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ServiceMaxx J1708
Product Number SM-1708

ServiceMaxx™ is a diagnostic and programming service tool for Navistar® Engines. A fully-featured PC application, ServiceMaxx is designed to meet the wide range of diagnostic challenges when servicing a mixed truck fleet. Coverage includes legacy J1708 electronic engine systems, allowing you to run special tests, change parameters, view and graph engine data.

Basic Features
  • Read Fault and clear diagnostic fault codes
  • View, graph and save engine data
Advanced Features
  • Diagnostic Tests
    • KOEO – Key On Engine Off
    • KOER – Key On Engine Running
    • KOEO – Injector Buzz Test
    • KOER – Injector Contribution Test
    • Cylinder Cutout Test (EPA 04′ and newer)
    • Injector Disable Tests (EPA 04′ and newer)
  • Display and change configurable Parameters
    • Crank Inhibit
    • Fan Control
    • Idle Shutdown Timer
    • Warm-up Device
    • Warning and Protection System
    • Hydraulic Pressure Governor
    • PTO Control
    • Radiator Shutter
    • Vehicle Speed Limit
    • Vehicle Retarder
    • Two Speed Axle
    • Traction Control
Applicable to:
Bus , Medium Duty , Heavy Duty , Severe Series , Pre 2004 530E , Pre 2004 DT466E , Pre 2004 T444E , 2004 - 2007 DT 466 , 2004 - 2007 VT 275 , 2004 - 2007 VT 365 , 9000i Series , AC / UC & HT / TC Commercial Bus , AE, BE, CE & Integrated Bus , CityStar / CF Series , CXT, MXT , DuraStar , EStar , Global FE Bus , Global SFC Bus , LoadStar , LoneStar , PayStar , ProStar , RE Integrated Bus , TerraStar , TranStar , WorkHorse , WorkStar , 12 Engine Systems , Engine Software
List of Documents
ServiceMaxx Sell Sheet (en)
ServiceMaxx User's Guide (en)

Software Installation

  1. Click here to download the software.
  2. Open the downloaded executable file.
  3. Click Next.
  4. Read through the License Agreement. When finished, click I Agree to proceed with installation.
  5. When installation is complete, the final page of the wizard is displayed. Click Finish.
  6. Right click on the Desktop Icon
  7. Open file location
  8. Locate application file and right click
  9. Run as administrator
  10. Enter the product key obtained for this computer and then click OK.
    • If the key was not entered correctly (or there is some other problem), an error message will be displayed. Refer to Installation Error Messages for more information. Resolve the issue indicated before proceeding.
  11. Screen will appear asking if you are a new or existing user.

New Users

  1. The Registration window appears. Fill in the user’s information. Required fields are indicated by an asterisk (*). Once registration is completed successfully, Click OK. An email will be sent to the address provided on the registration form. Follow the instructions provided in this email to complete the registration process. When finished, click OK in the window shown below.

IMPORTANT: You MUST change your password by following the instructions provided in the email before proceeding. The default password cannot be used to log into the application. Passwords can be reset at


Existing Users

IMPORTANT: Please check to ensure your password has not expired prior to authenticating the software.

  1. The User Authentication window appears. Enter your username and password, then click OK.

Once you are logged in for the first time, the software will start and begin to update itself.

NOTE: The software program will not function until the user has successfully logged in at least once while connected to the network. The user may need to consult with the technical computer support staff if the program cannot connect to the Navistar site.

Any product key in the Navistar Service Software suite can generate five CYY user IDs. Only the administrator of the product key, that is the first installer of the key, can create the additional user ID’s from the program.


Launching Software

To launch your software, do one of the following:

  • Double click the software icon on the Windows desktop.
  • In the Windows Start Menu, select Programs > (Software Name) > (Software Name).

The User Authentication window appears. Enter your username, password and click OK.

  • Microsoft® Windows® Vista, or Windows 7
  • 1GHz Intel Core 2 Duo, AMD Athlon X2 or better
  • 2GB (32-bit) or 4GB (64-bit) of RAM
  • 300MB of available hard disk space
  • 1024 x 768 pixel monitor
  • One or more RP1210A compatible communication devices with SAE J1708
  • NOTE: Make sure to close ServiceMaxx before installing a new version
Recommended Adapters
  • NEXIQ Technologies® – USB-Link™, USB-Link™ 2
  • Dearborn Group Technologies – DPA4+, DPA5+
  • Noregon® Systems, Inc. – DLA+, DLA+ 2.0, DLA+ Wireless, DLA+ 2.0 Wireless
Communication Link Drivers
  • Navistar developed software uses standard RP1210A drivers for communication. The drivers are specific to the communications device and are not installed with Navistar developed software.
J1708 - Pre-MaxxForce Engines
ServiceMaxx J1708 is a legacy product that is offered at no cost. This product is available for public use; however it is no longer being supported by Navistar.

  • I63BX / DT 466: 3 Box I6 (1994 - 1997)
  • V83BX / T444E: 3 Box V8 (1994 - 1997)
  • i308 / DT 466: DLC I6 (1998 - 2004)
  • T444E: DLC V8 (1998 - 2004)
  • I313 / DT 466 and 570: DLCII I6 (2005 - 2006)
  • V128 / VT 365: DLCII V8 (2005 - 2006)
  • V126 / VT 275: DLCII V6 (2005 - 2006)
Product and price information are subject to change without notice.