Cummins ISX Codes:
A complete list of all fault codes for Cummins ISX engines (2003 & later).
Here are all the Cummins ISX codes available for the Cummins ECM. These Cummins trouble codes pertain to ISX engines built with the EGR system (2002 & later).
Cummins ISX Codes 111-500
111 Electronic Control Module Critical Internal Failure - Bad Intelligent Device or Component
115 Engine Magnetic Speed/Position Lost Both of Two Signals - Data Erratic, Intermittent, or Incorrect
122 Intake Manifold 1 Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source
123 Intake Manifold 1 Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source
125 Intake Manifold 1 Pressure - Data Valid but Below Normal Operational Range - Moderately Severe Level
131 Accelerator Pedal or Lever Position Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source
132 Accelerator Pedal or Lever Position Sensor 1 Circuit - Voltage Below Normal or Shorted to Low Source
133 Remote Accelerator Pedal or Lever Position Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source
134 Remote Accelerator Pedal or Lever Position Sensor 1 Circuit - Voltage Below Normal, or Shorted to Low Source
135 Engine Oil Rifle Pressure 1 Sensor Circuit - Voltage Above Normal, or Shorted to High Source
141 Engine Oil Rifle Pressure 1 Sensor Circuit - Voltage Below Normal, or Shorted to Low Source
143 Engine Oil Rifle Pressure - Data Valid but Below Normal Operational Range - Moderately Severe Level
144 Engine Coolant Temperature 1 Sensor Circuit - Voltage Above Normal, or Shorted to High Source
145 Engine Coolant Temperature 1 Sensor Circuit - Voltage Below Normal, or Shorted to Low Source
146 Engine Coolant Temperature - Data Valid but Above Normal Operational Range - Moderately Severe Level
151 Engine Coolant Temperature - Data Valid but Above Normal Operational Range - Most Severe Level
153 Intake Manifold 1 Temperature Sensor Circuit - Voltage Above Normal, or Shorted to High Source
154 Intake Manifold 1 Temperature Sensor Circuit - Voltage Below Normal, or Shorted to Low Source
155 Intake Manifold 1 Temperature - Data Valid but Above Normal Operational Range - Most Severe Level
187 Sensor Supply 2 Circuit Choice
187ism Sensor Supply 2 Circuit - Voltage Below Normal, or Shorted to Low Source
187isx Sensor Supply 2 Circuit - Voltage Below Normal, or Shorted to Low Source
195 Coolant Level Sensor 1 Circuit Choice
195-2wire Coolant Level Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source
195-3wire Coolant Level Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source
196 Coolant Level Sensor 1 Circuit Choice
196-2wire Coolant Level Sensor 1 Circuit - Voltage Below Normal, or Shorted to Low Source
196-3wire Coolant Level Sensor 1 Circuit - Voltage Below Normal, or Shorted to Low Source
197 Coolant Level - Data Valid but Below Normal Operational Range - Moderately Severe Level
212 Engine Oil Temperature Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source
213 Engine Oil Temperature Sensor 1 Circuit — Voltage Below Normal, or Shorted to Low Source
214 Engine Oil Temperature High - Data Valid but Above Normal Operational Range - Most Severe Level
221 Barometric Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source
222 Barometric Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source
227 Sensor Supply 2 Circuit - Voltage Above Normal, or Shorted to High Source
234 Engine Crankshaft Speed/Position - Data Valid but Above Normal Operational Range - Most Severe Level
238 Sensor Supply 3 Circuit - Voltage Below Normal, or Shorted to Low Source
241 Wheel-Based Vehicle Speed - Data Erratic, Intermittent or Incorrect
242 Wheel-Based Vehicle Speed Sensor Circuit Tampering Has Been Detected - Abnormal Rate of Change
245 Fan Control Circuit - Voltage Below Normal or Shorted to Low Source
249 Ambient Air Temperature Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source
254 Engine Fuel Shutoff Valve Driver Circuit - Voltage Below Normal, or Shorted to Low Source
255 Engine Fuel Shutoff Valve Driver Circuit - Voltage Above Normal, or Shorted to High Source
256 Ambient Air Temperature Sensor 1 Circuit - Voltage Below Normal, or Shorted to Low Source
257 Engine Fuel shutoff Valve Driver - Mechanical System Not Responding Properly or Out of Adjustment
263 Engine Fuel Temperature Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source
265 Engine Fuel Temperature Sensor 1 Circuit - Voltage Below Normal, or Shorted to Low Source
285 SAE J1939 Multiplexing PGN Timeout Error - Abnormal Update Rate
286 SAE J1939 Multiplexing Configuration Error - Out of Calibration
287 SAE J1939 Multiplexed Accelerator Pedal or Lever Sensor System - Received N