Cummins fault codes list

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Cummins Fault Codes List ISX pre-DPF 2002-2006

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 Cummins Fault Codes List

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 Cummins Fault Codes List

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 Network Data In Error

288 SAE J1939 Multiplexing Remote Accelerator Pedal or Lever Position Sensor System – Received Network Data In Error

295 Barometric Pressure – Data Erratic, Intermittent, or Incorrect

311 Injector Solenoid Driver Cylinder 1 Circuit – Current Above Normal, or Grounded Circuit

312 Injector Solenoid Driver Cylinder 5 Circuit – Current Above Normal, or Grounded Circuit

313 Injector Solenoid Driver Cylinder 3 Circuit – Current Above Normal, or Grounded Circuit

314 Injector Solenoid Driver Cylinder 6 Circuit – Current Above Normal, or Grounded Circuit

315 Injector Solenoid Driver Cylinder 2 Circuit – Current Above Normal, or Grounded Circuit

319 Real Time Clock Power Interrupt – Data Erratic, Intermittent, or Incorrect

321 Injector Solenoid Driver Cylinder 4 Circuit – Current Above Normal, or Grounded Circuit

322 Injector Solenoid Driver Cylinder 1 Circuit – Current Below Normal, or Open Circuit

323 Injector Solenoid Driver Cylinder 5 Circuit – Current Below Normal, or Open Circuit

324 Injector Solenoid Driver Cylinder 3 Circuit – Current Below Normal, or Open Circuit

325 Injector Solenoid Driver Cylinder 6 Circuit – Current Below Normal, or Open Circuit

331 Injector Solenoid Driver Cylinder 2 Circuit – Current Below Normal, or Open Circuit

332 Injector Solenoid Driver Cylinder 4 Circuit – Current Below Normal, or Open Circuit

338 Idle Shutdown Vehicle Accessories Relay Driver Circuit – Voltage Above Normal, or Shorted to High Source

339 Idle Shutdown Vehicle Accessories Relay Driver Circuit – Voltage Below Normal, or Shorted to Low Source

343 Engine Control Module Warning Internal Hardware Failure – Bad Intelligent Device or Component

346 Engine Control Module Calibration Memory Software – Bad Intelligent Device or Component

351 Injector Power Supply – Bad Intelligent Device or Component

352 Sensor Supply 1 Circuit – Voltage Below Normal, or Shorted to Low Source

386 Sensor Supply 1 Circuit – Voltage Above Normal, or Shorted to High Source Cummins Fault Codes List

415 Engine Oil Rifle Pressure – Data Valid but Below Normal Operational Range – Most Severe Level

418 Water in Fuel Indicator – Data Valid but Above Normal Operational Range – Least Severe Level

427 SAE J1939 Datalink – Abnormal Update Rate

428 Water-in-Fuel Indicator Sensor Circuit – Voltage Above Normal, or Shorted to High Source

429 Water-in-Fuel Indicator Sensor Circuit – Voltage Below Normal, or Shorted to Low Source

435 Engine Oil Rifle Pressure – Data Erratic, Intermittent, or Incorrect

441 Battery 1 Voltage – Data Valid but Below Normal Operational Range – Moderately Severe Level

442 Battery 1 Voltage – Data Valid but Above Normal Operational Range – Moderately Severe Level

Cummins ISX Codes 500-1000
546 Fuel Delivery Pressure Sensor Circuit – Voltage Above Normal, or Shorted to High Source

547 Fuel Delivery Pressure Sensor Circuit – Voltage Below Normal, or Shorted to Low Source

555 Crankcase Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level

556 Crankcase Pressure — Data Valid but Above Normal Operational Range — Most Severe Level

584 Starter Relay Driver Circuit – Voltage Above Normal, or Shorted to High Source

585 Starter Relay Driver Circuit – Voltage Below Normal, or Shorted to Low Source

596 Electrical Charging System Voltage – Data Valid but Above Normal Operational Range – Moderately Severe Level

597 Electrical Charging System Voltage – Data Valid but Below Normal Operational Range – Moderately Severe Level

598 Electrical Charging System Voltage – Data Valid but Below Normal Operational Range – Most Severe Level

649 Engine Oil Change Interval – Condition Exists

686 Turbocharger 1 Speed – Data Erratic, Intermittent, or Incorrect

687 Turbocharger 1 Speed – Data Valid but Below Normal Operational Range – Moderately Severe Level

689 Engine Crankshaft Speed/Position – Data Erratic, Intermittent, or Incorrect

689ism Engine Crankshaft Speed/Position – Data Erratic, Intermittent, or Incorrect

689isx Engine Crankshaft Speed/Position – Data Erratic, Intermittent, or Incorrect

691 Turbocharger 1 Compressor Inlet Temperature Sensor Circuit – Voltage Above Normal, or Shorted to High Source

692 Turbocharger 1 Compressor Inlet Temperature Sensor Circuit – Voltage Below Normal, or Shorted to Low Source

697 ECM Internal Temperature Sensor Circuit – Voltage Above Normal, or Shorted to High Source

698 ECM Internal Temperature Sensor Circuit – Voltage Below Normal, or Shorted to Low Source

731 Engine Speed / Position Camshaft and Crankshaft Misalignment – Mechanical System Not Responding Properly or Out of Adjustment

778 Engine Camshaft Speed/Position Sensor Choice

778ism Engine Camshaft Speed/Position Sensor – Data Erratic, Intermittent, or Incorrect

778isx Engine Camshaft Speed/Position Sensor – Data Erratic, Intermittent, or Incorrect

784 Adaptive Cruise Control Mode – Data Erratic, Intermittent, or Incorrect

Cummins ISX Codes 1000-1300
1117 Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect Cummins Fault Codes List

1239 Accelerator Pedal or Lever Position Sensor 2 Circuit – Voltage Above Normal, or Shorted to High Source

1241 Accelerator Pedal or Lever Position Sensor 2 Circuit – Voltage Below Normal, or Shorted to Low Source

1242 Accelerator Pedal or Lever Position Sensor 1 and 2 – Data Erratic, Intermittent, or Incorrect

Cummins ISX Codes 1300-1700
1663 Catalyst Inlet Temperature Sensor Swapped with Outlet – Condition Exists

1664 Catalyst Missing – Condition Exists

1665 Aftertreatment Exhaust Gas Temperature 1 Circuit – Voltage Below Normal, or Shorted to Low Source

1666 Aftertreatment Exhaust Gas Temperature 1 Circuit – Voltage Above Normal, or Shorted to High Source

1667 Aftertreatment Exhaust Gas Temperature 1 – Data Erratic, Intermittent, or Incorrect

1674 Aftertreatment Exhaust Gas Temperature 2 Circuit – Voltage Below Normal, or Shorted to Low Source

1675 Aftertreatment Exhaust Gas Temperature 2 Circuit – Voltage Above Normal, or Shorted to High Source

1676 Aftertreatment Exhaust Gas Temperature 2 – Data Erratic, Intermittent, or Incorrect

1691 Catalyst Efficiency – Out of Calibration

1695 Sensor Supply 5 – Voltage Above Normal, or Shorted to High Source

1696 Sensor Supply 5 – Voltage Below Normal, or Shorted to Low Source

Cummins ISX Codes 1700-1900
1843 Crankcase Pressure Circuit – Voltage Above Normal, or Shorted to High Source

1844 Crankcase Pressure Circuit – Voltage Below Normal, or Shorted to Low Source

1866 Exhaust Gas Recirculation Valve Delta Pressure – Data Erratic, Intermittent, or Incorrect

1876 Aftertreatment Exhaust Gas Temperature 3 Circuit – Voltage Above Normal, or Shorted to High Source

1877 Aftertreatment Exhaust Gas Temperature 3 Circuit – Voltage Below Normal, or Shorted to Low Source

1878 Aftertreatment Exhaust Gas Temperature 3 – Data Erratic, Intermittent, or Incorrect

1879 Aftertreatment Particulate Filter Differential Pressure Sensor Circuit – Voltage Above Normal, or Shorted to High Source

1881 Aftertreatment Particulate Filter Differential Pressure Sensor Circuit – Voltage Below Normal, or Shorted to Low Source

1883 Aftertreatment Particulate Filter Differential Pressure Sensor – Data Erratic, Intermittent, or Incorrect

1893 EGR Valve Control Circuit – Abnormal Update Rate

1895 EGR Valve Controller – Bad Intelligent Device or Component

1896 EGR Valve Controller – Out of Calibration

1899 Exhaust Gas Recirculation Valve Delta Pressure – Data Valid but Above Normal Operational Range- Moderately Severe Level

Cummins ISX Codes 1900-2000
1921 Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level

1922 Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Most Severe Level

1923 Aftertreatment Fuel shutoff Valve 1 Circuit – Voltage Above Normal, or Shorted to High Source

1924 Aftertreatment Fuel Shutoff Valve 1 Circuit – Voltage Below Normal, or Shorted to Low Source

1925 Aftertreatment Fuel Shutoff Valve 1 – Data Erratic, Intermittent, or Incorrect

1926 Aftertreatment Fuel Pressure Sensor – Data Erratic, Intermittent, or Incorrect

1927 Aftertreatment Fuel Pressure Sensor – Voltage Above Normal, or Shorted to High Source

1928 Aftertreatment Fuel Pressure Sensor – Voltage Below Normal, or Shorted to Low Source

1932 Aftertreatment Fuel Injector 1 – Data Erratic, Intermittent, or Incorrect

1933 ECU Power Output Supply Voltage 2 – Data Valid but Above Normal Operational Range – Moderately Severe Level

1934 ECU Power Output Supply Voltage 2 – Data Valid but Below Normal Operational Range – Moderately Severe Level

1935 EGR Actuator Driver Circuit – Root Cause Not Known

1938 ECU Power Output Supply Voltage 1 – Data Valid but Below Normal Operational Range – Moderately Severe Level

1942 Crankcase Pressure – Data Erratic, Intermittent, or Incorrect

1943 Ambient Air Density – Data Valid but Below Normal Operational Range – Least Severe Level

1961 EGR Valve Control Circuit Calculated Over Temperature – Data Valid but Above Normal Operational Range – Least Severe Level

1962 VGT Actuator Driver Over Temperature (Calculated – Data Valid but Above Normal Operational Range – Least Severe Level

1963 Aftertreatment Fuel Shutoff Valve 1 – Mechanical System Not Responding Properly or Out of Adjustment

1966 Aftertreatment Exhaust Gas Temperature 1 – Data Valid but Above Normal Operational Range – Most Severe Level

1968 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Moderately Severe Level

1969 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Most Severe Level

1972 Aftertreatment Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Moderately Severe Level

1973 Aftertreatment Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Most Severe Level

1974 Crankcase Pressure – Data Valid but Above Normal Operational Range – Least Severe Level Cummins Fault Codes List

1977 Aftertreatment Fuel Injector 1 Circuit – Current Below Normal, or Open Circuit

1981 Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Least Severe Level

1993 Aftertreatment Particulate Filter Missing – Condition Exists

Cummins ISX Codes 2000-2200
2182 Engine Brake Actuator Driver 1 Circuit – Voltage Above Normal, or Shorted to High Source

2183 Engine Brake Actuator Driver 1 Circuit – Voltage Below Normal, or Shorted to Low Source

2185 Sensor Supply 4 Circuit — Voltage Above Normal, or Shorted to High Source

2186 Sensor Supply 4 Circuit – Voltage Below Normal, or Shorted to Low Source

2195 Auxiliary Equipment Sensor Input 3 Engine Protection Critical – Special Instructions

2198 VGT Actuator Driver Circuit – Root Cause Not Known

Cummins ISX Codes 2200-2400
2215 Fuel Pump Delivery Pressure — Data Valid but Below Normal Operational Range — Moderately Severe Level

2216 Fuel Pump Delivery Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level

2272 EGR Valve Position Circuit – Voltage Below Normal, or Shorted to Low Source

2273 Exhaust Gas Recirculation Valve Delta Pressure Sensor Circuit – Voltage Above Normal, or Shorted to High Source

2274 Exhaust Gas Recirculation Valve Delta Pressure Sensor Circuit – Voltage Below Normal, or Shorted to Low Source

2288 Turbocharger 1 Speed – Data Valid but Above Normal Operational Range – Least Severe Level

2311 Electronic Fuel Injection Control Valve Circuit — Condition Exists

2312 Timing Actuator Driver Circuit – Condition Exists

2313 Fuel Control Valve Solenoid Driver 2 Circuit – Condition Exists

2314 Engine Timing Actuator Driver 2 Circuit Error – Condition Exists

2321 Engine Crankshaft Speed/Position — Data Erratic, Intermittent, or Incorrect

2322 Engine Camshaft Speed/Position Sensor — Data Erratic, Intermittent, or Incorrect

2345 Turbocharger 1 Speed – Abnormal Rate of Change

2346 Turbocharger Turbine Inlet Temperature (Calculated – Data Valid but Above Normal Operational Range – Least Severe Level

2347 Turbocharger Compressor Outlet Temperature (Calculated – Data Valid but Above Normal Operational Range – Least Severe Level

2349 EGR Valve Control Circuit – Current Below Normal, or Open Circuit

2351 EGR Valve Control Circuit – Voltage Below Normal, or Shorted to Low Source

2357 EGR Valve Control Circuit – Mechanical System Not Responding Properly or Out of Adjustment

2359 Exhaust Gas Recirculation Valve Delta Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level

2363 Engine Brake Actuator Driver Output 2 Circuit Choice

2363ism Engine Brake Actuator Driver Output 2 Circuit – Voltage Below Normal, or Shorted to Low Source Cummins Fault Codes List

2363isx Engine Brake Actuator Driver Output 2 Circuit – Voltage Below Normal, or Shorted to Low Source

2365 Engine Brake Actuator Driver Output 3 Circuit – Voltage Below Normal, or Shorted to Low Source

2367 Engine Brake Actuator Driver Output 2 Circuit Choice

2367ism Engine Brake Actuator Driver Output 2 Circuit – Voltage Above Normal, or Shorted to High Source

2367isx Engine Brake Actuator Driver Output 2 Circuit – Voltage Above Normal, or Shorted to High Source

2368 Engine Brake Actuator Driver Output 3 Circuit – Voltage Above Normal, or Shorted to High Source

2372 Fuel Filter Differential Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level

2373 Exhaust Gas Pressure Sensor Circuit – Voltage Above Normal, or Shorted to High Source

2374 Exhaust Gas Pressure Sensor Circuit – Voltage Below Normal, or Shorted to Low Source

2375 Exhaust Gas Recirculation Temperature Sensor Circuit – Voltage Above Normal, or Shorted to High Source

2376 Exhaust Gas Recirculation Temperature Sensor Circuit – Voltage Below Normal, or Shorted to Low Source

2377 Fan Control Circuit — Voltage Above Normal, or Shorted to High Source

2387 VGT Actuator Driver Circuit (Motor – Mechanical System Not Responding Properly, or Out of Adjustment

Cummins ISX Codes 2400-2600
2412 Fan Speed – Data Erratic, Intermittent, or Incorrect

2448 Coolant Level – Data Valid but Below Normal Operational Range – Least Severe Level

2449 VGT Actuator Controller – Out of Calibration

2451 Turbocharger Turbine Inlet Temperature (Calculated – Data Valid but Above Normal Operational Range – Moderately Severe Level

2551 Injector Metering Rail 2 Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level

2552 Injector Metering Rail 1 Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level

2554 Exhaust Gas Pressure – Data Erratic, Intermittent, or Incorrect

Cummins ISX Codes 2600-2800
2634 VGT Actuator Controller – Bad Intelligent Device or Component

2635 VGT Actuator Driver Circuit – Condition Exists

2636 VGT Actuator Driver Circuit – Abnormal Update Rate

2637 Catalyst Face Plugged – Root Cause Not Known

2638 Catalyst Efficiency – Out of Calibration

2639 Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Least Severe Level

2646 Engine Coolant Temperature – Condition Exists

2659 Engine Coolant Temperature – Condition Exists

2728 Aftertreatment Fuel Injector 1 – Data Valid but Above Normal Operational Range – Moderately Severe Level

2732 Aftertreatment Fuel Drain Valve Circuit – Voltage Above Normal or Shorted to High Source

2733 Aftertreatment Fuel Drain Valve Circuit – Voltage Below Normal or Shorted to Low Source

2738 Start Enable Device 1 Circuit (Ether Injection – Voltage Above Normal or Shorted to High Source

2739 Start Enable Device 1 Circuit (Ether Injection – Voltage Below Normal or Shorted to Low Source

2741 Aftertreatment Fuel Shutoff Valve 1 Swapped – Condition Exists

2742 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Below Normal Operational Range – Least Severe Level

2743 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Below Normal Operational Range – Moderately Severe Level

2754 Engine Particulate Filter Inlet Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level

2764 Exhaust Gas Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level

2774 Engine Exhaust Gas Recirculation (EGR System – Condition Exists

2777 Particulate Trap Active Regeneration Inhibited Due to Inhibit Switch – Condition Exists

2789 Engine Coolant Temperature – Data Valid but Below Normal Operational Range – Moderately Severe Level

Cummins ISX Codes 2800-3000
2813 EGR Valve Control – Special Instructions

2878 Aftertreatment Fuel Drain Valve – Mechanical System Not Responding Properly or Out of Adjustment

2879 Aftertreatment Fuel Drain Valve – Data Erratic, Intermittent, or Incorrect

2881 Aftertreatment Fuel Pressure Sensor – Data Valid but Below Normal Operational Range – Least Severe Level Cummins Fault Codes List

2961 Exhaust Gas Recirculation Temperature – Data Valid but Above Normal Operational Range – Least Severe Level

2962 Exhaust Gas Recirculation Temperature – Data Valid but Above Normal Operational Range – Moderately Severe Level

2963 Engine Coolant Temperature — Data Valid but Above Normal Operational Range — Least Severe Level

2964 Intake Manifold 1 Temperature — Data Valid but Above Normal Operational Range — Least Severe Level

2973 Intake Manifold 1 Pressure – Data Erratic, Intermittent,

Cummins Fault Codes List Prior to 2002

111 Electronic Control Module (ECM Microprocessor

115 Camshaft Engine Position Sensor Circuit

121 Crankshaft Engine Position Sensor Circuit

122 Intake Manifold Pressure Sensor Circuit

123 Intake Manifold Pressure Sensor Circuit

131 Accelerator Position Sensor Circuit

132 Accelerator Position Sensor Circuit

133 Remote Throttle Position Sensor Circuit

134 Remote Throttle Position Sensor Circuit

135 Oil Pressure Sensor Circuit

141 Oil Pressure Sensor Circuit

143 Oil Pressure Sensor Circuit

144 Coolant Temperature Sensor Circuit

145 Coolant Temperature Sensor Circuit

147 Frequency Throttle Circuit

148 Frequency Throttle Circuit

153 Intake Manifold Temperature Sensor Circuit

154 Intake Manifold Temperature Sensor Circuit

187 Sensor Voltage Supply

198 ICON™ Lamp Circuit

199 ICON™ Lamp Circuit

212 Oil Temperature Sensor Circuit

213 Oil Temperature Sensor Circuit

216 Wet Tank Pressure Sensor Circuit

217 Wet Tank Pressure Sensor Circuit

218 Wet Tank Pressure Sensor Circuit

221 Ambient Air Pressure Sensor Circuit

222 Ambient Air Pressure Sensor Circuit

223 Burn Valve Solenoid

227 Sensor Voltage Supply

234 Engine Overspeed

235 Engine Coolant Level – Engine Protection

241 Vehicle Speed Sensor Circuit

242 Vehicle Speed Sensor Circuit

245 Engine Fan Clutch Supply Circuit

249 Ambient Air Temperature Sensor Circuit

254 Fuel Shutoff Valve Solenoid Supply Circuit

255 Fuel Shutoff Valve Solenoid Supply Circuit

256 Ambient Air Temperature Sensor Circuit

259 Fuel Shutoff Valve

284 Sensor Supply Voltage

285 J1939 Datalink Multiplexing

286 J1939 Datalink Multiplexing

293 OEM Temperature Sensor Circuit

294 OEM Temperature Sensor Circuit

295 Ambient Air Pressure Sensor

297 OEM Pressure Sensor Circuit

298 OEM Pressure Sensor Circuit

319 Real-Time Clock Power Circuit

338 Idle Shutdown Vehicle Accessory/Ignition Bus Relay Circuit

339 Idle Shutdown Vehicle Accessory/Ignition Bus Relay Circuit

341 Unswitched Battery Supply Circuit

343 Electronic Control Module (ECM

349 Auxiliary Speed Governor

352 Sensor Voltage Supply

359 ICON™ Idle Control System

378 Actuator Circuit

379 Actuator Circuit

386 Sensor Voltage Supply

387 Throttle Voltage Supply

388 Engine Brake Supply Circuit

392 Engine Brake Supply Circuit

393 Engine Brake Supply Circuit

394 Actuator Circuit

395 Actuator Circuit

396 Actuator Circuit

397 Actuator Circuit

398 Actuator Circuit

399 Actuator Circuit

415 Actuator Circuit

419 Intake Manifold Pressure Sensor

422 Coolant Level Sensor Circuit

426 J1939 Datalink Communication

428 Water-In-Fuel (WIF Sensor Circuit

429 Water-In-Fuel (WIF Sensor Circuit

431 Idle Validation Switch Choice

431iss Idle Validation Switch Circuit

431niss Idle Validation Switch Circuit

431sss Idle Validation Switch Circuit

432 Accelerator Pedal Circuit

433 Intake Manifold Pressure Circuit

434 Unswitched Battery Supply Circuit

435 Oil Pressure Sensor

441 Unswitched Battery Supply Circuit

442 Unswitched Battery Supply Circuit

443 Throttle Voltage Supply

449 High Fuel Pressure

451 Front Rail Pressure Sensor Circuit

452 Front Rail Pressure Sensor Circuit

465 Wastegate Actuator Number 1 Circuit

466 Wastegate Actuator Number 1 Circuit

469 ICON™ Cab Thermostat Circuit

472 Crankcase Oil Level Sensor Circuit

474 Starter Solenoid Lockout Relay Driver Circuit

475 Electronic Air Compressor Governor Circuit

476 Electronic Air Compressor Governor Circuit

482 Low Fuel Pressure

483 Rear Rail Pressure Sensor Circuit

484 Rear Rail Pressure Sensor Circuit

485 Rear Rail Pressure Sensor Circuit

486 Fuel System Underfueling

489 Auxiliary Speed Input Error

491 Wastegate Actuator Number 2 Circuit

492 Wastegate Actuator Number 2 Circuit

496 Sensor Supply Voltage

527 Switched Output A Error

528 Switched Output B Error

529 Switched Output B Error

536 Autoshift Low Gear Actuator (Lockout Solenoid Circuit

537 Autoshift High Gear Actuator (Shift Solenoid Circuit

538 Autoshift Neutral Actuator

541 ICON™ Starter Relay/Interlock Circuit

544 Top 2 Transmission Circuit – Mechanical System Failure

546 Fuel Pressure Sensor Circuit

547 Fuel Pressure Sensor Circuit

551 Idle Validation Switch Choice

551iss Idle Validation Switch Circuit

551ivs Idle Validation Switch Circuit

551sss Idle Validation Switch Circuit

553 Fuel System Overfueling

559 Fuel System Underfueling

581 Fuel Inlet Restriction Sensor Circuit

582 Fuel Inlet Restriction Sensor Circuit

583 Fuel Inlet Restriction Sensor Circuit

588 Engine Start Alarm Circuit

589 Engine Start Alarm Circuit

595 Turbocharger Speed High (Calculated

596 Voltage Monitor – High Voltage

597 Voltage Monitor – Low Voltage

598 Voltage Monitor – Very Low Voltage

731 Engine Speed Sensor and Camshaft Position Sensor – Mechanical Misalignment Between Camshaft and Crankshaft Sensors

753 Engine Speed Sensor Circuit

755 Fuel Injector

758 Fuel Injector

784 Adaptive Cruise Control Circuit

951 Cylinder Power Imbalance

 

 

 


For Cummins ISX fault codes on later models (2003 & up), use ISX Fault Codes (2003 & Later)

Please contact to discuss your Cummins diagnostic needs!

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