ECU - Engine Control Unit Diagnostic Trouble Codes / Service Fault Codes (Cummins Control Unit)

NOTE: Following Cummins engine codes are pointed out in two ways: First the John Deere DTCs and afterwards the Cummins SFCs (Service Fault Codes).

ECU - Engine Control Unit Diagnostic Trouble Codes / Service Fault Codes (Cummins Control Unit)
Control Unit SPN FMI SFC Pri. Indicator Light Description Effect
ECU 91 19 287 1 Stop Accelerator Pedal Position. The engine will only idle.
ECU 94 03 546 2 Warning Fuel Pressure Sensor Voltage High. Engine will run derated.
ECU 94 04 547 2 Warning Fuel Pressure Sensor Voltage Low. Engine will run derated.
ECU 94 16 449 2 Warning Excessive Fuel Supply Pressure. Engine may have black smoke and will run derated.
ECU 94 18 482 2 Warning Low Fuel Supply Pressure. Engine may not start, may have low power, may have white smoke or run rough.
ECU 97 03 428 2 Warning Water In Fuel Signal Voltage High. None on performance.
ECU 97 04 429 2 Warning Water In Fuel Signal Voltage Low. None on performance.
ECU 97 15 418 3 Maintenance Water In Fuel Detected. Possible white smoke, or hard starting.
ECU 100 01 415 1 Stop Engine Oil Pressure Below Limit (Very Low Oil Pressure). Progressive power derate with increasing time after alert.
ECU 100 02 435 2 Warning Engine Oil Pressure. None on performance. No engine protection for oil pressure.
ECU 100 03 135 2 Warning Engine Oil Pressure Voltage High. No engine protection for oil pressure.
ECU 100 04 141 2 Warning Engine Oil Pressure Voltage Low. No engine protection for oil pressure.
ECU 100 18 143 2 Warning Engine Oil Pressure Below Limit (Low Oil Pressure). Progressive power and speed derate.
ECU 102 02 433 2 Warning Intake Manifold Pressure Reading High. Engine will run derated.
ECU 102 03 122 2 Warning Intake Manifold Pressure Voltage High. Derate in power output of the engine.
ECU 102 04 123 2 Warning Intake Manifold Pressure Voltage Low. Derate in power output of the engine.
ECU 103 16 595 2 Warning Turbocharger Overspeed Protection. Engine will run derated.

 

OUZXMAG,0001D3E -19-25AUG04-1/4

ECU - Engine Control Unit Diagnostic Trouble Codes / Service Fault Codes (Cummins Control Unit)
Control Unit SPN FMI SFC Pri. Indicator Light Description Effect
ECU 105 00 155 1 Stop Intake Manifold Temperature Above Critical Threshold. Progressive power derate with increasing time after alert.
ECU 105 03 153 2 Warning Intake Manifold Temperature Voltage High. Possibly white smoke, fan will stay on.
ECU 105 04 154 2 Warning Intake Manifold Temperature Voltage Low. Possibly white smoke, fan will stay on.
ECU 108 02 295 2 Warning Ambient Air Pressure Error. Engine will run derated.
ECU 108 03 221 2 Warning Ambient Air Pressure Voltage High . Hard starting, low power, rough idle or white smoke.
ECU 108 04 222 2 Warning Ambient Air Pressure Voltage Low. Derate in power output of the engine.
ECU 110 00 151 1 Stop Engine Coolant Temperature Above Critical Threshold. Progressive power derate with increasing time after alert.
ECU 110 03 144 2 Warning Engine Coolant Temperature Voltage High. Possibly white smoke, fan will stay on.
ECU 110 04 145 2 Warning Engine Coolant Temperature Voltage Low. Possibly white smoke, fan will stay on.
ECU 111 01 235 1 Stop Coolant Level. Progressive power derate with increasing time after alert.
ECU 111 02 422 2 Warning Coolant Level Voltage High / Low. No engine protection for coolant level.
ECU 157 03 451 2 Warning Front Rail Pressure Sensor Voltage High. Engine will run derated.
ECU 157 04 452 2 Warning Front Rail Pressure Sensor Voltage Low. Engine will run derated.
ECU 157 07 755 2 Warning Front Three Cylinders Incorrect Fueling. Engine will misfire.
ECU 157 16 553 2 Warning Front Three Cylinders Rail Pressure High. Engine will return to idle speed.
ECU 157 18 559 2 Warning Front Three Cylinders Rail Pressure Low. Low power or rough idle.
ECU 166 02 951     Power Imbalance Between Cylinders. Engine may have rough idle or misfire.
ECU 168 16 442 2 Warning Battery Voltage Low. None on performance.
ECU 168 18 441 2 Warning Battery Voltage High. Possibly no noticeable performance effect, or possibility of rough idle.
ECU 175 00 214 1 Stop Engine Oil Temperature Above Critical Threshold. Progressive power derate with increasing time after alert.
ECU 175 03 212 2 Warning Engine Oil Temperature Voltage High. No engine protection for oil temperature.
ECU 175 04 213 2 Warning Engine Oil Temperature Voltage Low. No engine protection for oil temperature.

 

OUZXMAG,0001D3E -19-25AUG04-2/4

ECU - Engine Control Unit Diagnostic Trouble Codes / Service Fault Codes (Cummins Control Unit)
Control Unit SPN FMI SFC Pri. Indicator Light Description Effect
ECU 190 00 234 1 Stop Engine Speed Signal High. Fuel shutoff valve closes until engine speed falls to 2300 rpm.
ECU 190 02 115 1 Stop No Engine Speed Signal. Engine may take longer to start.
ECU 190 10 121 2 Warning Engine Speed. Hard starting, low power, rough idle or white smoke.
ECU 620 03 227 2 Warning Voltage Supply High. Engine will run derated.
ECU 620 04 187 2 Warning Voltage Supply Low. Engine will run derated.
ECU 627 02 434 2 Warning Power Supply. Possibly no noticeable performance effect, or possibility of engine dying, or others.
ECU 629 12 111 /343 1 / 2 Stop / Warning ECU Error. Engine will not start / Possibly none on performance or severe data loss.
ECU 630 02 341 2 Warning Calibration Memory. Fault information, trip information, others.
ECU 632 03 255 2 Warning Fuel Shutoff Valve Voltage High.  
ECU 632 04 254 1 Stop Fuel Shutoff Valve Voltage Low. ECU turns off fuel shutoff supply voltage. Engine will shut down.
ECU 632 07 259 2 Warning Fuel Shutoff Valve Stuck / Leaking. Engine will run derated.
ECU 633 05 378 2 Warning Fuel Control Valve #1 Current Low or Open Circuit. Engine will only run using the rear three cylinders.
ECU 633 06 379 2 Warning Fuel Control Valve #1 Current High . Engine will only run using the rear three cylinders.
ECU 635 05 394 2 Warning Timing Actuator #1 Current Low or Open Circuit. Engine will only run using the rear three cylinders.
ECU 635 06 395 2 Warning Timing Actuator #1 Current High. Engine will only run using the rear three cylinders.
ECU 639 02 426     ECU Communication Lost. None on perfomance, J1939 datalink may not operate.
ECU 639 09 285 2 Warning ECU Communication Timeframe. At least one multiplexed device will not operate properly.
ECU 639 13 286 2 Warning ECU Communication. At least one multiplexed device will not operate properly.
ECU 723 02 753 2 Warning indicates that ECU expected information from CAN-Bus but only received a portion of the necessary information. Low power or rough idle or white smoke.
ECU 723 07 731 2 Warning Camshaft and Crankshaft Sensor Misalignment .  
ECU 1043 03 387 2 Warning ECU Voltage High. Engine will only idle.

 

OUZXMAG,0001D3E -19-25AUG04-3/4

ECU - Engine Control Unit Diagnostic Trouble Codes / Service Fault Codes (Cummins Control Unit)
Control Unit SPN FMI SFC Pri. Indicator Light Description Effect
ECU 1043 04 443 / 284 2 Warning ECU Voltage Low / Crankshaft Engine Position Sensor Voltage Incorrect. Engine will only idle / Engine may not run or will run derated. Possibly hard starting, low power, white smoke.
ECU 1043 11 496 2 Warning Camshaft Engine Position Sensor Voltage Incorrect. Engine may not run, be hard to start or will run derated.
ECU 1079 03 386 2 Warning Sensor Supply Voltage High . Engine will run derated.
ECU 1079 04 352 2 Warning Sensor Supply Voltage Low. Engine will run derated.
ECU 1176 16 618 2 Warning Turbocharger Intake Restriction.  
ECU 1188 03 465 2 Warning Turbocharger Wastegate 1 Shorted High.  
ECU 1188 04 466 2 Warning Turbocharger Wastegate 1 Voltage Low. Engine will run derated
ECU 1189 03 491 2 Warning Turbocharger Wastegate 2 Shorted High.  
ECU 1189 04 492 2 Warning Turbocharger Wastegate 2 Shorted Low.  
ECU 1244 05 396 2 Warning Fuel Control Valve #2 Current Low or Open Circuit. Engine will only run using the front three cylinders.
ECU 1244 06 397 2 Warning Fuel Control Valve #2 Current High . Engine will only run using the front three cylinders.
ECU 1245 05 398 2 Warning Timing Actuator #2 Current Low or Open Circuit. Engine will only run using the front three cylinders.
ECU 1245 06 399 2 Warning Timing Actuator #2 Current High. Engine will only run using the front three cylinders.
ECU 1319 02 419 2 Warning Intake Manifold Pressure. Engine will run derated.
ECU 1349 03 483 2 Warning Rear Rail Pressure Sensor Voltage High. Engine will run derated.
ECU 1349 04 484 2 Warning Rear Rail Pressure Sensor Voltage Low. Engine will run derated.
ECU 1349 07 758 2 Warning Rear Three Cylinders Incorrect Fueling. Engine will misfire.
ECU 1349 16 485 2 Warning Rear Three Cylinders Rail Pressure High. Engine will return to idle speed.
ECU 1349 18 486 2 Warning Rear Three Cylinders Rail Pressure Low. Low power or rough idle.
ECU 1383 14 299     Engine Shutdown. No action by the ECU.

 

OUZXMAG,0001D3E -19-25AUG04-4/4