, or damage to the vehicle,
make sure the transmission is in neutral, parking brake is set, and the wheels are
blocked before undertaking service procedures. In addition, turn off the engine when
you leave the vehicle. Never leave the vehicle unattended with the engine running.
WARNING - To avoid personal injury, possible death, or damage to the vehicle when
adding electrical features, disconnect batteries. Reconnect batteries when installation is
complete.
Whenever disconnecting battery terminals; always disconnect the ground
terminal first. When reconnecting, always connect the ground terminal last.
To prevent injury to the eyes, face, limbs and body, it is imperative that lighted
materials, flames or sparks be kept away from the vent openings of the battery.
The gas mixture in the battery cells, which escapes through the vents, could
ignite and/or cause an explosion. This is particularly true when jumper cables are
being used.
In addition, inhaling of gas produced by the normal operation of the battery could
result in partial or permanent damage to the respiratory system.
Always wear eye protection when working around batteries. Do not attempt to
jump-start a vehicle having a frozen battery because the battery may explode. If a
frozen battery is suspected, examine all fill vents on the battery. If ice can be
seen, do not attempt to start with jumper cables as long as the battery remains
frozen. Thaw out the battery and recharge.
Do not check battery condition by shorting (flashing) across terminals.
Failure to observe these instructions could result in personal injury and/or
damage to the vehicle.
Battery cable terminals must be clean and tight. Use hot water and common baking
soda for removing terminal corrosion and for cleaning the top of the battery. Brighten
the contact surface with steel wool, apply a light coat of lubricant sealing grease such as
Fleetrite ® 472141-C1 or equivalent and reassemble. Be sure the terminals are
clamped tightly and that the battery is clamped securely in place.
When working around the terminals and battery, use extra care to avoid shorting. A
good practice is to insulate pliers and screwdrivers.
3. Vehicle Architectures:
3.1. Multiplexing Architecture:
Unlike the electrical systems on previous models, which utilized point-to-point wiring for
all input signals and output loads, this system uses multiplex technology to provide
control and communication between major functional areas of the vehicle. Multiplexing
simply means, communicating multiple pieces of information via a single twisted pair of
wires (called the data link) without requiring a wire for each piece of information. This

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information could be gauge information such as engine oil pressure, or switch
information that controls vehicle functions such as headlamps.
The electrical system relies on a collection of electronic circuit modules and software to
perform vehicle functions instead of implementing similar features using complex wire
harness designs with electromechanical relays and switches. These electronic module
components are connected together by data links. The data links can be thought of as
computer networks that allow the electronic components on the vehicle to communicate
with one another.
The concept of multiplexing is not new since data links for communicating between
engine controllers, the instrument cluster and the diagnostic connector have been used
for several years.
The goal of multiplexing is to reduce cab harness wiring and to simplify circuits. This is
accomplished by using a low current data link for communicating between cab switches,
the Body Controller and the Instrument Cluster. Other data links in the vehicle allow
other electrical controllers, the BC and the Instrument Cluster to communicate with each
other.
3.2. Power Take Off (PTO) & Engine Speed Controls (Sales Feature Code 12WGG)
Feature Description: Engine speed control for electronicly controlled Power Take Off
(PTO) device, includes On/Off switch mounted on Dash, with steering wheel mounted
engine speed control button.
3.3. Power Take-Off (PTO) - Quick Start Reference
The PTO is an Truck Equipment Manufacture (TEM) integrated system that allows the
user to create an auxiliary power source for running add-on equipment, such as salt
spreaders, dump beds, lifts, winches, and lift buckets etc. The PTO system controls
engine speed to values higher than normal base idle, PTO load relay engagement, and
remote starting and shutdown of the engine.
PTO Components
The OEM PTO components consist of:
The transmission [internal] PTO gear –rotates with the torque converter
The in-cab PTO switch and cruise control SET and RES switches
The PTO telltale indicator
The Driver Information Center (DIC)
The Radio and Navigation Screen (HMI)
The Power Take Off Module (PTOM)
The remote PTO Truck Equipment Manufacture (TEM) connector [X191]

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Note: The interface connector [X191] is located at the rear of the cab near the RH
frame rail and comes with a cap which is the mating half to the truck harness
connector. This is the connector the Truck Equipment Manufacture (TEM) will use
to wire in external electrical components such as a control relay, oil solenoid [these
two are basic to all systems] and possibly external switches to control the PTO from
outside the cab.
Figures 4.1.1 & 4.1.2: Component Mounting Locations

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Figure 4.1.3: PTOM Mounting Location

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Figure 4.1.4: Instrument Panel Layout
Table 4.1.1: Instrument Panel Layout
Component Locations and Descriptions
(1) Trailer Brake Control Switch (9) Accessory Power Receptacle –110V AC
(KI4)
(2) Speaker –Left Instrument Panel (UQ3) (10) Accessory Power Receptacle –
Instrument Panel 2
(3) Instrument Cluster (11) Accessory Power Receptacle –
Instrument Panel 1
(4) Ambient Light/Sunload Sensor (12) USB Receptacle
(5) Info Display Module (13) Seat Heating and Cooling Switch –Driver
(6) Seat Heating and Cooling Switch –
Passenger
(14) Data Link Connector
(7) Speaker –Right Instrument Panel
(UQ3)
(15) Headlamp Switch
(8) Switches –PTO switch location (16) Transfer Case Shift Control Switch

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Figure 4.1.5: Steering Wheel Mounted Controls
Figure 4.1.6: X191 Engine Harness to Power Take-Off Jumper Harness
Connector Part Information [truck side]
Harness Type: Engine
OEM Connector: 15326863
Service Connector: 6040235C1
Description: 16-Way F 150 GT Series,
Sealed (BK)
Connector Part Information [Truck
Equipment Manufacture (TEM) Cap]
Harness Type: Power Take-Off
Jumper
OEM Connector: 15326868
Service Connector: 6040230C1
Description: 16-Way M 150 Series,
Sealed (BK)

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Table 4.1.2: Terminal Information Terminal Information
Terminated Lead Service Terminal Tray
Core Crimp
Insulation Crimp
13575412 3535303C1 8 2 1
13575298 3535303C1 8 E 1
13576363 3535305C1 19 E 4
Table 4.1.3: Circuit Information
Circuit Information
Pin Color Circuit Terminal
Type ID Function
A BN/WH 6085 I Power Take Off Remote Engine
Start Switch Signal
B BN 6381 I Power Take Off Relay Engage Signal
Relay Coil High Side pin [86]
C - - - Not Occupied
D BK 550 I
Ground
solenoid coil ground
[high side to relay NO contact pin
87]
E-F - - - Not Occupied
G YE 2522 I Power Take Off Status Signal
H VT/D-BU 2562 II Power Take Off Relay Coil
Control
Relay Coil low side pin [85]
J WH/L-GN 6142 II Power Take Off Engine
Shutdown Signal
K RD/VT 2640 I Battery Positive Voltage
L-M - - - Not Occupied

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N D-BU/GY 6089 II Power Take Off Remote Switch
Set Signal (1)
R VT/WH 239 II Run/Crank Ignition 1 Voltage Power for Relay common contact
pin [30]
3.4. Factory PTO Settings
The PTO system is programmed in the plant for a basic 3 speed idle up [Stationary
Preset] mode with the relay control circuit enabled and ready to close a control relay.
[The relay is not included and must be added by the Truck Equipment Manufacture
(TEM).] For most customers the only electrical connections that are required are a
control relay and an oil solenoid. The system is ready to go. [Older systems did not
have the relay driver turned on so they would not engage the PTO until
reprogrammed at a dealer. That has been corrected.]
The three factory speeds are:
1. 900 RPM –occurs with press and release of the PTO switch
2. 1200 RPM –occurs with press and release of the Cruise SET switch [if
PTO is ON]
3. 1900 RPM –occurs with press and release of the Cruise Resume Switch
[if PTO is ON]
See schematic below. The components in the grey shaded box are what must be
connected to X191 for basic in cab operation [Stationary Preset].
IMPORTANT: On a new unit before anything is connected, start the truck in park
with the park brake set and the Cruise Control Switch is OFF. Press and release
the PTO in-cab Switch. You should be able to achieve the 3-speed operation
described above. If not, have the dealer fix it before you proceed! When proper
idle up operation is confirmed THEN connect your components.

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Figure 4.2.1: Schematic for basic ‘inside’ PTO operation using control relay and oil solenoid as
well as optional outside ‘remote’ operation [start/stop, tap up/down]
NOTE: The PTO connector X191 has a cap installed at the assembly plant with a
jumper between pins A and J. The cap is a useable mating connector and it could
be rewired as shown above. To avoid setting internal trouble codes the continuity
between connector cavities A and J must be constantly maintained except during kill
switch actuation for MY2015-17. MY2018 and beyond the jumper is only required
for remote operation if arm and kill switches are not configured.

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Figure 4.2.2: Full System Schematic [shows with all possible external connections]
NOTES:
1. Cavity N control signal must be implemented with a switch OR a
potentiometer, not both.
2. For MY2015-17 continuity between pins A & J is monitored, must be
maintained. It can be interrupted only during the actuation of the kill
switch. Continuous loss of continuity between pins A and J will result in
setting system trouble codes.
3. For MY2018 and beyond the A to J jumper is not required except for
remote modes where the ‘arm’ and ‘kill’ switches are not configured.

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3.5. Primary PTO Operating Modes
PTO modes of operation include the following:
Preset [Stationary]
In-cab control standard. Remote control available.
New for 2017 –in cab engage with remote control
Variable [Stationary]
In-cab control standard. Remote control available.
New for 2017 –in cab engage with remote control
Mobile
In-cab control only
OSIM (Operator Selectable In-Cab Mode) [Stationary or Mobile] is
new for 2017,
requires ‘pairing’ and then one of the two ‘paired’ modes can be
selected each key cycle.
Notes:
Factory default programming enables in-cab controls.
A Navistar CV vehicle service tool can reprogram the system to allow for
remote control. In-cab controls can be left active [in-cab engage with
remote control] or disabled. OSIM can be enabled for dual
stationary/mobile mode pairing.
All PTO modes provide for engine rpm control and PTO load relay
control [engage/disengage].
All PTO modes provide for safety interlocks for PTO load
disengagement.
Remote PTO modes provide for both in-cab and remote engine starting,
and shutdown. Emergency vehicle provisions for PTO are not
compatible with remote mode.
All Stationary PTO modes provide for engine shutdown due to critical
engine conditions, as well as a timed engine shutdown feature.
However, when ordering any Navistar Emergency Vehicle vocational
sales applications, Automatic Engine Shutdown is disabled.
Emergency Vehicle provisions for PTO are limited to the disabling
the following Automatic Engine Shutdown conditions
a) Low Fuel
b) Engine Coolant Hot
c) Transmission Fluid Hot
d) Low Engine Oil
e) Low Engine Oil Pressure
f) Diesel Particulate Filter Regeneration Warning
Note: Engine shutdown, based on critical engine or PTO system fault conditions
could be disabled using the service tool for non-emargency application. “PTO

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Engine Shudown” Parameter needs to be programmed to “Disable” using service
tool.
For remote pendant applications the ‘Remote Pendant Enable Switch’
must be in the open position when connecting or disconnecting the
pendant cable.
3.6. Preset PTO Operating Modes and Programming
3.6.1. Preset PTO - In-cab Operation: Enable Conditions [factory default
programming]
To Enable PTO the following conditions must be satisfied:
1. Engine must be running.
2. The vehicle cannot be moving.
3. The parking brake must be set.
4. The shift lever must be in PARK [P].
5. The brake pedal must not be depressed.
6. Cruise Control must be OFF.
7. Press and release the PTO In-cab switch, located below the center
console. The PTO telltale will blink rapidly until the PTO load relay
becomes engaged (Ref. Note 3 below). The telltale will then be steady.
The engine will advance to the PTO Standby speed.
8. After PTO Standby speed is achieved the Cruise Control SET- and
RES+ switches can be used to accomplish the Set 1 or Set 2 PTO
engine speeds. Note: The accelerator pedal is disabled and cannot be
used to override the PTO present speeds below.
Table 4.4.1: Factor Default PTO engine speed Values
Factory Default PTO Engine Speeds
Standby 900 rpm
Set 1 (SET-) 1200 rpm
Set 2 (RES+) 1900 rpm
Note: On a new vehicle the PTO function [3 speed idle up] should be confirmed
before any wiring modifications are done. See your Navistar dealer if the default
presets are not functioning properly.

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1. The PTO Control setting is default programmed to Interior PTO Mode.
Remote switch inputs are disabled.
2. Since a PTO load relay is not yet wired in the system, the PTO Telltale
does not initially truly reflect the status of the PTO load. The PTO load
relay output is enabled as a factory default.
3. When the PTO Telltale is either blinking or on solid, the PTO Relay
output will be activated.
3.6.2. Preset PTO - Remote Operation: Enable Conditions [requires programming with
Navistar CV vehicle service tool and installation of an appropriate remote switch
panel].
The panel must be provided by the Truck Equipment Manufacture (TEM). Please
refer to the schematics above which show how Truck Equipment Manufacture
(TEM) supplied equipment is to be wired.
1. Cruise Control must be OFF (confirm this is OFF before powering down
the vehicle with the Ignition key).
2. The shift lever must be in PARK [P].
3. The park brake must be set and the hood must be closed.
4. The engine must be stopped and the Ignition key removed. Vehicle can
be locked if desired.
5. From the Remote Switch Panel close and open the PTO Remote Arm
Switch.
6. Within 5 seconds open and close the PTO Remote Engine
Start/Shutdown switch
7. The vehicle horn will chirp 3 times, and then engine starting will
automatically be initiated. The PTO system will then elevate engine rpm
to PTO standby speed and engage the PTO load relay.
8. The PTO Remote Set switch can now be used to accomplish the PTO
Set 1 and Set 2 Engine speeds. Note: The accelerator pedal is disabled
when remote PTO operation is selected.
Notes:
1. The PTO load relay engages immediately when the PTO operation is
initiated by the switch input. This produces a soft engagement because
the transmission torque converter is unlocked. The torque converter will
lock upon reaching stable PTO Standby Speed [default = 900 rpm] so
maximum power is available.
2. The first elevated engine speed –PTO Standby Speed is not intended
as a working speed but as a verification that the system is active and
ready to go to a working speed. PTO Standby Speed can be modified to
a ‘working speed’ with a Navistar CV vehicle service tool. The upper
limit for PTO Standby Speed is 1500 rpm.

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3. The remote switches and relay connections are made at the PTO Truck
Equipment Manufacture (TEM) Connector located on the chassis frame
behind the cab.
4. The PTO Control setting on the Service Tool must be programed to
“Remote PTO Mode Switch” before the remote switches can be used.
5. The PTO relay is programed to be enabled in the factory default settings.
Warning:
Engine exhaust contains Carbon Monoxide (CO) which cannot be seen or smelled.
Exposure to CO can cause unconsciousness or even death. Never operate PTO in
an enclosed area such as a garage or building that has no fresh air ventilation. See
“Engine Exhaust” in the Vehicle Owner Manual.
Warning:
If the key is in the ignition during Remote PTO operation, the vehicle can be shifted
out of Park by an operator. Even though PTO will be disengaged, depending on
PTO Truck Equipment Manufacture (TEM) application, personal injury or property
damage may result from vehicle movement. Always remove key from the ignition
before operating Remote PTO.
3.6.3. Preset PTO - Remote Operation with In-Cab Engage: Enable Conditions
[requires programming with Navistar CV vehicle service tool and installation of an
appropriate remote switch panel].
Starting Remote Operation from cab.
1. With the engine running shift the transmission into P (Park).
2. Release the brake pedal and set the parking brake.
3. Assure the cruise control is OFF and the hood is closed.
4. Press and release the In-Cab PTO Switch.
5. The horn will chirp, the PTO load relay will engage, and the engine speed
will advance to PTO Standby Speed.
6. The operator may now exit the vehicle. Doors can be locked with key fob
[if desired/available].
7. The PTO Remote Set switch can now be used to accomplish the PTO Set
1 and Set 2 Engine speeds. The accelerator pedal is disabled when
Remote PTO operation is selected.
PTO Remote operation can be ended by pressing In-Cab PTO Switch, releasing the
parking brake, depressing the brake pedal or shifting the transmission out of P
(Park). The PTO load relay will be disengaged, and Engine speed will decline to idle
speed.

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Warning:
While operating your vehicle in stationary PTO mode, the Diesel Particulate Filter
(DPF) will continue to filter the exhaust and accumulate soot. The engine control
system, depending on the speed and load being applied by the PTO, may not be
able to generate enough energy or adequate heat needed to clean or regenerate
the DPF. Continued operation under conditions that do not allow effective
regeneration or cleaning will eventually plug the DPF and result in reduced power.
The ENGINE POWER IS REDUCED Driver Information Center (DIC) message and
Malfunction Indicator Lamp will be displayed, and dealer/retailer service will be
required to return your vehicle to normal, full power operation. To prevent this from
occurring, frequently monitor your vehicle during PTO operation, paying particular
attention to the CLEAN EXHAUST FILTER SEE OWNER MANUAL NOW DIC
warning message or any horn chips if operating PTO remotely. If the DIC message
[or horn chirp] is presented during PTO operation, see OWNER MANUAL Diesel
Particulate Filter for information on how to clean or regenerate the DPF.
3.6.4. Diesel Particulate Filter [DPF] Cleaning during Stationary PTO Operation
If the DPF becomes sufficiently loaded with soot during a PTO session the system
will issue a DIC warning message and horn chirps as notification to the operator. If
the operator is outside the vehicle [remote operation] he must return to the cab and,
if running in ‘key out’ mode, insert and rotate the key to the ‘run’ position to respond
to the system messages. [Messages are not displayed unless the key is in the ‘run’
position.]
Notes:
Manual DPF [cleaning] regeneration can be initiated during a PTO idle up
session.
It is strongly recommended that the exhaust filter be cleaned before
continuous PTO usage if possible.
If a manual regen is initiated during the PTO session the PTOM will retain
control of the engine speed and the selected speed will not change as the
regen event initiates.
Low PTO engine speeds and light loading will cause regeneration to take
longer.
To initiate a manual DPF regeneration, see “Manual Regeneration of
Diesel Particulate Filter” under Diesel Particulate Filter in the Duramax
Diesel Supplement pamphlet in the glove box. See UI Bulletin xxx
DPF Regen for more detail.
Warning:
The exhaust system and exhaust gases get very hot during a manual regeneration.
Things that burn could touch hot exhaust parts under the vehicle and may catch fire.
You or others could be burned. Do not leave the vehicle unattended during a manual

Navistar Electrical Systems CV
Integration Guide
Page 20 of 84 Revision Date: 9/12/2019
regeneration. If operating from outside the vehicle maintain a safe personal distance
away from the hot exhaust or you could be burned.
3.7. Variable PTO Operating Modes and Programming
3.7.1. Variable PTO - In-cab operation: Enable Conditions - [requires programming
with Navistar CV vehicle Service tool]
1. With the engine running shift the transmission to P [PARK].
2. Release the brake pedal and set the parking brake.
3. Assure the cruise control is OFF and the hood is closed.
4. Press and release the PTO In-cab switch. The PTO telltale will blink
rapidly until the PTO load becomes engaged. The telltale will then be
steady. The engine will advance to the PTO Standby speed.
5. After PTO Standby speed is achieved, the Cruise Control Set - and Res
+ switches can be used to tap up and tap down the engine speed.
Notes:
1. Factory setting for the tap step is 100 rpm and the setting for the ramp
rate is 150 rpm/sec. The Navistar CV vehicle service tool can enable the
capability to change the default value for tap step via the Radio
Customization menu. The default values for both tap step and for ramp
rate can be changed with a Navistar CV vehicle service tool.]
2. The accelerator pedal is disabled and cannot be used to control PTO
engine speed.
3. [Stationary] Variable PTO operation can be ended by pressing In-Cab
PTO Switch, releasing the parking brake, depressing the brake pedal or
shifting the transmission out of P (Park). The PTO load relay will
bedisengaged and Engine speed will decline to idle speed.
3.7.2. Variable PTO - Remote Operation: Enable Conditions - [requires
programming with Navistar CV vehicle service tool and appropriate remote
switch panel provided by Truck Equipment Manufacture (TEM)]
1. Shift the transmission to P [Park] and set the parking brake.
2. Assure the Cruise Control is OFF, turn the key off and remove it.
3. The operator may now exit and lock vehicle.
4. From the Remote Switch Panel close and open the PTO Remote Arm
Switch.
5. Within 5 seconds open and close the PTO Remote Engine
Start/Shutdown switch
6. The vehicle horn will chirp 3 times, and then engine starting will
automatically be initiated. The PTO system will then elevate engine rpm
to PTO Standby speed and engage the PTO load relay.