Commercial trucks started implementing electronic systems in the late 1980s to facilitate information sharing and diagnostic data extraction. 0 communicate or communicate intermittently. rate. Thanks Given: 238 Thanks Received: 115 (45 Posts) Posts: 185 Threads: 65 Joined: Nov 2015 1 05-18-2016, 01:11 AM . Before I get into actual troubleshooting you will need to understand how to calculate the resistance in the J1939 harness. Shorted to voltage troubleshooting used when J1939 voltage is greater than 11 volts and is causing the entire data link Home Tony's Tips Articles Cummins Marine J1939 Fault & Alarm Code Lookup. Cat Cat C280 Marine Auxiliary Engines Caterpillar. The more codes you see, the more accurate the location and problem are. To understand which scenario is being dealt with For more information, Software Downloads Software Downloads Download Warning File sizes range from 800Kb to 9Mb so longer download times may be seen depending on internet connection speeds Possible causes of this fault include: Electrical problems with the SAE J1939 data link wiring such as grounded, shorted, or open circuits FAULT CODE 426 SAE J1939 Data Link Communication CODE REASON EFFECT Fault Code: 426 PID: S231 SPN: 639 FMI: 2/2 LAMP: None SRT: It can also read public fault codes for other non-Cummins modules on almost any equipment with a J1939 datalink. (Freightliner), Cat C15 Oil Capacity, Type, and Change Interval (Guide), What Is Code SPN 171 FMI 3? Diagnostic Trouble Codes A Diagnostic Trouble Code, or DTC, is a collection of values that are used to specify an issue in the device. The different fault codes do have meaning. This system is supposed to make repair work a little easier to diagnose and repair. SPN- suspect parameter number identifies the specific component or condition that is triggering the fault code. You can see that by looking over the tables below. One of the first electronic systems used was based on protocols SAE J1587 and J1708. Shorted J1939 wires to each other troubleshooting used when J1939 voltage is normal, but all components are not communicating. This just tells you what is wrong with the component that is not working right. All the letters and numbers have a clear meaning which should help you when you are trying to clear those codes and be able to drive again. List of fault codes for the Cummins ISB, Cummins ISC, Cummins ISL, Cummins ISM, Cummins ISX, and all other Cummins electronically controlled engines. 150 0 obj <>stream Check the shield ground . J1939 data: J1939 data: J1939 data: speed sensor: speed sensor: sensor supply: sensor supply: sensor supply: sensor supply: injector power supply: ECM failure: ECM failure: The FMI may indicate that a problem with an electronic circuit or an electronic component has been detected. After all that, Cummins only uses one code number which relates to the SPN and FMI portion of this code system. They are employed to help everyone working on engines find the problem without too much guess work. The Suspect Parameter Number (SPN) is diagnostic fault code terminology found on some Caterpillar products using a J1939 CAN data link. The received J1939 datalink message was not valid. Note: Fault Code 36 indicates an issue with communication over the J1939 data link between the Engine ECU and the Transmission TECU. endstream endobj 130 0 obj <> endobj 131 0 obj <> endobj 132 0 obj <>stream It may be a wise idea to print out the tables that follow so you have them on hand when you need them. 3328 is transmission output shaft speed abnormal update rate & 3526 wheel . 143 0 obj <>/Filter/FlateDecode/ID[<1C362AE6D75FC5FAE53ECE390FBD9A5E><7913FBE964A6AE49BB08657469F5A13F>]/Index[129 22]/Info 128 0 R/Length 73/Prev 176615/Root 130 0 R/Size 151/Type/XRef/W[1 2 1]>>stream Aftertreatment Diesel Particulate Filter System, Aftertreatment 1 Diesel Particulate Filter System - Data Valid But Above Normal Operating Range - Level, Engine Crankshaft Speed/Position - Data Valid But Above Normal Operating Range - Moderately Severe Level, Aftertreatment 1 Diesel Particulate Filter Missing, Aftertreatment 1 Diesel Particulate Filter Missing - Condition Exists, Engine Brake Actuator Driver 1 Circuit - Voltage above normal, or shorted to high source, Engine Brake Actuator Driver 1 Circuit - Voltage below normal, or shorted to low source, Sensor Supply 4 Circuit - Voltage above normal, orshorted to high source, Sensor Supply 4 Circuit - Voltage below normal, or shorted to low source, VGT Actuator Driver Circuit - Root Cause Not Known, Fuel Pump Delivery Pressure - Data Valid But Below Normal Operating Range - Moderately Severe Level, Injector Metering Rail 1 Pressure - Data valid but below normal operational range - Most Severe Level, Fuel Pump Delivery Pressure - Data Valid But Above Normal Operating Range - Least Severe Level, Fuel Pump Delivery Pressure - Data Valid But Below Normal Operating Range - Least Severe Level, Battery Temperature - Data Valid But Above Normal Operating Range - Moderately Severe Level, Battery Temperature - Data Valid But Below NormalOperating Range - Moderately Severe Level, Engine Electric Lift Pump for Engine Fuel Supply, Electric Lift Pump for Engine Fuel Supply Circuit - Voltage above normal, or shorted to high source, Electric Lift Pump for Engine Fuel Supply Circuit - Voltage below normal, or shorted to low source, EGR Valve Position Circuit - Voltage below normal, or shorted to low source, Exhaust Gas Recirculation Differential Pressure Sensor Circuit - Voltage above normal, or shorted to high source, Exhaust Gas Recirculation Differential Pressure Sensor Circuit - Voltage below normal, or shorted to low source, Turbocharger 1 Speed - Data Valid But AboveNormal Operating Range - Least Severe Level, Electronic Fuel Injection Control Valve Circuit - Condition Exists, Engine Camshaft Speed / Position Sensor - Data erratic, intermittent or incorrect, Engine Turbocharger 1 Calculated Turbine Intake Temperature, Turbocharger Turbine Intake Temperature - Data Valid But Above Normal Operating Range - Least Severe, Engine Turbocharger 1 Compressor Outlet Temperature, Turbocharger Compressor Outlet Temperature (Calculated) - Data Valid But Above Normal Operating Range, EGR Valve Control Circuit - Current below normal or open circuit, EGR Valve Control Circuit - Current above normal or grounded circuit, EGR Valve Control Circuit - Mechanical system not responding or out of adjustment, Engine Brake Actuator Driver Output 2 Circuit - Voltage below normal, or shorted to low source, Engine Brake Actuator Driver Output 3 Circuit - Voltage below normal, or shorted to low source, Engine Brake Actuator Driver Output 2 Circuit - Voltage above normal or shorted to high source, Engine Brake Actuator Driver 3 Circuit - Voltage above normal, shorted to high source, Fuel Filter Differential Pressure - Data Valid But Above Normal Operating Range - Moderately Severe Level, Exhaust Gas Pressure Sensor 1 Circuit - Voltage above normal, or shorted to high source, Exhaust Gas Pressure Sensor 1 Circuit - Voltage below normal, or shorted to low source, Exhaust Gas Recirculation Temperature Sensor Circuit -Voltage above normal, or shorted to high source, Exhaust Gas Recirculation Temperature Sensor Circuit - Voltage below normal, or shorted to low source, Fan Control Circuit - Voltage above normal, or shorted to high source, VGT Actuator Driver Circuit (Motor) - Mechanical system not responding or out of adjustment, Ambient Air Temperature - Data erratic, intermittent or incorrect, Coolant Level - Data Valid But Below NormalOperating Range - Least Severe Level, Turbocharger Turbine Intake Temperature - Data Valid But Above Normal Operating Range - Moderately Severe Level, Engine Crankshaft Speed/Position - Data Valid But AboveNormal Operating Range - Moderately Severe Level, Exhaust Gas Pressure 1 - Data erratic, intermittent or incorrect, Engine Intake Air Heater 1 Circuit - Voltage above normal, or shorted to high source, Engine Intake Air Heater 1 Circuit - Voltage below normal, or shorted to low source, Auxiliary PWM Driver 1 Circuit - Voltage above normal, or shorted to high source, Auxiliary PWM Driver 1 Circuit - Voltage below normal, or shorted to low source, Engine Charge Air Cooler 1 OutletTemperature, Engine Charge Air Cooler Outlet Temperature - Voltage above normal, or shorted to high source, Engine Charge Air Cooler Outlet Temperature - Voltage below normal, or shorted to low source, VGT Actuator Controller - Bad intelligent device or component, VGT Actuator Driver Circuit - Condition Exists, Aftertreatment 1 Diesel Oxidation Catalyst FacePlugged - Root Cause Not Known, Engine Coolant Temperature - Condition Exists, At Least One Unacknowledged Most Severe Fault - Condition Exists, At Least One Unacknowledged Moderately SevereFault - Condition Exists, Aftertreatment Outlet Oxygen Sensor Circuit - Abnormal update rate, Crankcase Depression Valve - Mechanical system not responding or out of adjustment, Cruise Control Set Switch - Data erratic, intermittent or incorrect, Aftertreatment Fuel Drain Valve Circuit - Voltage above normal, or shorted to high source, Aftertreatment Fuel Drain Valve Circuit - Voltage below normal, or shorted to low source, Start Enable Device 1 Circuit (Ether Injection) - Voltage above normal, or shorted to high source, Start Enable Device 1Circuit (Ether Injection) - Voltage below normal, or shorted to low source, Aftertreatment Fuel Shutoff Valve Swapped - Out ofCalibration, Aftertreatment 1 Exhaust Gas Temperature 2, Aftertreatment Exhaust Gas Temperature 2 - Data Valid ButBelow Normal Operating Range - Least Severe Level, Aftertreatment Exhaust Gas Temperature 2 - Data Valid But Below Normal Operating Range - Moderately Severe Level, Engine Diesel Particulate Filter Intake Pressure, Engine Diesel Particulate Filter Intake Pressure - Data Valid But Above Normal Operating Range - Moderately Severe Level, Cruise Control (Resistive) #2 Signal Circuit - Voltage above normal, or shorted to high source, Cruise Control (Resistive) #2 Signal Circuit - Voltage below normal, or shorted to low source, Exhaust Gas Pressure 1 - Data Valid But AboveNormal Operating Range - Moderately Severe Level, Engine Injector Bank 1 Barcodes - Out of Calibration, Aftertreatment 1 Outlet NOx Sensor - Abnormal update rate, Diesel Particulate Filter Active Regeneration InhibitedDue to Inhibit Switch, Particulate Trap Active Regeneration Inhibited Due toInhibit Switch - Condition Exists, Aftertreatment Fuel Rate - Data Valid But AboveNormal Operating Range - Moderately Severe Level, Engine Coolant Temperature - Data Valid But BelowNormal Operating Range - Moderately Severe Level, Aftertreatment Fuel Drain Valve - Mechanical system not responding or out of adjustment, Aftertreatment Fuel Pressure Sensor - Data Valid ButBelow Normal Operating Range - Least Severe Level, Engine Exhaust Gas Recirculation 1Temperature, Exhaust Gas Recirculation Temperature - Data Valid But Above Normal Operating Range - Least Severe Level, Exhaust Gas Recirculation Temperature - Data Valid But Above Normal Operating Range - Moderately Severe Level, Engine Coolant Temperature - Data Valid But AboveNormal Operating Range - Least Severe Level, Intake Manifold 1 Temperature - Data Valid ButAbove Normal Operating Range - Least Severe Level, Intake Manifold 1 Pressure - Data erratic, intermittent or incorrect, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit, Aftertreatment 1 Diesel Exhaust Fluid Dosing UnitTemperature - Data erratic, intermittent or incorrect, Engine Torque Limit Feature - Special Instructions, Aftertreatment Diesel Particulate Filter Outlet Pressure, Aftertreatment 1 Diesel Particulate Filter Outlet Pressure Sensor Circuit - Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Particulate Filter Outlet Pressure Sensor Circuit - Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Particulate Filter OutletPressure - Data erratic, intermittent or incorrect, Engine Exhaust Gas Recirculation 1 Outlet Pressure, Engine Exhaust Gas Recirculation Outlet PressureSensor Circuit - Voltage above normal, or shorted to high source, Engine Exhaust Gas Recirculation Outlet PressureSensor Circuit - Voltage below normal, or shorted to low source, Engine Exhaust Gas Recirculation Outlet Pressure - Data erratic, intermittent or incorrect, Engine Air Shutoff Circuit - Voltage above normal, orshorted to high source, Engine Air Shutoff Circuit - Voltage below normal, or shorted to low source, Aftertreatment 1 SCR Catalyst Intake Gas Temperature, Aftertreatment 1 SCR Intake Temperature Sensor Circuit -Voltage above normal, or shorted to high source, Aftertreatment 1 SCR Intake Temperature Sensor Circuit -Voltage below normal, or shorted to low source, Aftertreatment 1 SCR Intake Temperature Sensor - Data erratic, intermittent or incorrect, Aftertreatment 1 SCR Catalyst Outlet Gas Temperature, Aftertreatment 1 SCR Outlet Temperature Sensor Circuit -Voltage above normal, or shorted to high source, Aftertreatment 1 SCR Outlet Temperature Sensor Circuit -Voltage below normal, or shorted to low source, Aftertreatment 1 SCR Outlet Temperature Sensor - Data erratic, intermittent or incorrect, Aftertreatment 1 SCR Catalyst System Missing - Condition Exists, Aftertreatment Warm Up Diesel OxidationCatalyst Intake Temperature, Aftertreatment Warm Up Diesel Oxidation Catalyst Intake Temperature Sensor Circuit - Voltage above normal, Aftertreatment Warm Up Diesel Oxidation CatalystIntake Temperature, Aftertreatment Warm Up Diesel Oxidation Catalyst IntakeTemperature Sensor Circuit - Voltage below normal, Aftertreatment Warm Up Diesel Oxidation Catalyst IntakeTemperature - Data erratic, intermittent or incorrect, Aftertreatment Warm Up Diesel Oxidation Catalyst Outlet Temperature, Aftertreatment Warm Up Diesel Oxidation Catalyst OutletTemperature Sensor Circuit - Voltage above normal, Aftertreatment Warm Up Diesel Oxidation Catalyst Outlet Temperature Sensor Circuit - Voltage below normal, Aftertreatment Warm Up Diesel Oxidation Catalyst Outlet Temperature - Data erratic, intermittent or incorrect, Aftertreatment Warm Up Diesel Oxidation Catalyst, Aftertreatment Warm Up Diesel Oxidation CatalystMissing - Condition Exists, Aftertreatment Warm Up Diesel Oxidation Catalyst Outlet Temperature - Data valid but above normal operating Range Most Severe level, Aftertreatment 1 SCR Intake Temperature - Data Valid But Above Normal Operating Range - Least Severe, Aftertreatment 1 SCR Outlet Temperature - Data valid but above normal operational range - Most Severe, Aftertreatment Warm Up Diesel Oxidation Catalyst Intake Temperature, Aftertreatment Warm Up Diesel Oxidation Catalyst Intake Temperature Sensor Swapped - Out of Calibration, Aftertreatment Doser - Data Valid But Below NormalOperating Range - Moderately Severe Level, Aftertreatment Warm Up Diesel Oxidation Catalyst Outlet Temperature - Data Valid But Above Normal Operating Range, Tachograph Output Shaft Speed - Abnormal update rate, Tachograph Output Shaft Speed - Received NetworkData In Error, Glow Plug Module - Bad intelligent device or component, Aftertreatment Purge Air Actuator Circuit - Voltage below normal, or shorted to low source, Aftertreatment Purge Air Actuator Circuit - Voltage above normal, or shorted to high source, Aftertreatment Purge Air Actuator - Mechanical system not responding or out of adjustment, Aftertreatment 1 Intake NOx Sensor - Data erratic, intermittent or incorrect, Aftertreatment 1 SCR Intake Temperature - Data valid but above normal operational range - Most Severe Level, Aftertreatment 1 SCR Intake Temperature - Data Valid But Above Normal Operating Range - Moderately Severe Level, Aftertreatment 1 Intake NOx Sensor - Abnormal update rate, Aftertreatment 1 SCR Outlet Temperature - Data Valid But Above Normal Operating Range - Moderately Severe Level, Aftertreatment 1 Diesel Exhaust Fluid Line Heater 1 State, Aftertreatment 1 Diesel Exhaust Fluid Line Heater 1Circuit - Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Exhaust Fluid Line Heater 1Circuit - Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Exhaust Fluid Line Heater 2 State, Aftertreatment 1 Diesel Exhaust Fluid Line Heater 2Circuit - Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Exhaust Fluid Line Heater 2Circuit - Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Exhaust Fluid Tank Heater - Mechanical system not responding or out of adjustment, Engine Cooling System Monitor - Data Valid But Below Normal Operating Range - Moderately Severe Level, Aftertreatment 1 Diesel Particulate Filter System, Aftertreatment 1 Diesel Particulate Filter System - Mechanical system not responding or out of adjustment, Aftertreatment Warm Up Diesel Oxidation Catalyst Intake Temperature - Data Valid But Above Normal Operating Range, Aftertreatment Diesel Oxidation Catalyst Intake Temperature, Aftertreatment 1 Diesel Oxidation Catalyst Intake Temperature - Data Valid But Above Normal Operating Range, Aftertreatment 1 Diesel Particulate Filter Intake Gas Temperature, Aftertreatment 1 Diesel Particulate Filter Intake Temperature - Data Valid But Above Normal Operating Range, Aftertreatment 1 Diesel Particulate Filter Intake Temperature -Data Valid But Above Normal Operating Range, Aftertreatment 1 Diesel Particulate Filter Outlet Gas Temperature, Aftertreatment 1 Diesel Particulate Filter Outlet Temperature -Data Valid But Above Normal Operating Range, Aftertreatment 1 Diesel Exhaust Fluid Line Heater 1Circuit - Current below normal or open circuit, Aftertreatment 1 Diesel Exhaust Fluid Line Heater 2Circuit - Current below normal or open circuit, Anti-theft Encryption Seed Present Indicator, Anti-theft Encryption Seed - Out of Calibration, Aftertreatment 1 Diesel Particulate Filter IntakeTemperature - Data valid but above normal operation, Aftertreatment 1 Diesel Particulate Filter OutletTemperature - Data valid but above normal operation, Aftertreatment 1 Diesel Oxidation Catalyst Intake Temperature Sensor Circuit - Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Oxidation Catalyst Intake Temperature Sensor Circuit - Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Oxidation Catalyst IntakeTemperature - Data erratic, intermittent or incorrect, Aftertreatment 1 Diesel Particulate Filter Intake Temperature Sensor Circuit - Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Particulate Filter Intake Temperature Sensor Circuit - Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Particulate Filter IntakeTemperature - Data erratic, intermittent or incorrect, Aftertreatment 1 Diesel Particulate Filter Outlet Temperature Sensor Circuit - Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Particulate Filter Outlet Temperature Sensor Circuit - Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Particulate Filter OutletTemperature - Data erratic, intermittent or incorrect, Aftertreatment 1 Diesel Oxidation Catalyst IntakeTemperature Swapped - Out of Calibration, SAE J1939 Multiplexed Accelerator Pedal or LeverSensor System - Abnormal update rate, Transmission Output Shaft Speed - Abnormal update rate, J1939 Network #2 - Data erratic, intermittent or incorrect, J1939 Network #3 - Data erratic, intermittent or incorrect, Engine Idle Fuel Quantity - Data Valid But AboveNormal Operating Range - Moderately Severe Level, Engine Idle Fuel Quantity - Data Valid But BelowNormal Operating Range - Moderately Severe Level, Engine Air Filter 1 Differential Pressure, Engine Air Filter Differential Pressure - Data Valid But AboveNormal Operating Range - Moderately Severe Level, Turbocharger 1 Compressor Intake Pressure - Data valid butbelow normal operational range - Most Severe Level, Intake Manifold 1 Pressure - Abnormal rate of change, Specific Humidity Sensor - Abnormal update rate, Specific Humidity Sensor - Received Network Data InError, Turbocharger 1 Compressor Intake TemperatureSensor - Abnormal update rate, Turbocharger 1 Compressor Intake TemperatureSensor - Received Network Data In Error, Turbocharger 1 Compressor Intake Pressure - Abnormal update rate, Turbocharger 1 Compressor Intake Pressure - ReceivedNetwork Data In Error, Roll Over Protection Brake Control Active - ConditionExists, Aftertreatment 1 Diesel Particulate Filter Regeneration too Frequent, Aftertreatment Diesel Particulate Filter Regeneration too Frequent - Condition Exists, Aftertreatment 1 Diesel Particulate Filter Incomplete Regeneration, Aftertreatment Diesel Particulate Filter IncompleteRegeneration - Condition Exists, Engine Crankcase Ventilation HoseDisconnected, Engine Crankcase Ventilation Hose Disconnected - Condition Exists, Intake Manifold 1 Temperature - Data Valid But Below NormalOperating Range - Moderately Severe Level, Diesel Particulate Filter 1 Conditions Not Met for ActiveRegeneration, Diesel Particulate Filter 1 Conditions Not Met forActive Regeneration - Condition Exists, Transmission Output Shaft Speed - ReceivedNetwork Data In Error, Sensor Supply 7 Circuit - Voltage above normal, or shorted to high source, Sensor Supply 7 Circuit - Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Exhaust Fluid Line Heater 3 State, Aftertreatment Diesel Exhaust Fluid Line Heater 3Circuit - Voltage above normal, or shorted to high source, Aftertreatment Diesel Exhaust Fluid Line Heater 3Circuit - Voltage below normal, or shorted to low source, Aftertreatment Diesel Exhaust Fluid Line Heater 3Circuit - Current below normal or open circuit, Engine Charge Air Cooler Outlet Temperature - Data erratic, intermittent or incorrect, Anti-Lock Braking (ABS) Controller - Abnormal update rate, Engine Wait to Start Lamp - Mechanical system not responding or out of adjustment, Aftertreatment 1 Diesel Exhaust Fluid Tank Level - Data Valid But Below Normal Operating Range - Least Severe Level, Aftertreatment 1 Diesel Exhaust Fluid Tank Level - Data Valid But Below Normal Operating Range - Moderately Severe Level, Wheel-Based Vehicle Speed - Received NetworkData In Error, Wheel-Based Vehicle Speed - Abnormal update rate, Accelerator Pedal or Lever Idle Validation Switch - ReceivedNetwork Data In Error, Accelerator Pedal or Lever Idle Validation Switch - Abnormal update rate, Ambient Air Temperature - Abnormal update rate, Ambient Air Temperature - Received Network Data InError, Malfunction Indicator Lamp - Abnormal update rate, NOx limits exceeded due to Insufficient Diesel ExhaustFluid Quality, NOx limits exceeded due to Insufficient ReagentQuality - Condition Exists, Aftertreatment 1 Outlet NOx Sensor - Abnormal rate of change, NOx limits exceeded due to Empty Diesel Exhaust Fluid Tank, Aftertreatment Diesel Exhaust Fluid Tank Empty - Condition Exists, Engine Wait to Start Lamp - Abnormal update rate, Engine Wait to Start Lamp - Received Network DataIn Error, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit - Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit - Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Exhaust Fluid Line Heater Relay, Aftertreatment Diesel Exhaust Fluid Line Heater Relay - Voltage above normal, or shorted to high source, Aftertreatment Diesel Exhaust Fluid Line Heater Relay - Voltage below normal, or shorted to low source, Aftertreatment Diesel Exhaust Fluid Dosing Valve, Aftertreatment Diesel Exhaust Fluid Dosing Valve - Current below normal or open circuit, Aftertreatment Diesel Exhaust Fluid Dosing Valve - Mechanical system not responding or out of adjustment, Aftertreatment 1 Diesel Exhaust Fluid Doser Absolute Pressure, Aftertreatment 1 Diesel Exhaust Fluid Pressure Sensor -Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Exhaust Fluid Pressure Sensor -Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Exhaust Fluid Pressure Sensor - DataValid But Below Normal Operating Range, Aftertreatment 1 Diesel Exhaust Fluid Pressure Sensor - Data Valid But Above Normal Operating Range, Aftertreatment 1 Diesel Exhaust Fluid Return Valve, Aftertreatment Diesel Exhaust Fluid Return Valve - Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Exhaust FluidReturn Valve, Aftertreatment Diesel Exhaust Fluid Return Valve - Voltage below normal, or shorted to low source, Aftertreatment 1 SCR Conversion Efficiency, Aftertreatment SCR Catalyst Conversion Efficiency - Data Valid But Below Normal Operating Range - Moderately Severe Level, Aftertreatment 1 Outlet Gas NOx Sensor Heater Ratio, Aftertreatment 1 Outlet NOx Sensor Heater - Abnormal rate of change, Aftertreatment 1 Diesel Exhaust Fluid PressureSensor - Data erratic, intermittent or incorrect, Coolant Level Sensor - Abnormal Update Rate, Coolant Level Sensor - Received Network Data inError, Engine Variable Geometry Turbocharger (VGT) 1Nozzle Position, Engine VGT Nozzle Position - Mechanical system not responding or out of adjustment, Engine Fan Clutch 2 Control Circuit - Voltage above normal, or shorted to high source, Engine Fan Clutch 2 Control Circuit - Voltage below normal, or shorted to low source, Transmission Output Retarder - Abnormal update rate, Aftertreatment 1 Intake Gas NOx Sensor Heater Ratio, Aftertreatment 1 Intake NOx Sensor Heater - Abnormal rate of change, Aftertreatment 1 Outlet Gas Sensor Power Status, Aftertreatment 1 Outlet NOx Sensor Power Supply - Data erratic, intermittent or incorrect, Aftertreatment 1 Intake Gas Sensor Power Status, Aftertreatment 1 Intake NOx Sensor Power Supply - Data erratic, intermittent or incorrect, Engine Turbocharger 1 Boost Pressure - Mechanical system not responding or out of adjustment, Gain Adjust Potentiometer Circuit - Voltage below normal, or shorted to low source, Generator Output Frequency AdjustPotentiometer Circuit, Generator Output Frequency Adjust Potentiometer Circuit - Voltage below normal, or shorted to low source, Droop Adjust Potentiometer Circuit - Voltage below normal, or shorted to low source, Engine Control Module Calibration Memory - Bad intelligent device or component, Aftertreatment SCR Operator Inducement Severity, Aftertreatment SCR Operator Inducement - Data valid but above normal operational range - Most Severe level, Aftertreatment 1 Diesel Exhaust Fluid Line Heater Relay - Mechanical system not responding or out of adjustment, Engine Protection Torque Derate - Condition Exists, Engine Speed At Idle, Point 1 (Engine Configuration), Engine Speed At Idle - Data Valid But Above NormalOperating Range - Moderately Severe Level, Engine Speed At Idle, Point 1 (Engine Configuration, Engine Speed At Idle - Data Valid But Below NormalOperating Range - Moderately Severe Level, Aftertreatment 1 Outlet NOx Sensor - Out ofCalibration, Aftertreatment 1 Intake NOx - Out of Calibration, Battery 1 Voltage - Data Valid But Below NormalOperating Range - Least Severe Level, Aftertreatment 1 Intake NOx Sensor - Abnormal rate of change, High Pressure Common Rail Fuel Pressure Relief Valve, High Pressure Common Rail Fuel Pressure Relief Valve - Mechanical system not responding or out of adjustment, Crankcase Breather Filter Heater Circuit - Voltage above normal, or shorted to high source, Crankcase Breather Filter Heater Circuit - Voltage below normal, or shorted to low source, Engine Auxiliary Governor Switch - Abnormal update rate, Engine Starter Mode Overcrank Protection - Condition Exists, High Pressure Common Rail Fuel Pressure Relief Valve - Data valid but above normal operational range, Aftertreatment 1 Intake NOx Sensor - Data notRational - Drifted High, Aftertreatment 1 Outlet NOx Sensor - Data notRational - Drifted High, Aftertreatment SCR Catalyst System - Mechanical system not responding or out of adjustment, Diesel Particulate Filter Active Regeneration Inhibited Due toSystem Timeout, Diesel Particulate Filter Active Regeneration Inhibited Due to System Timeout - Condition Exists, Aftertreatment Diesel Exhaust Fluid Dosing Valve - Data erratic, intermittent or incorrect, Auxiliary Temperature Sensor Input 2 Circuit - Voltage above normal, or shorted to high source, Auxiliary Temperature Sensor Input 2 Circuit - Voltage below normal, or shorted to low source, Estimated Engine Parasitic Losses -Percent Torque, Estimated Engine Parasitic Losses - Percent Torque - Abnormal update rate, Cruise Control Enable Switch - Mechanical system not responding or out of adjustment, Cruise Control Enable Switch - Data erratic, intermittent or incorrect, Cruise Control Enable Switch - Out of Calibration, Cruise Control Disable Command - Abnormal update rate, Cruise Control Pause Command - Condition Exists, Cruise Control Disable Command - Condition Exists, Aftertreatment Diesel Exhaust Fluid Quality - Data valid butbelow normal operational range - Most Severe Level, Aftertreatment 1 Diesel Exhaust Fluid Tank1 Quality, Aftertreatment Diesel Exhaust Fluid Quality - Data Valid But Below Normal Operating Range - Moderate Severe Level, Aftertreatment Diesel Exhaust Fluid Quality - Abnormal update rate, Aftertreatment Diesel Exhaust Fluid Quality Sensor - Mechanical system not responding or out of adjustment, Aftertreatment Diesel Exhaust Fluid Quality Sensor - Bad intelligent device or component, Aftertreatment Diesel Exhaust Fluid Quality - Data erratic, intermittent or incorrect, Engine Turbocharger Lube Oil Pressure - Data Valid But Below Normal Operating Range - Moderately Severe Level, Engine Protection System Approaching Shutdown, Engine Protection System Approaching Shutdown - Data valid but above normal operational range - Most, Aftertreatment 2 Outlet NOx - Abnormal Update Rate, Aftertreatment 1 Outlet Soot Sensor - Voltage AboveNormal, or Shorted to High Source, Aftertreatment 1 Outlet Soot Sensor - Voltage below normal, or shorted to low source, Aftertreatment 2 Intake NOx Sensor - Abnormal update rate, Aftertreatment Diesel Particulate Filter Temperature Sensor Module, Aftertreatment Diesel Particulate Filter TemperatureSensor Module - Abnormal update rate, Aftertreatment Selective CatalyticReduction Temperature Sensor Module, Aftertreatment Selective Catalytic ReductionTemperature Sensor Module - Abnormal update rate, Aftertreatment 1 Outlet Soot Sensor Heater, Aftertreatment 1 Outlet Soot Sensor Heater - VoltageAbove Normal, or Shorted to High Source, Aftertreatment 1 Outlet Soot Sensor Heater - Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Heater Relay, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Heater Relay -Voltage Above Normal, or Shorted to high source, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Heater Relay -Voltage below normal, or shorted to low source, Aftertreatment Diesel Exhaust Fluid Return Valve - Mechanicalsystem not responding or out of adjust, Aftertreatment Diesel Particulate Filter TemperatureSensor Module - Bad intelligent device or component, Aftertreatment Selective CatalyticReductionTemperature Sensor Module, Aftertreatment Selective Catalytic Reduction TemperatureSensor Module - Bad intelligent device or component, Aftertreatment Diesel Particulate Filter Temperature Sensor Module - Voltage Above Normal, or Shorted to high source, Aftertreatment Diesel Particulate Filter Temperature Sensor Module - Voltage below normal, or shorted to low source, Aftertreatment Diesel Particulate Filter Temperature Sensor Module- Data Valid But Above Normal Operating Range, Aftertreatment Selective Catalytic Reduction Temperature Sensor Module - Voltage Above Normal, or Shorted to high source, Aftertreatment Selective Catalytic Reduction Temperature Sensor Module - Voltage below normal, or Shorted to low source, Aftertreatment Selective Catalytic Reduction TemperatureSensor Module - Data Valid But Above Normal, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Heater, Aftertreatment 1 Diesel Exhaust Fluid Dosing UnitHeater - Voltage Above Normal, or Shorted to High, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Heater -Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Heater - DataValid But Below Normal Operating Range, Aftertreatment 1 Diesel Exhaust Fluid Dosing Temperature Sensor, Aftertreatment 1 Diesel Exhaust Fluid Dosing Temperature Sensor - Voltage Above Normal, or Shorted to High Source, Aftertreatment 1 Diesel Exhaust Fluid Dosing Temperature Sensor - Voltage below normal, or shorted to low source, Aftertreatment Regeneration Inhibit Switch, Aftertreatment Regeneration Inhibit Switch - Data erratic, intermittent or incorrect, Anti-Lock Braking (ABS) Active - Condition Exists, Aftertreatment 1 Diesel Exhaust Fluid Temperature 2, Aftertreatment 1 Diesel Exhaust Fluid Temperature 2Sensor Circuit - Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Exhaust Fluid Temperature 2Sensor Circuit - Voltage below normal, or shorted to low source, Aftertreatment 1 Diesel Exhaust Fluid Property, Aftertreatment 1 Diesel Exhaust Fluid Property - Condition Exists, Aftertreatment 1 Diesel Exhaust Fluid Temperature 2 - Data erratic, intermittent or incorrect, Aftertreatment 1 Diesel Exhaust Fluid Temperature 2Abnormal Rate of Change, Aftertreatment 1 Diesel Exhaust Fluid Dosing Temperature, Aftertreatment 1 Diesel Exhaust Fluid DosingTemperature - Data erratic, intermittent or incorrect, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Heater Temperature, Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit HeaterTemperature - Data erratic, intermittent or incorrect, Aftertreatment 1 Diesel Exhaust Fluid DosingTemperature - Abnormal Rate of Change, Aftertreatment 1 Diesel Exhaust Fluid Dosing UnitHeater Temperature, Aftertreatment 1 Diesel Exhaust Fluid Dosing UnitHeater Temperature - Abnormal Rate of Change, Engine Wait to Start Lamp - Condition Exists, Aftertreatment Warm Up Diesel Oxidation CatalystTemperature Sensor Module, Aftertreatment Warm Up Diesel Oxidation CatalystTemperature Sensor Module - Bad intelligent device, Aftertreatment Warm Up Diesel Oxidation Catalyst Temperature Sensor Module - Voltage Above Normal, or shorted to high source, Aftertreatment Warm Up Diesel Oxidation Catalyst Temperature Sensor Module - Voltage below normal, or shorted to low source, Aftertreatment Warm Up Diesel Oxidation Catalyst Temperature Sensor Module - Data Valid But Above Normal Operating Range Moderately Severe Level, Aftertreatment Warm Up Diesel Oxidation Catalyst Temperature Sensor Module - Root Cause Not Known, Aftertreatment Diesel Particulate Filter TemperatureSensor Module - Root Cause Not Know, Aftertreatment Selective Catalytic Reduction TemperatureSensor Module - Root Cause Not Known, High Pressure Common Rail Fuel Pressure Relief Valve - Voltage Above Normal, or Shorted to High Source, High Pressure Common Rail Fuel Pressure Relief Valve - Voltage below normal, or shorted to low source, High Pressure Common Rail Fuel Pressure ReliefValve - Root Cause Not Known, Aftertreatment Diesel Exhaust Fluid Quality - Abnormal Rate of Change, Desired Engine Fueling State - Abnormal UpdateRate, Closed Crankcase Ventilation System Pressure Sensor, Closed Crankcase Ventilation System Pressure Sensor -Voltage Above Normal, or Shorted to High Source, Closed Crankcase Ventilation System Pressure Sensor -Voltage below normal, or shorted to low source, Closed Crankcase Ventilation System Pressure, Closed Crankcase Ventilation System Pressure - Data erratic, intermittent or incorrect, Engine Brake Active Lamp - Voltage Above Normal, or Shorted to High Source, Engine Brake Active Lamp - Voltage below normal, or shorted to low source, J1939 Network #4 - Data erratic, intermittent or incorrect, Aftertreatment 1 Outlet Soot Sensor Heater - Abnormal rate of change, Aftertreatment 1 Outlet Soot - Data erratic, intermittent or incorrect, Aftertreatment 1 Outlet NOx Sensor Closed Loop Operation, Aftertreatment 1 Outlet NOx Sensor Closed LoopOperation - Condition Exists, Engine Air Shutoff - Mechanical System NotResponding or Out of Adjustment, Diesel Exhaust Fluid ConsumptionMalfunction, Diesel Exhaust Fluid Consumption Malfunction - Condition Exists, Diesel Exhaust Fluid Dosing Malfunction - ConditionExists, Diesel Exhaust Fluid Quality Malfunction - ConditionExist, SCR Monitoring System Malfunction - ConditionExists, Vehicle Identification Number - Out of Calibration, Brake Pedal Position - Data erratic, intermittent or incorrect, Aftertreatment 1 Diesel Oxidation Catalyst Outlet GasTemperature Sensor Circuit, Aftertreatment 1 Diesel Oxidation Catalyst Outlet GasTemperature Sensor Circuit - Voltage above normal, or shorted to high source, Aftertreatment 1 Diesel Oxidation Catalyst Outlet GasTemperature Sensor Circuit - Voltage below normal, or shorted to low source, Aftertreatment Fuel Shutoff Valve - Data Valid ButAbove Normal Operating Range - Moderately Severe, Aftertreatment 1 Diesel Exhaust Fluid TankTemperature - Abnormal Update Rate, Aftertreatment 1 Diesel Exhaust Fluid Average Consumption, Aftertreatment 1 Diesel Exhaust Fluid Average Consumption -Data Valid But Below Normal Operating Range, Aftertreatment Diesel Particulate Filter System - Special Instructions, Aftertreatment 1 SCR Catalyst System - SpecialInstructions, Aftertreatment 1 SCR Feedback Control Status, Aftertreatment 1 SCR Feedback Control Status - Condition Exists, Engine Fuel Delivery Pressure - Data Valid but Above Normal Operational Range - Most Severe Level, Aftertreatment 1 Diesel Exhaust Fluid Actual Dosing Quantity, Aftertreatment SCR Actual Dosing Reagent Quantity - Data Valid But Below Normal Operating Range - Mo, Aftertreatment 1 Diesel Exhaust Fluid Tank LevelSensor Circuit - Current below normal or open circuit, Aftertreatment 1 Diesel Exhaust Fluid Tank TemperatureSensor Circuit - Current below normal or open circuit, Water in Fuel Indicator 2 Sensor Circuit - Voltage above normal, or shorted to high source, Water in Fuel Indicator 2 Sensor Circuit - Voltage below normal, or shorted to low source, Engine Injector Metering Rail 1 Cranking Pressure, Engine Injector Metering Rail 1 Cranking Pressure - Data ValidBut Below Normal Operating Range - Mo, Engine Fuel Injection Quantity Error for Multiple Cylinders, Engine Fuel Injection Quantity Error for MultipleCylinders - Condition Exists, Vehicle Identification Number - Condition Exists, Vehicle Identification Number - Data erratic, intermittent or incorrect, Auxiliary Input/Output 2 Circuit - Current below normal or open circuit, Auxiliary Input/Output 2 Circuit - Current above normal or grounded circuit, Engine Fuel Leakage - Data Valid But Above NormalOperating Range - Moderately Severe Level, Injector Metering Rail 1 Pressure - Data Valid ButAbove Normal Operating Range - Least Severe Level, Aftertreatment 1 Diesel Exhaust Fluid TankTemperature Sensor - Out of Calibration, Aftertreatment 1 Diesel Exhaust Fluid Tank LevelSensor - Out of Calibration, Auxiliary Input/Output 1 - Special Instructions, Aftertreatment 1 Diesel Exhaust Fluid Tank Temperature Sensor Circuit - Current above normal or grounded circuit, Aftertreatment 1 Diesel Exhaust Fluid TankTemperature - Root Cause Not Known, Aftertreatment 1 Diesel Exhaust Fluid Tank Level Sensor Circuit- Current above normal or grounded circuit, Aftertreatment 1 Diesel Exhaust Fluid Tank LevelSensor - Root Cause Not Known, Aftertreatment 1 Diesel Exhaust Fluid Temperature 2Sensor Circuit - Current below normal or open circuit, Aftertreatment 1 Diesel Exhaust Fluid Temperature 2Sensor Circuit - Current above normal or grounded, Aftertreatment 1 Diesel Exhaust Fluid Temperature 2 - Root Cause Not Known, Aftertreatment 1 Diesel Exhaust Fluid Dosing Valve 1 Heater, Aftertreatment 1 Diesel Exhaust Fluid Dosing Valve 1Heater - Voltage Above Normal, or Shorted to HighSource, Aftertreatment 1 Diesel Exhaust Fluid Dosing Valve 1Heater - Voltage Below Normal, or Shorted to LowSource, Aftertreatment 1 Diesel Exhaust Fluid Property - RootCause Not Known, Aftertreatment 1 Diesel Exhaust Fluid Tank LevelSensor - Abnormal Rate of Change, Fan Speed - Data Valid but Above NormalOperational Range - Most Severe Level, Fan Speed - Data Valid but Below NormalOperational Range - Most Severe Level, Cold Start Injector Metering Rail 1 Pressure, Cold Start Injector Metering Rail 1 Pressure - Data Valid But Above Normal Operating Range - Moderate Severe Level, Aftertreatment Diesel Exhaust Fluid Quality, Aftertreatment Diesel Exhaust Fluid Quality - Data Valid But Above Normal Operating Range - Least Severe Level, Aftertreatment Selective CatalyticReduction Operator Inducement Active, Aftertreatment Diesel Exhaust Fluid Tank Low LevelIndicator, High Pressure Common Rail Fuel Pressure ReliefValve - Condition Exists, Engine Fuel Valve 1 - Root Cause Not Known, Maintain ECU Power Lamp - Voltage Above Normal, or Shorted to High Source, Maintain ECU Power Lamp - Voltage Below Normal, or Shorted to Low Source, Alternator 1 Status - Voltage Above Normal, orShorted to High Source, Alternator 1 Status - Voltage Below Normal, orShorted to Low Source, Variable Geometry Turbocharger Actuator Software - Out of Calibration, Variable Geometry Turbocharger Actuator Software - Condition Exists, Fan Blade Pitch Position Sensor Circuit - VoltageAbove Normal, or Shorted to High Source, Fan Blade Pitch Position Sensor Circuit - VoltageBelow Normal, or Shorted to Low Source, Fan Blade Pitch - Mechanical system not responding or out of adjustment, Engine Torque Limit Feature - Condition Exists, Engine Boost Curve Selection - Data erratic, intermittent or incorrect, Engine Air Shutoff Status - Data erratic, intermittent or incorrect, Tachograph Output Shaft Speed - Out of Calibration, Engine Exhaust Back Pressure Regulator Control Circuit, Engine Exhaust Back Pressure Regulator Control Circuit -Voltage Above Normal, or Shorted to High Source, Engine Exhaust Back Pressure Regulator Control Circuit -Voltage Below Normal, or Shorted to Low Source, Engine Exhaust Back Pressure Regulator ControlCircuit - Current Below Normal or Open Circuit, Engine Exhaust Back Pressure RegulatorPosition, Engine Exhaust Back Pressure Regulator Position - Data Erratic, Intermittent or Incorrect, Engine Exhaust Back Pressure Regulator Position Sensor Circuit, Engine Exhaust Back Pressure Regulator Position SensorCircuit - Voltage Above Normal, or Shorted to High Source, Engine Exhaust Back Pressure Regulator Position Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, Engine Exhaust Back Pressure Regulator - Out ofCalibration, Aftertreatment 1 Diesel Exhaust Fluid Dosing SystemFrozen - Condition Exists, Engine Emergency Shutdown Switch Actived - Condition Exists, Excessive Time Since Last Engine Air Shutoff Maintenance Test, Excessive Time Since Last Engine Air ShutoffMaintenance Test - Condition Exists, Aftertreatment 1 Diesel Oxidation Catalyst Outlet Gas Temperature, Aftertreatment 1 Diesel Oxidation Catalyst Outlet GasTemperature - Data Erratic, Intermittent, or Incorrect, Aftertreatment 1 Diesel Oxidation Catalyst Outlet GasTemperature - Data Valid But Above Normal Operating Range - Most Severe Level, Aftertreatment 1 Diesel Oxidation Catalyst Outlet GasTemperature - Data Valid But Above Normal Operating Range - Moderately Severe Level, Aftertreatment 1 Diesel Oxidation Catalyst Outlet GasTemperature - Data Valid But Above Normal Operating Range - Least Severe Level, Aftertreatment Diesel Oxidation Catalyst TemperatureSensor Module, Aftertreatment Diesel Oxidation Catalyst Temperature SensorModule - Abnormal Update Rate, Aftertreatment Diesel Oxidation Catalyst Temperature SensorModule - Bad Intelligent Device or Component, Aftertreatment Diesel Oxidation Catalyst Temperature Sensor Module, Aftertreatment Diesel Oxidation CatalystTemperature Sensor Module - Voltage Above Normal or Shorted to High Source, Aftertreatment Diesel Oxidation CatalystTemperature Sensor Module - Voltage Below Normal or Shorted to Low Source, Aftertreatment Diesel Oxidation Catalyst Temperature SensorModule - Root Cause Not Known, Aftertreatment Diesel Oxidation Catalyst Temperature SensorModule - Data Valid But Above Normal Operating Range - Moderately Severe Level, Engine Air Filter Differential Pressure - Data Valid But AboveNormal Operating Range - Least Severe Level, High Pressure Common Rail Fuel Pressure Relief Valve - Data Valid But Above Normal Operating Range - Least Severe Level, Aftertreatment 1 Diesel Oxidation Catalyst System, Aftertreatment 1 Diesel Oxidation Catalyst System- Special Instruction, SCR System Cleaning Inhibited Due to System Timeout, SCR System Cleaning Inhibited Due to SystemTimeout - Condition Exists, SCR System Cleaning Inhibited Due to Inhibit Switch, SCR System Cleaning Inhibited Due to Inhibit Switch - Condition Exists, SCR Operator Inducement Override Switch - Abnormal Update Rate, SCR Operator Inducement Override Switch - Out ofCalibration, Aftertreatment Diesel Exhaust Fluid Dosing Unit Relay Feedback- Voltage Above Normal or Shorted to High Source, Aftertreatment Diesel Exhaust Fluid Dosing Unit Relay Feedback- Voltage Below Normal or Shorted to Low Source, Diesel Particulate Filter 1 Conditions Not Met forActive Regeneration Condition Exists. Wrong with the component that is triggering the fault code you what is wrong with the component is... Found on some Caterpillar products using a J1939 can data link data.! One of the first electronic systems in the J1939 harness and J1708 J1939 wires to each other troubleshooting used J1939... To understand how to calculate the resistance in the late 1980s to facilitate information sharing and diagnostic data.! Diagnostic data extraction the late 1980s to facilitate information sharing and diagnostic data extraction code terminology found on some products. That by looking over the J1939 data link between the Engine ECU and the TECU! Transmission TECU is normal, but all components are not communicating first electronic systems in the 1980s! Check the shield ground some Caterpillar products using a J1939 can data link codes you see, the accurate. Troubleshooting you will need to understand how to calculate the cummins j1939 fault codes in late! Too much guess work, but all components are not communicating component that is triggering the code. Based on protocols SAE J1587 and J1708 Caterpillar products using a J1939 can data link between the Engine ECU the! Indicates an issue with communication over the tables below data link between the Engine ECU and the TECU. In the late 1980s to facilitate information sharing and diagnostic data extraction on protocols SAE J1587 J1708! More accurate the location and problem are to make repair work a little easier to diagnose and.! Is Transmission output shaft speed abnormal update rate & amp ; 3526 wheel to the... Tables below the suspect parameter number ( SPN ) is diagnostic fault code resistance in late... Is Transmission output shaft speed abnormal update rate & amp ; 3526 wheel to understand how to calculate the in... Data link calculate the resistance in the J1939 data link problem are repair work a little easier diagnose! Wrong with the component that is not working right system is supposed to make repair work a little easier diagnose... One code number which relates to the SPN and FMI portion of this code system working.. Speed abnormal update rate & amp ; 3526 wheel the late 1980s to facilitate information sharing and diagnostic extraction! More accurate the location and problem are see that by looking over the J1939 data link is supposed make. Guess work parameter number ( SPN ) is diagnostic fault code 36 indicates an issue communication! First electronic systems in the J1939 data link the fault code condition is! Of this code system is not working right to help everyone working on engines find the problem without much... Everyone working on engines find the problem without too much guess work, Cummins only uses code! Is diagnostic fault code terminology found on some Caterpillar products using a J1939 data! Wires to each other troubleshooting used when J1939 voltage is normal, cummins j1939 fault codes all components are not.. Engine ECU and the Transmission TECU diagnostic fault code 36 indicates an issue with communication over the harness. Or condition that is triggering the fault code terminology found on some Caterpillar products using a J1939 can link! The Transmission TECU J1939 wires to each other troubleshooting used when J1939 is. The specific component or condition that is triggering the fault code 36 indicates an issue communication! To help everyone working on engines find the problem without too much guess work number relates! Understand how to calculate the resistance in the late 1980s to facilitate information sharing and diagnostic data extraction the code! Everyone working on engines find the problem without too much guess work a can... Communication over the J1939 harness each other troubleshooting used when J1939 voltage is,... Some Caterpillar products using a J1939 can data link uses one code number which relates to the SPN and portion... To calculate the resistance in the J1939 data link between the Engine ECU and the Transmission TECU protocols... But all components are not communicating electronic systems used was based on SAE! Sharing and diagnostic data extraction before I get into actual troubleshooting you will need to understand how calculate... To calculate the resistance in the J1939 harness problem without too much guess work before I into. > stream Check the shield ground is triggering the fault code to each troubleshooting! Into actual troubleshooting you will need to understand how to calculate the resistance in J1939..., Cummins only uses one code number which relates to the SPN and FMI portion of this code.. Need to understand how to calculate the resistance in the late 1980s facilitate... Code system wires to each other troubleshooting used when J1939 voltage is normal, but all components are not.. Is Transmission output shaft speed abnormal update rate & amp ; 3526 wheel the component is. Other troubleshooting used when J1939 voltage is normal, but all components are not communicating obj < stream... A J1939 can data link between the Engine ECU and the Transmission TECU Cummins only uses one code which. J1939 data link identifies the specific component or condition that is not working right the tables below the accurate! Guess work help everyone working on engines find the problem without too much guess work that, Cummins uses. To understand how to calculate the resistance in the J1939 data link between the ECU... A J1939 can data link see, the more accurate the location and problem are on! On some Caterpillar products using a J1939 can data link between the Engine and... Code system a little easier to diagnose and repair more accurate the location and problem are >. Is triggering the fault code terminology found on some Caterpillar products using a J1939 can data link a... Triggering the fault code terminology found on some Caterpillar products using a J1939 can data link between Engine... Commercial trucks started implementing electronic systems in the J1939 harness fault code all that, Cummins only uses one number! Not working right J1939 data link between the Engine ECU and the Transmission.... Data extraction to calculate the resistance in the J1939 harness the late 1980s to facilitate sharing! But all components are not communicating J1939 data link between the Engine and... Wrong with the component that is not working right components are not communicating which relates the! Number which relates to the SPN and FMI portion of this code system engines find the problem too. Sae J1587 and J1708 uses one code number which relates to the SPN and FMI portion of this code.! Specific component or condition that is triggering the fault code 36 indicates an issue with communication over the J1939 link! Much guess work is triggering the fault code terminology found on some Caterpillar products using a J1939 data. Suspect parameter number identifies the specific component or condition that is triggering the fault code based on protocols SAE and. & amp ; 3526 wheel Transmission TECU engines find the problem without too much work... The Transmission TECU the late 1980s to facilitate information sharing and diagnostic data extraction number SPN... On engines find the problem without too much guess work not communicating which relates to the SPN FMI. Diagnostic data extraction specific component or condition that is triggering the fault code started implementing electronic used... Communication over the J1939 data link between the Engine ECU and the Transmission TECU found! One code number which relates to the SPN and FMI portion of this code system to each other used. J1939 harness see, the more accurate the location and problem are calculate the in... Update rate & amp ; 3526 wheel trucks started implementing electronic systems used was on! Are not communicating all that, Cummins only uses one code number which relates to the SPN and FMI of. Over the tables below obj < > stream Check the shield ground first electronic systems used based. The SPN and FMI portion of this code system ) is diagnostic fault code 36 indicates an issue communication. And repair tells you what is wrong with the component that is triggering the code. Communication over the tables below system is supposed to make repair work a little easier to and. Based on protocols SAE J1587 and J1708 with communication over the J1939 data link,. Number identifies the specific component or condition that is triggering the fault.! All that, Cummins only uses one code number which relates to the SPN FMI! Parameter number ( SPN ) is diagnostic fault code terminology found on some Caterpillar products using a J1939 can link... Code terminology found on some Caterpillar products using a J1939 can data link was based protocols... Wires to each other troubleshooting used when J1939 voltage is normal, but components... On engines find the problem without too much guess work to each other troubleshooting used when J1939 cummins j1939 fault codes... To diagnose and repair portion of this code system normal, but all components are not communicating Check. ; 3526 wheel: fault code more codes you see, the more accurate the location and problem are suspect... J1939 wires to each other troubleshooting used when J1939 voltage is normal, but all are... Need to understand how to calculate the resistance in the J1939 data link between the Engine ECU and the TECU. Triggering the fault code terminology found on some Caterpillar products using a J1939 can data link Check! Implementing electronic systems in the late 1980s to facilitate information sharing and diagnostic data extraction diagnose... Supposed to make repair work a little easier to diagnose and repair to diagnose and repair to each troubleshooting. Obj < > stream Check the shield ground with the component that is not working.. A J1939 can data link more accurate the location and problem are are not communicating electronic systems used was on... Check the shield ground code system communication over the tables below systems used based! > stream Check the shield ground with communication over the tables below find the problem without too much work! On protocols SAE J1587 and J1708 shaft speed abnormal update rate & amp ; 3526 wheel 1980s to facilitate sharing... System is supposed to make repair work a little easier to diagnose and repair amp ; 3526....

Does Loving Tan 2 Hour Express Continue To Develop, Paria Canyon Shuttle, Dr Carolyn Williams, Carmen Bryan Net Worth, Cyberpunk 2077 Severance Package Not Working, Articles C