This component technical manual is for John Deere PowerTech 10.5L, 12.5L.
Publication reference: CTM188.
What’s Covered Inside
- General Information
- Repair and Adjustments
- Theory of Operation
- Diagnostics
- Tools
- Specifications
Manual Contents and Coverage
Table of Content
Section 01—General Information
Group 000—Safety
Group 001—Engine Identification
Group 002—Fuels
Section 02—Repair and Adjustments
Group 090—Dual Rail Fuel System Repair and Adjustment
Group 091—Single Rail Fuel System Repair and Adjustment
Group 110—Electrical Engine Control Repair and Adjustment
Section 03—Theory of Operation
Group 130—Electronic Fuel System Operation
Group 140—Electrical Control System Operation
Section 04—Diagnostics
Group 150—Observable Diagnostics and Tests
Group 160—Trouble Code Diagnostics and Tests
Section 05—Tools
Group 170—Repair Tools
Group 180—Diagnostic Service Tools
Section 06—Specifications
Group 200—Repair Specifications
Group 210—Diagnostic Specifications
Use this component technical manual in conjunction with the base engine repair manual and the respective machine technical manual. See repair manuals for information on component removal and installation, and gaining access to the components.
problems.
Applicable special tools and other materials needed to do the job, specifications, and helpful reference materials are covered in separate groups toward the end of this manual. Fundamental service information is available from other sources covering basic theory of operation, fundamentals of troubleshooting, general maintenance, and basic types
of failures and their causes.
Section 01—General Information
Group 000—Safety
Group 001—Engine Identification
Group 002—Fuels
Section 02—Repair and Adjustments
Group 090—Dual Rail Fuel System Repair and Adjustment
Group 091—Single Rail Fuel System Repair and Adjustment
Group 110—Electrical Engine Control Repair and Adjustment
Section 03—Theory of Operation
Group 130—Electronic Fuel System Operation
Group 140—Electrical Control System Operation
Section 04—Diagnostics
Group 150—Observable Diagnostics and Tests
Group 160—Trouble Code Diagnostics and Tests
Section 05—Tools
Group 170—Repair Tools
Group 180—Diagnostic Service Tools
Section 06—Specifications
Group 200—Repair Specifications
Group 210—Diagnostic Specifications
Use this component technical manual in conjunction with the base engine repair manual and the respective machine technical manual. See repair manuals for information on component removal and installation, and gaining access to the components.
problems.
Applicable special tools and other materials needed to do the job, specifications, and helpful reference materials are covered in separate groups toward the end of this manual. Fundamental service information is available from other sources covering basic theory of operation, fundamentals of troubleshooting, general maintenance, and basic types
of failures and their causes.
Use CTM188 with the model and version details above when selecting the manual for your John Deere equipment.







