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Natural Gas Engine Electronic Control Systems

John Deere Natural Gas engines are divided into two electronic control groups. John Deere engines with the following model numbers are classified as Woodward Control Systems: 6081HFN01, 6081HFN02, and 6081HFN03. John Deere has also introduced a John Deere Control System that is used on the 6081HFN04 engine model.

 

Distinguishing Features of the Woodward Control System

  • Engine Control Unit (ECU) has two 30-pin connectors (both black)
  • ECU is black
  • Diagnostic connector is a flat, black, 4-pin connector
  • Engine has an Ignition Control Unit mounted next to fuel metering block
  • Ignition coils use a 2-pin connector

 

Distinguishing Features of the John Deere Control System

  • Engine Control Unit (ECU) has four 30-pin connectors (two black and two white)
  • ECU is unpainted/galvanized
  • Diagnostic connector is a round, black, 9-pin connector
  • Engine does not have an Ignition Control Unit
  • Ignition coils use a 4-pin connector

 

Natural Gas Diagnostic Hardware
The diagnostic software and hardware used on the John Deere Natural Gas engines are different depending on the electronic control system. See NG Electronic Control Systems to determine the type on control system that diagnostic will occur on.

 

Hardware for Woodward Control Systems
Diagnostic cable JT07267 is needed to communicate to the engine control unit on the Woodward Control System. This cable is available through you local John Deere servicing dealer.

 

Hardware for John Deere Control Systems
Fill out the NG Hardware Request Form to gain information on ordering the cable kit to communicate to the John Deere electronic control unit.

 

Natural Gas Diagnostic Software
The diagnostic software and hardware used on the John Deere NG engines are different depending on the electronic control system. See NG Electronic Control Systems to determine the type of control system that diagnostics will occur on.

 

To request Natural Gas Diagnostic Software, please contact your nearest John Deere engine distributor.

 

Bell Power Systems, Inc.
36 Plains Road
P.O. Box 980
Essex, CT 06426
Phone: 860-767-7502
Fax: 860-767-2439
Email: ron@bellpower.com
Website: www.bellpower.com
Ron Weir

 

Western Power Products
3000 Gateway Avenue
Bakersfield, CA 93307
Phone: 661-397-9155
Fax: 611-397-9150
Email: MShaw@westernpowerproducts.net
Website: www.westernpowerproducts.net
Mike Shaw


For a list of computer requirements to operate the diagnostic software, see the Computer Requirements below.

 

Computer Requirements
The diagnostic software and hardware used on the John Deere NG engines are different depending on the electronic control system. See NG Electronic Control Systems to determine the type of control system that diagnostics will occur on.

 

Woodward Diagnostic Software Requirements

  • Operating System of Windows '95, '98, or 3.1
  • 8 MB Ram
  • 3 1/2" floppy drive
  • USB port

 

John Deere Diagnostic Software Requirements

  • IBM PC or compatible computer with a Pentium class processor running at 233 MHz running the Windows(c) 95/98/ME/NT/2000 operating system.
  • 32 MB Ram Required; 64 MB Recommended
  • 20 MB of free hard drive space for diagnostic software only
  • 60 MB of free hard drive space for diagnostic and reprogramming software
  • 3 1/2" floppy drive
  • CD Rom drive
  • IEEE1284 ECP compliant parallel port

 

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