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Caterpillar C15 Fault Code Manual (MXS/NXS/RKS)


Print version. OEM factory Cat C15 electronic troubleshooting manual. Use for engine serial numbers beginning with RKS, MXS & NXS. Helps reduce diagnostic time.

Caterpillar C15 Fault Code Manual (MXS/NXS/RKS)

Factory printed Caterpillar C15 Fault Code / Engine Electronic Troubleshooting manual.  Includes fault codes & wire diagrams. Helps reduce diagnostic times for your electronic diagnostics.  Whether you need to chase fault codes, perform diagnostic functional testing, view wire diagrams for a specific device, or a multitude of other diagnostic needs, this surely is the best manual to fit your needs.


Caterpillar C15

Engine Serial Number Prefix:


  • Caterpillar Electronic troubleshooting
    • System Overview
    • ECM Replacement
    • Sensors & Electrical Connectors
  • Caterpillar Programming Parameters
    • Dyno Mode
    • Test ECM Mode
    • Customer Passwords
    • ECM Date/Time Stamped Info
    • ECM Snapshot
    • Factory Passwords
    • Flash Programming
    • Service Info Report
  • Customer Specified Parameters
    • Customer Specified Parameters, Table & Worksheet
    • Cruise Control
    • Data Link
    • Dedicated PTO Parameters
    • Driver Reward Parameters
    • ECM ID Parameters
    • Engine/Gear Parameters
    • Engine Monitoring
    • Idle Parameters
    • Input Selections
    • Maintenance Parameters
    • Output Selections
    • Security Access Parameters
    • Selected Engine Rating
    • Smart Idle Parameters
    • Timer Parameters
    • Trip Parameters
    • Vehicle Activity Report Parameters
    • Vehicle Speed Parameters
  • System Configuration Parameters
  • Caterpillar Troubleshooting w/o diagnostic code
    • Cannot Reach Top Engine RPM
    • Cannot Reach Vehicle Speed Limit
    • Check Engine Lamp or Warning Lamp Inoperative
    • Cooling Fan Always On
    • Cruise Control, Idle or PTO Cannot Be Set
    • Driver Questionnaire & Response
    • ECM Won’t Accept Factory Passwords
    • Electronic Service Tool Won’t Communicate With ECM
    • Engine
      • Cranks But No Start
      • Misfires, Runs Rough or is Unstable
      • Jake / Engine Brake Won’t Turn On
      • Vibration
      • Won’t Crank
    • Excessive
      • Black Smoke
      • Fuel Consumption
      • White Smoke
    • Intermittent Cruise Control, Idle or PTO Kickout
    • Intermittent Low Power or Power Cut Out
    • Low Power, Poor or No Throttle Response
    • Poor Acceleration or Response
  • Troubleshooting w/ diagnostic code
    • All Engine Related Fault Codes
  • Diagnostic functional tests
    • 5 Volt Engine Pressure Sensor Supply Circuit Test
    • Throttle Sensor Circuit Test
    • Air Inlet Shutoff Circuit Test
    • Data Link Circuit Test
    • Aux. Brake Circuit Test
    • Check Engine Lamp Circuit Test
    • Clutch Pedal Position Switch Test
    • Coolant Level Sensor Test
    • Cooling Fan Circuit & AC High Pressure Switch Test
    • Cruise Control Switch Test
    • Diagnostic Enable Switch Circuit Test
    • Eaton Top 2 Transmission Circuit  Test
    • ECM Memory Test
    • Electrical Connectors Inspect
    • Engine
      • Coolant Diverter Circuit Test
      • Pressure Sensor Open / Short Circuit  Test
      • Running Output Circuit Test
      • Shutdown Output Test
      • Speed / Timing Sensor Circuit Test
      • Temperature Sensor Open / Short Circuit Test
    • Fan Override Switch Circuit Test
    • Idle Shutdown Timer Test
    • Ignition Key Switch & Battery Supply Circuit Test
    • Ignore Brake / Clutch Circuit Test
    • Injector Solenoid Circuit Test
    • Intake Valve Actuation System Oil Pressure Circuit Test
    • Intake Valve Actuator & Response Circuit Test
    • Multi-Torque Test
    • Neutral Switch Circuit Test
    • Powertrain Data Link Circuit Test
    • PTO
      • Engine RPM Set Speed Circuit Test
      • Shutdown Timer Test
      • Switch Circuit Test
      • Switch ON Lamp Circuit Test
      • Remote PTO Accelerator Position Sensor Circuit Test
    • Compression Brake Solenoid Circuit Test
    • Service Brake Pedal Position Circuit Test (both circuits)
    • Starting Aid Output & Switch Circuit Test
    • Tachometer Circuit Test
    • Torque Limit Switch Circuit Test
    • 2 Speed Axle Switch Circuit Test
    • Vehicle Speedometer Circuit Test
    • Warning Lamp Circuit Test
  • Calibration procedures
    • Engine Speed / Timing Sensor Calibration
    • Injector Code Calibration
    • Vehicle Speed Circuit Calibration

Can be used with or without the use of Cat ET, Pro-Link or other scan tools.  While the proper scan equipment will speed diagnostic times, much testing can still be performed using only a multi-meter.

Caterpillar C15 Electronic Troubleshooting Manual

Manuals normally ship out within 24 hours.

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While this is a factory manual, we are not representing to be an agent of this manufacturer

Caterpillar C15 Fault Code Manual (MXS/NXS/RKS)


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Caterpillar C15 Fault Code Manual (MXS/NXS/RKS)