John Deere 4045, 6068 2-Valve Diesel Engine – Level 25 ECU Repair Manual (CTM152819)

Table of Content
Section 01—General Information
Group 000—Safety
Group 001—Engine Identification
Group 002—Fuels, Lubricants, and Coolant
Section 02—Repair and Adjustments
Group 090—Electronic Fuel System Repair and Adjustments
Group 110—Electronic Engine Control Repair and Adjustment
Group 112—Connector Repair and Adjustment
Section 03—Theory of Operation
Group 130—Electronic Fuel System Operation
Group 135—Air and Exhaust Operation
Group 140—Electrical Control System
Section 04—Diagnostics
Group 150—Observable Diagnostics
Group 155—Checks, Tests, and Procedures
Group 160—Diagnostic Instructions and Information
Group 161—DTC SPN – 000001—000199
Group 162—DTC SPN – 000200—000699
Group 163—DTC SPN – 000700—001999
Group 164—DTC SPN – 002000—002999
Group 165—DTC SPN – 003000—529999
Section 05—Special Tools
Group 170—Dealer Fabricated Tools
Group 171—SERVICEGARD Special Tools
Group 172—JDParts Service Tools
Section 06—Harnesses and Schematics
Group 190—Wiring Harness Information
Group 195—Electrical Schematics
Section 07—Specifications
Group 200—General Engine Specifications
Group 210—Diagnostic Specifications
Essential tools required in performing certain service work are identified in this manual and are recommended for use.
This manual covers the level 25 electronic fuel system with the high-pressure common rail (HPCR) and 2-valves per cylinder PowerTech “E” engines. The following companion manual covers the base engine.
• CTM104—Base Engine
Information in this manual is organized in sections and sub-divided into groups.
Section 01: Covers the safety measures to follow while repairing the engine; engine identification features, engine emission and application details, and information about the fuels, lubricants, and coolants.
Section 02: Covers the repair and adjustment procedures.
Section 03: Explains the theory of operation of each system.
Section 04: Covers diagnostic and provides troubleshooting procedures to find problems.
Section 05: Covers special tools needed.
Section 06: Contains wiring harness information and electrical schematics.
Section 07: Summarizes specifications and torque values.
Hardware on these engines is metric in size.
Component Technical Manuals: Contain information to be used as service guides for specific components.
Component technical manuals are written as stand-alone manuals covering multiple machine applications