2014 Navistar N13 Engine with SCR Diagnostic Manual

DIAGNOSTIC MANUAL 0000002161 N13 Engine with SCR Revision 10 EPA 10 with SCR - US, Canada, Mexico October 2014 DIAGNOSTIC MANUAL N13 Engine with SCR Navistar, Inc. 2701 Navistar Drive, Lisle, IL 60532 USA ©2014 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

DIAGNOSTIC MANUAL I TABLE OF CONTENTS Foreword...................................................................................................................1 Service Diagnosis ........................................................................................................2 Safety Information........................................................................................................3 SCR Component Locator Guide........................................................................................7 Engine Systems.........................................................................................................13 Engine and Vehicle Features..........................................................................................75 Diagnostic Software Operation and Special Test Procedures...................................................87 Engine Symptoms Diagnostics......................................................................................125 Engine System Tests and Inspections.............................................................................185 Electronic Control Systems Diagnostics..........................................................................247 Diagnostic Tools and Accessories................................................................................1455 Abbreviations and Acronyms......................................................................................1507 Terminology...........................................................................................................1519 Appendix A: Performance Speciﬁcations........................................................................1533 Appendix B: Signal Values..........................................................................................1547 Appendix C: Technical Service Information (TSI)...............................................................1561 Appendix D: Component Locator.................................................................................1565

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DIAGNOSTIC MANUAL 1 Foreword Navistar, Inc. is committed to continuous research and development to improve products and introduce technological advances. Procedures, specifications, and parts defined in published technical service literature may be altered. NOTE: Photo illustrations identify specific parts or assemblies that support text and procedures; other areas in a photo illustration may not be exact. This manual includes necessary information and specifications for technicians to maintain Navistar ® diesel engines. See vehicle manuals and Technical Service Information (TSI) bulletins for additional information. Technical Service Literature Navistar ® N13 with SCR Engine Operation and Maintenance Manual Navistar ® N13 with SCR Engine Service Manual Navistar ® N13 with SCR Engine and Aftertreatment Wiring Schematic Form Technical Service Literature is revised periodically. If a technical publication is ordered, the latest revision will be supplied. NOTE: To order technical service literature, contact your International dealer.

2 DIAGNOSTIC MANUAL Service Diagnosis Service diagnosis is an investigative procedure that must be followed to find and correct an engine application problem or an engine problem. If the problem is engine application, see specific vehicle manuals for further diagnostic information. If the problem is the engine, see specific Engine Diagnostic Manual for further diagnostic information. Prerequisites for Effective Diagnosis • Availability of gauges and diagnostic test equipment • Availability of current information for engine application and engine systems • Knowledge of the principles of operation for engine application and engine systems • Knowledge to understand and do procedures in diagnostic and service publications Technical Service Literature required for Effective Diagnosis • Engine Service Manual • Engine Diagnostic Manual • Diagnostics Forms • Engine Wiring Schematic Form • Service Bulletins

DIAGNOSTIC MANUAL 3 Safety Information This manual provides general and specific maintenance procedures essential for reliable engine operation and your safety. Since many variations in procedures, tools, and service parts are involved, advice for all possible safety conditions and hazards cannot be stated. Read safety instructions before doing any service and test procedures for the engine or vehicle. See related application manuals for more information. Disregard for Safety Instructions, Warnings, Cautions, and Notes in this manual can lead to injury, death or damage to the engine or vehicle. Safety Terminology Three terms are used to stress your safety and safe operation of the engine: Warning, Caution, and Note Warning: A warning describes actions necessary to prevent or eliminate conditions, hazards, and unsafe practices that can cause personal injury or death. Caution: A caution describes actions necessary to prevent or eliminate conditions that can cause damage to the engine or vehicle. Note: A note describes actions necessary for correct, efficient engine operation. Safety Instructions Work Area • Keep work area clean, dry, and organized. • Keep tools and parts off the floor. • Make sure the work area is ventilated and well lit. • Make sure a First Aid Kit is available. Safety Equipment • Use correct lifting devices. • Use safety blocks and stands. Protective Measures • Wear protective safety glasses and shoes. • Wear correct hearing protection. • Wear cotton work clothing. • Wear sleeved heat protective gloves. • Do not wear rings, watches or other jewelry. • Restrain long hair. Vehicle • Make sure the vehicle is in neutral, the parking brake is set, and the wheels are blocked before servicing engine.

4 DIAGNOSTIC MANUAL • Clear the area before starting the engine. Engine • The engine should be operated or serviced only by qualified individuals. • Provide necessary ventilation when operating engine in a closed area. • Keep combustible material away from engine exhaust system and exhaust manifolds. • Install all shields, guards, and access covers before operating engine. • Do not run engine with unprotected air inlets or exhaust openings. If unavoidable for service reasons, put protective screens over all openings before servicing engine. • Shut engine off and relieve all pressure in the system before removing panels, housing covers, and caps. • If an engine is not safe to operate, tag the engine and ignition key. Fire Prevention • Make sure charged fire extinguishers are in the work area. NOTE: Check the classification of each fire extinguisher to ensure that the following fire types can be extinguished. 1. Type A — Wood, paper, textiles, and rubbish 2. Type B — Flammable liquids 3. Type C — Electrical equipment Batteries • Always disconnect the main negative battery cable first. • Always connect the main negative battery cable last. • Avoid leaning over batteries. • Protect your eyes. • Do not expose batteries to open flames or sparks. • Do not smoke in workplace. Compressed Air • Use an OSHA approved blow gun rated at 30 psi.(207 kPa) • Limit shop air pressure to 30 psi (207 kPa). • Wear safety glasses or goggles. • Wear hearing protection. • Use shielding to protect others in the work area. • Do not direct compressed air at body or clothing. Tools • Make sure all tools are in good condition. • Make sure all standard electrical tools are grounded.

DIAGNOSTIC MANUAL 5 • Check for frayed power cords before using power tools. Fluids Under Pressure • Use extreme caution when working on systems under pressure. • Follow approved procedures only. Fuel • Do not over fill the fuel tank. Over fill creates a fire hazard. • Do not smoke in the work area. • Do not refuel the tank when the engine is running. Removal of Tools, Parts, and Equipment • Reinstall all safety guards, shields, and covers after servicing the engine. • Make sure all tools, parts, and service equipment are removed from the engine and vehicle after all work is done.

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2014 Navistar N13 Engine with SCR Diagnostic Manual

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