C4.4 and C6.6 Engines Caterpillar

Diagnostic Trouble Codes

Usage:

C4.4 448

Diagnostic Trouble Codes in J1939 Order

Table 1 lists the diagnostic trouble codes that apply to the engines that are covered in this manual. The codes are listed in J1939 order. Use the electronic service tool to determine the codes that are active or logged. Then refer to the appropriate troubleshooting procedure for more information.

Portions of this material are reprinted with permission from SAE J1939DA_201607^© 2016 SAE International. SAE International is not responsible for any use or translation of this material, in whole or in part. Contact SAE International to obtain a complete copy of SAE J1939DA_201607, the official definitive source of this standard.

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Table 1
List of Diagnostic Trouble Codes
J1939 Code and Description	CDL Code and Description	Troubleshooting Procedure
27-3 EGR #1 Valve Position : Voltage Above Normal	3407-3 EGR Valve Position Sensor : Voltage Above Normal	Troubleshooting, "Valve Position - Test"
27-4 EGR #1 Valve Position : Voltage Below Normal	3407-4 EGR Valve Position Sensor : Voltage Below Normal	Troubleshooting, "Valve Position - Test"
29-2 Accelerator Pedal Position #2 : Erratic, Intermittent, or Incorrect	774-2 Secondary Throttle Position Sensor : Erratic, Intermittent, or Incorrect (Engines with a throttle switch)	Troubleshooting, "Switch Circuits - Test"
29-2 Accelerator Pedal Position #2 : Erratic, Intermittent, or Incorrect	774-2 Secondary Throttle Position Sensor : Erratic, Intermittent, or Incorrect (Engines with an analog throttle)	Troubleshooting, "Speed Control (Analog) - Test"
29-3 Accelerator Pedal Position #2 : Voltage Above Normal	774-3 Secondary Throttle Position Sensor : Voltage Above Normal	Troubleshooting, "Speed Control (Analog) - Test / Speed Control (PWM) - Test"
29-4 Accelerator Pedal Position #2 : Voltage Below Normal	774-4 Secondary Throttle Position Sensor : Voltage Below Normal	Troubleshooting, "Speed Control (Analog) - Test / Speed Control (PWM) - Test"
29-8 Accelerator Pedal Position #2 : Abnormal Frequency, Pulse Width, or Period	774-8 Secondary Throttle Position Sensor : Abnormal Frequency, Pulse Width, or Period	Troubleshooting, "Speed Control (PWM) - Test"
91-2 Accelerator Pedal Position #1 : Erratic, Intermittent, or Incorrect	91-2 Throttle Position Sensor : Erratic, Intermittent, or Incorrect (Engines with a throttle switch)	Troubleshooting, "Switch Circuits - Test"
91-2 Accelerator Pedal Position #1 : Erratic, Intermittent, or Incorrect	91-2 Throttle Position Sensor : Erratic, Intermittent, or Incorrect (Engines with an analog throttle)	Troubleshooting, "Speed Control (Analog) - Test"
91-3 Accelerator Pedal Position #1 : Voltage Above Normal	91-3 Throttle Position Sensor : Voltage Above Normal	Troubleshooting, "Speed Control (Analog) - Test / Speed Control (PWM) - Test"
91-4 Accelerator Pedal Position #1 : Voltage Below Normal	91-4 Throttle Position Sensor : Voltage Below Normal	Troubleshooting, "Speed Control (Analog) - Test / Speed Control (PWM) - Test"
91-8 Accelerator Pedal Position #1 : Abnormal Frequency, Pulse Width, or Period	91-8 Throttle Position Sensor : Abnormal Frequency, Pulse Width, or Period	Troubleshooting, "Speed Control (PWM) - Test"
97-3 Water In Fuel Indicator : Voltage Above Normal	3547-3 Water in Fuel System Switch : Voltage Above Normal	Troubleshooting, "Water in Fuel - Test"
100-3 Engine Oil Pressure : Voltage Above Normal	100-3 Engine Oil Pressure Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
100-4 Engine Oil Pressure : Voltage Below Normal	100-4 Engine Oil Pressure Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
100-21 Engine Oil Pressure : Data Drifted Low	100-21 Engine Oil Pressure Sensor : Voltage Below Normal	Troubleshooting, "Sensor Supply - Test"
105-3 Engine Intake Manifold #1 Temperature : Voltage Above Normal	172-3 Intake Manifold Air Temperature Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
105-4 Engine Intake Manifold #1 Temperature : Voltage Below Normal	172-4 Intake Manifold Air Temperature Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
107-3 Engine Air Filter 1 Differential Pressure : Voltage Above Normal	582-3 Air Filter Differential Pressure Switch : Voltage Above Normal	Troubleshooting, "Switch Circuits - Test (Air Filter Restriction Switch)"
107-4 Engine Air Filter 1 Differential Pressure : Voltage Below Normal	582-4 Air Filter Differential Pressure Switch : Voltage Below Normal	Troubleshooting, "Switch Circuits - Test (Air Filter Restriction Switch)"
108-3 Barometric Pressure : Voltage Above Normal	3528-3 Barometric Pressure Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
108-4 Barometric Pressure : Voltage Below Normal	3528-4 Barometric Pressure Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
108-21 Barometric Pressure : Data Drifted Low	3528-21 Barometric Pressure Sensor : Data Drifted Low	Troubleshooting, "Sensor Supply - Test"
110-3 Engine Coolant Temperature : Voltage Above Normal	110-3 Engine Coolant Temperature Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
110-4 Engine Coolant Temperature : Voltage Below Normal	110-4 Engine Coolant Temperature Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
157-3 Engine Injector Metering Rail #1 Pressure : Voltage Above Normal	1797-3 Fuel Rail Pressure Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
157-4 Engine Injector Metering Rail #1 Pressure : Voltage Below Normal	1797-4 Fuel Rail Pressure Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
168-2 Battery Potential / Power Input #1 : Erratic, Intermittent or incorrect	168-2 Electrical System Voltage : Erratic, Intermittent or incorrect	Troubleshooting, "Electrical Power Supply - Test"
168-3 Battery Potential / Power Input #1 : Voltage Above Normal	168-3 Electrical System Voltage : Voltage Above Normal	Troubleshooting, "Electrical Power Supply - Test"
168-4 Battery Potential / Power Input #1 : Voltage Below Normal	168-4 Electrical System Voltage : Voltage Below Normal	Troubleshooting, "Electrical Power Supply - Test"
168-31 Battery Potential / Power Input #1	-	Troubleshooting, "Battery Problem"
172-3 Engine Air Inlet Temperature : Voltage Above Normal	2526-3 Air Inlet Temperature Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
172-4 Engine Air Inlet Temperature : Voltage Below Normal	2526-4 Air Inlet Temperature Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
174-3 Engine Fuel Temperature 1 : Voltage Above Normal	174-3 Fuel Temperature Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
174-4 Engine Fuel Temperature 1 : Voltage Below Normal	174-4 Fuel Temperature Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
190-8 Engine Speed : Abnormal Frequency, Pulse Width, or Period	190-8 Engine Speed Sensor : Abnormal Frequency, Pulse Width, or Period	Troubleshooting, "Speed/Timing - Test"
412-3 Engine Exhaust Gas Recirculation Temperature : Voltage Above Normal	3386-3 EGR Temperature Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
412-4 Engine Exhaust Gas Recirculation Temperature : Voltage Below Normal	3386-4 EGR Temperature Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
441-3 Auxiliary Temperature #1 : Voltage Above Normal	1836-3 Auxiliary Temperature Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
441-4 Auxiliary Temperature #1 : Voltage Below Normal	1836-4 Auxiliary Temperature Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
558-2 Accelerator Pedal #1 Low Idle Switch : Erratic, Intermittent, or Incorrect	1634-2 Idle Validation Switch #1 : Erratic, Intermittent, or Incorrect	Troubleshooting, "Idle Validation - Test"
625-9 Proprietary Data Link : Abnormal Update Rate	248-9 Cat Data Link : Not Communicating	Troubleshooting, "Data Link - Test"
625-14 Proprietary Data Link : Special Instruction	248-14 Cat Data Link : Special Instruction	Troubleshooting, "Data Link - Test"
626-5 Engine Start Enable Device 1 : Current Below Normal	2417-5 Ether Injection Control Solenoid : Current Below Normal	Troubleshooting, "Ether Starting Aid - Test"
626-6 Engine Start Enable Device 1 : Current Above Normal	2417-6 Ether Injection Control Solenoid : Current Above Normal	Troubleshooting, "Ether Starting Aid - Test"
630-2 Calibration Memory : Erratic, Intermittent, or Incorrect	268-2 Programmed Parameter Fault : Erratic, Intermittent, or Incorrect	Troubleshooting, "Configuration Parameters"
631-2 Calibration Module : Erratic, Intermittent, or Incorrect	253-2 Personality Module : Erratic, Intermittent, or Incorrect	Troubleshooting, "ECM Software - Install"
637-11 Engine Timing Sensor : Other Failure Mode	261-11 Engine Timing Offset fault	Troubleshooting, "Speed/Timing - Test"
639-9 J1939 Network #1 : Abnormal Update Rate	247-9 SAE J1939 Data Link : Abnormal Update Rate	Troubleshooting, "CAN Data Link - Test"
639-14 J1939 Network #1 : Special Instruction	247-14 SAE J1939 Data Link : Special Instruction	Troubleshooting, "Data Link Configuration Status - Test"
649-3 Engine Exhaust Back Pressure Regulator Control Command : Voltage Above Normal	3512-3 Engine Exhaust Back Pressure Regulator : Voltage Above Normal	Troubleshooting, "Motorized Valve - Test"
649-5 Engine Exhaust Back Pressure Regulator Control Command : Current Below Normal	3512-5 Engine Exhaust Back Pressure Regulator : Current Below Normal	Troubleshooting, "Motorized Valve - Test"
649-6 Engine Exhaust Back Pressure Regulator Control Command : -Current Above Normal	3512-6 Engine Exhaust Back Pressure Regulator : Current Above Normal	Troubleshooting, "Motorized Valve - Test"
651-2 Engine Injector Cylinder #01 : Erratic, Intermittent, or Incorrect	1-2 Cylinder #1 Injector : Erratic, Intermittent, or Incorrect	Troubleshooting, "Injector Data Incorrect - Test"
651-5 Engine Injector Cylinder #01 : Current Below Normal	1-5 Cylinder #1 Injector : Current Below Normal	Troubleshooting, "Injector Solenoid - Test"
651-6 Engine Injector Cylinder #01 : Current Above Normal	1-6 Cylinder #1 Injector : Current Above Normal	Troubleshooting, "Injector Solenoid - Test"
652-2 Engine Injector Cylinder #02 : Erratic, Intermittent, or Incorrect	2-2 Cylinder #2 Injector : Erratic, Intermittent, or Incorrect	Troubleshooting, "Injector Data Incorrect - Test"
652-5 Engine Injector Cylinder #02 : Current Below Normal	2-5 Cylinder #2 Injector : Current Below Normal	Troubleshooting, "Injector Solenoid - Test"
652-6 Engine Injector Cylinder #02 : Current Above Normal	2-6 Cylinder #2 Injector : Current Above Normal	Troubleshooting, "Injector Solenoid - Test"
653-2 Engine Injector Cylinder #03 : Erratic, Intermittent, or Incorrect	3-2 Cylinder #3 Injector : Erratic, Intermittent, or Incorrect	Troubleshooting, "Injector Data Incorrect - Test"
653-5 Engine Injector Cylinder #03 : Current Below Normal	3-5 Cylinder #3 Injector : Current Below Normal	Troubleshooting, "Injector Solenoid - Test"
653-6 Engine Injector Cylinder #03 : Current Above Normal	3-6 Cylinder #3 Injector : Current Above Normal	Troubleshooting, "Injector Solenoid - Test"
654-2 Engine Injector Cylinder #04 : Erratic, Intermittent, or Incorrect	4-2 Cylinder #4 Injector : Erratic, Intermittent, or Incorrect	Troubleshooting, "Injector Data Incorrect - Test"
654-5 Engine Injector Cylinder #04 : Current Below Normal	4-5 Cylinder #4 Injector : Current Below Normal	Troubleshooting, "Injector Solenoid - Test"
654-6 Engine Injector Cylinder #04 : Current Above Normal	4-6 Cylinder #4 Injector : Current Above Normal	Troubleshooting, "Injector Solenoid - Test"
655-2 Engine Injector Cylinder #05 : Erratic, Intermittent, or Incorrect (C6.6 Engine Only)	5-2 Cylinder #5 Injector : Erratic, Intermittent, or Incorrect (C6.6 Engine Only)	Troubleshooting, "Injector Data Incorrect - Test"
655-5 Engine Injector Cylinder #05 : Current Below Normal (C6.6 Engine Only)	5-5 Cylinder #5 Injector : Current Below Normal (C6.6 Engine Only)	Troubleshooting, "Injector Solenoid - Test"
655-6 Engine Injector Cylinder #05 : Current Above Normal (C6.6 Engine Only)	5-6 Cylinder #5 Injector : Current Above Normal (C6.6 Engine Only)	Troubleshooting, "Injector Solenoid - Test"
656-2 Engine Injector Cylinder #06 : Erratic, Intermittent, or Incorrect (C6.6 Engine Only)	6-2 Cylinder #6 Injector : Erratic, Intermittent, or Incorrect (C6.6 Engine Only)	Troubleshooting, "Injector Data Incorrect - Test"
656-5 Engine Injector Cylinder #06 : Current Below Normal (C6.6 Engine Only)	6-5 Cylinder #6 Injector : Current Below Normal (C6.6 Engine Only)	Troubleshooting, "Injector Solenoid - Test"
656-6 Engine Injector Cylinder #06 : Current Above Normal (C6.6 Engine Only)	6-6 Cylinder #6 Injector : Current Above Normal (C6.6 Engine Only)	Troubleshooting, "Injector Solenoid - Test"
676-6 Engine Glow Plug Relay : Current Above Normal	2246-6 Glow Plug Start Aid Relay : Current Above Normal	Troubleshooting, "Glow Plug Starting Aid - Test"
677-5 Engine Starter Motor Relay : Current Below Normal	444-5 Starter Motor Relay : Current Below Normal	Troubleshooting, "Relay - Test (Start Relay)"
677-6 Engine Starter Motor Relay : Current Above Normal	444-6 Starter Motor Relay : Current Above Normal	Troubleshooting, "Relay - Test (Start Relay)"
678-3 ECU 8 Volts DC Supply : Voltage Above Normal	41-3 8 Volt DC Supply : Voltage Above Normal	Troubleshooting, "Sensor Supply - Test"
678-4 ECU 8 Volts DC Supply : Voltage Below Normal	41-4 8 Volt DC Supply : Voltage Below Normal	Troubleshooting, "Sensor Supply - Test"
723-8 Engine Speed Sensor #2 : Abnormal Frequency, Pulse Width, or Period	342-8 Secondary Engine Speed Sensor : Abnormal Frequency, Pulse Width, or Period	Troubleshooting, "Speed/Timing - Test"
1075-5 Engine Electric Lift Pump for Engine Fuel Supply : Current Below Normal	3666-5 Engine Fuel Supply Lift Pump Relay : Current Below Normal	Troubleshooting, "Fuel Transfer Pump - Test"
1075-6 Engine Electric Lift Pump for Engine Fuel Supply : Current Above Normal	3666-6 Engine Fuel Supply Lift Pump Relay : Current Above Normal	Troubleshooting, "Fuel Transfer Pump - Test"
1076-5 Engine Fuel Injection Pump Fuel Control Valve : Current Below Normal	18-5 Fuel Control Valve : Current Below Normal	Troubleshooting, "Solenoid Valve - Test"
1076-6 Engine Fuel Injection Pump Fuel Control Valve : Current Above Normal	18-6 Fuel Control Valve : Current Above Normal	Troubleshooting, "Solenoid Valve - Test"
1188-3 Engine Turbocharger #1 Wastegate Drive : Voltage Above Normal	526-3 Turbo Wastegate Drive : Voltage Above Normal	Troubleshooting, "Solenoid Valve - Test"
1188-5 Engine Turbocharger #1 Wastegate Drive : Current Below Normal	526-5 Turbo Wastegate Drive : Current Below Normal	Troubleshooting, "Solenoid Valve - Test"
1188-6 Engine Turbocharger #1 Wastegate Drive : Current Above Normal	526-6 Turbo Wastegate Drive : Current Above Normal	Troubleshooting, "Solenoid Valve - Test"
1196-2 Anti-theft Component Status States : Erratic, Intermittent, or Incorrect	1639-2 Machine Security System Module : Erratic, Intermittent, or Incorrect	Troubleshooting, "CAN Data Link - Test"
1196-9 Anti-theft Component Status States : Abnormal Update Rate	1639-9 Machine Security System Module : Abnormal Update Rate	Troubleshooting, "CAN Data Link - Test"
1231-9 J1939 Network #2 : Abnormal Update Rate	2348-9 SAE J1939 Data Link #2 : Abnormal Update Rate	Troubleshooting, "CAN Data Link - Test"
1231-14 J1939 Network #2 : Special Instruction	2348-14 SAE J1939 Data Link #2 : Special Instruction	Troubleshooting, "Data Link Configuration Status - Test"
2630-3 Engine Charge Air Cooler Outlet Temperature : Voltage Above Normal	3372-3 Engine Charge Air Cooler #1 Outlet Temperature Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
2630-4 Engine Charge Air Cooler Outlet Temperature : Voltage Below Normal	3372-4 Engine Charge Air Cooler #1 Outlet Temperature Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
2791-3 Engine Exhaust Gas Recirculation (EGR) Valve Control : Voltage Above Normal	3405-3 EGR Valve Control : Voltage Above Normal	Troubleshooting, "Motorized Valve - Test"
2791-5 Engine Exhaust Gas Recirculation (EGR) Valve Control : Current Below Normal	3405-5 EGR Valve Control : Current Below Normal	Troubleshooting, "Motorized Valve - Test"
2791-6 Engine Exhaust Gas Recirculation (EGR) Valve Control : Current Above Normal	3405-6 EGR Valve Control : Current Above Normal	Troubleshooting, "Motorized Valve - Test"
2882-2 Engine Alternate Rating Select : Erratic, Intermittent, or Incorrect	1743-2 Engine Operation Mode Selector Switch : Erratic, Intermittent, or Incorrect	Troubleshooting, "Mode Selection - Test"
2970-2 Accelerator Pedal #2 Low Idle Switch : Erratic, Intermittent, or Incorrect	774-0 Secondary Throttle Position Sensor : High	Troubleshooting, "Idle Validation - Test"
2970-2 Accelerator Pedal #2 Low Idle Switch : Erratic, Intermittent, or Incorrect	1635-2 Idle Validation Switch #2 : Erratic, Intermittent, or Incorrect	Troubleshooting, "Idle Validation - Test"
3242-3 Aftertreatment #1 DPF Intake Gas Temperature : Voltage Above Normal	2452-3 DPF #1 Intake Temperature Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3242-4 Aftertreatment #1 DPF Intake Gas Temperature : Voltage Below Normal	2452-4 DPF #1 Intake Temperature Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3358-3 Engine Exhaust Gas Recirculation Inlet Pressure : Voltage Above Normal	3385-3 EGR Intake Pressure Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3358-4 Engine Exhaust Gas Recirculation Inlet Pressure : Voltage Below Normal	3385-4 EGR Intake Pressure Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3358-13 Engine Exhaust Gas Recirculation Inlet Pressure : Out of Calibration	3385-13 EGR Intake Pressure Sensor : Out of Calibration	Troubleshooting, "Sensor Calibration Required - Test"
3358-21 Engine Exhaust Gas Recirculation Inlet Pressure : Data Drifted Low	3385-21 EGR Intake Pressure Sensor : Data Drifted Low	Troubleshooting, "Sensor Supply - Test"
3509-3 Sensor Supply Voltage 1 : Voltage Above Normal	262-3 5 Volt Sensor DC Power Supply : Voltage Above Normal	Troubleshooting, "Sensor Supply - Test"
3509-4 Sensor Supply Voltage 1 : Voltage Below Normal	262-4 5 Volt Sensor DC Power Supply : Voltage Below Normal	Troubleshooting, "Sensor Supply - Test"
3510-3 Sensor Supply Voltage 2 : Voltage Above Normal	2131-3 5 Volt Sensor DC Power Supply #2 : Voltage Above Normal	Troubleshooting, "Sensor Supply - Test"
3510-4 Sensor Supply Voltage 2 : Voltage Below Normal	2131-4 5 Volt Sensor DC Power Supply #2 : Voltage Below Normal	Troubleshooting, "Sensor Supply - Test"
3563-3 Engine Intake Manifold #1 Absolute Pressure : Voltage Above Normal	1785-3 Intake Manifold Pressure Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3563-4 Engine Intake Manifold #1 Absolute Pressure : Voltage Below Normal	1785-4 Intake Manifold Pressure Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3563-13 Engine Intake Manifold #1 Absolute Pressure : Out of Calibration	1785-13 Intake Manifold Pressure Sensor : Out of Calibration	Troubleshooting, "Sensor Calibration Required - Test"
3563-21 Engine Intake Manifold #1 Absolute Pressure : Data Drifted Low	1785-21 Intake Manifold Pressure Sensor : Data Drifted Low	Troubleshooting, "Sensor Supply - Test"
4212-5 Fan Drive Bypass Command Status : Current Below Normal	291-5 Engine Cooling Fan Solenoid : Current Below Normal	Troubleshooting, "Cooling Fan Control - Test"
4212-6 Fan Drive Bypass Command Status : Current Above Normal	291-6 Engine Cooling Fan Solenoid : Current Above Normal	Troubleshooting, "Cooling Fan Control - Test"
4214-5 Engine Fan Reverse Actuator : Current Below Normal	485-5 Engine Fan Reversing Solenoid : Current Below Normal	Troubleshooting, "Cooling Fan Reversing - Test"
4214-6 Engine Fan Reverse Actuator : Current Above Normal	485-6 Engine Fan Reversing Solenoid : Current Above Normal	Troubleshooting, "Cooling Fan Reversing - Test"
4215-3 Ground Level Shutdown Activated : Voltage Above Normal	267-3 Remote Shutdown Input : Voltage Above Normal	Troubleshooting, "Shutdown (Ground Level) - Test"
4215-4 Ground Level Shutdown Activated : Voltage Below Normal	267-4 Remote Shutdown Input : Voltage Below Normal	Troubleshooting, "Shutdown (Ground Level) - Test"
4783-3 DPF #1 Mean Soot Signal : Voltage Above Normal	3397-3 DPF #1 Soot Loading Sensor : Voltage Above Normal	Troubleshooting, "Soot Sensor - Test"
4783-4 DPF #1 Mean Soot Signal : Voltage Below Normal	3397-4 DPF #1 Soot Loading Sensor : Voltage Below Normal	Troubleshooting, "Soot Sensor - Test"
4783-9 DPF #1 Mean Soot Signal : Abnormal Update Rate	3397-9 DPF #1 Soot Loading Sensor : Abnormal Update Rate	Troubleshooting, "Soot Sensor - Test"
4783-12 DPF #1 Mean Soot Signal : Failure	3397-12 DPF #1 Soot Loading Sensor : Failure	Troubleshooting, "Soot Sensor - Test"
4783-13 DPF #1 Mean Soot Signal : Calibration Required	3397-13 DPF #1 Soot Loading Sensor : Calibration Required	Troubleshooting, "Soot Sensor - Test"
4783-21 DPF #1 Mean Soot Signal : Data Drifted Low	3397-21 DPF #1 Soot Loading Sensor : Data Drifted Low	Troubleshooting, "Soot Sensor - Test"
5019-3 Engine Exhaust Gas Recirculation Outlet Pressure : Voltage Above Normal	3511-3 Engine Exhaust Gas Recirculation Outlet Pressure Sensor : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
5019-4 Engine Exhaust Gas Recirculation Outlet Pressure : Voltage Below Normal	3511-4 Engine Exhaust Gas Recirculation Outlet Pressure Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
5019-13 Engine Exhaust Gas Recirculation Outlet Pressure : Calibration Required	3511-13 Engine Exhaust Gas Recirculation Outlet Pressure Sensor : Calibration Required	Troubleshooting, "Sensor Calibration Required - Test"
5019-21 Engine Exhaust Gas Recirculation Outlet Pressure : Data Drifted Low	3511-21 Engine Exhaust Gas Recirculation Outlet Pressure Sensor : Data Drifted Low	Troubleshooting, "Sensor Supply - Test"
5576-2 Aftertreatment #1 Identification : Erratic, Intermittent, or Incorrect	3468-2 Aftertreatment #1 Identification Number Module : Erratic, Intermittent, or Incorrect	Troubleshooting, "Aftertreatment Identification Module - Test"
5576-8 Aftertreatment #1 Identification : Abnormal Frequency, Pulse Width, or Period	3468-8 Aftertreatment #1 Identification Number Module : Abnormal Frequency, Pulse Width, or Period	Troubleshooting, "Aftertreatment Identification Module - Test"
5576-14 Aftertreatment #1 Identification : Special Instruction	3468-14 Aftertreatment #1 Identification Number Module : Special Instruction	Troubleshooting, "Data Link Configuration Status - Test"
5625-3 Engine Exhaust Back Pressure Regulator Position : Voltage Above Normal	3513-3 Engine Exhaust Back Pressure Regulator Valve Position Sensor : Voltage Above Normal	Troubleshooting, "Valve Position - Test"
5625-4 Engine Exhaust Back Pressure Regulator Position : Voltage Below Normal	3513-4 Engine Exhaust Back Pressure Regulator Valve Position Sensor : Voltage Below Normal	Troubleshooting, "Valve Position - Test"

Diagnostic Trouble Codes in Cat Data Link (CDL) Code Order

Table 2 lists the diagnostic trouble codes that apply to the engines that are covered in this manual. The codes are listed in CDL code order. Use the electronic service tool to determine the codes that are active or logged. Then refer to the appropriate troubleshooting procedure for more information.

Show/hide table

Table 2
List of Diagnostic Trouble Codes
CDL Code and Description	J1939 Code and Description	Troubleshooting Procedure
1-2 Cylinder #1 Injector : Erratic, Intermittent, or Incorrect	651-2 Engine Injector Cylinder #01 : Erratic, Intermittent, or Incorrect	Troubleshooting, "Injector Data Incorrect - Test"
1-5 Cylinder #1 Injector : Current Below Normal	651-5 Engine Injector Cylinder #01 : Current Below Normal	Troubleshooting, "Injector Solenoid - Test"
1-6 Cylinder #1 Injector : Current Above Normal	651-6 Engine Injector Cylinder #01 : Current Above Normal	Troubleshooting, "Injector Solenoid - Test"
2-2 Cylinder #2 Injector : Erratic, Intermittent, or Incorrect	652-2 Engine Injector Cylinder #02 : Erratic, Intermittent, or Incorrect	Troubleshooting, "Injector Data Incorrect - Test"
2-5 Cylinder #2 Injector : Current Below Normal	652-5 Engine Injector Cylinder #02 : Current Below Normal	Troubleshooting, "Injector Solenoid - Test"
2-6 Cylinder #2 Injector : Current Above Normal	652-6 Engine Injector Cylinder #02 : Current Above Normal	Troubleshooting, "Injector Solenoid - Test"
3-2 Cylinder #3 Injector : Erratic, Intermittent, or Incorrect	653-2 Engine Injector Cylinder #03 : Erratic, Intermittent, or Incorrect	Troubleshooting, "Injector Data Incorrect - Test"
3-5 Cylinder #3 Injector : Current Below Normal	653-5 Engine Injector Cylinder #03 : Current Below Normal	Troubleshooting, "Injector Solenoid - Test"
3-6 Cylinder #3 Injector : Current Above Normal	653-6 Engine Injector Cylinder #03 : Current Above Normal	Troubleshooting, "Injector Solenoid - Test"
4-2 Cylinder #4 Injector : Erratic, Intermittent, or Incorrect	654-2 Engine Injector Cylinder #04 : Erratic, Intermittent, or Incorrect	Troubleshooting, "Injector Data Incorrect - Test"
4-5 Cylinder #4 Injector : Current Below Normal	654-5 Engine Injector Cylinder #04 : Current Below Normal	Troubleshooting, "Injector Solenoid - Test"
4-6 Cylinder #4 Injector : Current Above Normal	654-6 Engine Injector Cylinder #04 : Current Above Normal	Troubleshooting, "Injector Solenoid - Test"
5-2 Cylinder #5 Injector : Erratic, Intermittent, or Incorrect (C6.6 Engine Only)	655-2 Engine Injector Cylinder #05 : Erratic, Intermittent, or Incorrect (C6.6 Engine Only)	Troubleshooting, "Injector Data Incorrect - Test"
5-5 Cylinder #5 Injector : Current Below Normal (C6.6 Engine Only)	655-5 Engine Injector Cylinder #05 : Current Below Normal (C6.6 Engine Only)	Troubleshooting, "Injector Solenoid - Test"
5-6 Cylinder #5 Injector : Current Above Normal (C6.6 Engine Only)	655-6 Engine Injector Cylinder #05 : Current Above Normal (C6.6 Engine Only)	Troubleshooting, "Injector Solenoid - Test"
6-2 Cylinder #6 Injector : Erratic, Intermittent, or Incorrect (C6.6 Engine Only)	656-2 Engine Injector Cylinder #06 : Erratic, Intermittent, or Incorrect (C6.6 Engine Only)	Troubleshooting, "Injector Data Incorrect - Test"
6-5 Cylinder #6 Injector : Current Below Normal (C6.6 Engine Only)	656-5 Engine Injector Cylinder #06 : Current Below Normal (C6.6 Engine Only)	Troubleshooting, "Injector Solenoid - Test"
6-6 Cylinder #6 Injector : Current Above Normal (C6.6 Engine Only)	656-6 Engine Injector Cylinder #06 : Current Above Normal (C6.6 Engine Only)	Troubleshooting, "Injector Solenoid - Test"
18-5 Fuel Control Valve : Current Below Normal	1076-5 Engine Fuel Injection Pump Fuel Control Valve : Current Below Normal	Troubleshooting, "Solenoid Valve - Test"
18-6 Fuel Control Valve : Current Above Normal	1076-6 Engine Fuel Injection Pump Fuel Control Valve : Current Above Normal	Troubleshooting, "Solenoid Valve - Test"
41-3 8 Volt DC Supply : Voltage Above Normal	678-3 ECU 8 Volts DC Supply : Voltage Above Normal	Troubleshooting, "Sensor Supply - Test"
41-4 8 Volt DC Supply : Voltage Below Normal	678-4 ECU 8 Volts DC Supply : Voltage Below Normal	Troubleshooting, "Sensor Supply - Test"
91-2 Throttle Position Sensor : Erratic, Intermittent, or Incorrect	91-2 Accelerator Pedal Position #1 : Erratic, Intermittent, or Incorrect	Troubleshooting, "Switch Circuits - Test"
91-2 Throttle Position Sensor : Erratic, Intermittent, or Incorrect	91-2 Accelerator Pedal Position #1 : Erratic, Intermittent, or Incorrect	Troubleshooting, "Speed Control (Analog) - Test"
91-3 Throttle Position Sensor : Voltage Above Normal	91-3 Accelerator Pedal Position #1 : Voltage Above Normal	Troubleshooting, "Speed Control (Analog) - Test / Speed Control (PWM) - Test"
91-4 Throttle Position Sensor : Voltage Below Normal	91-4 Accelerator Pedal Position #1 : Voltage Below Normal	Troubleshooting, "Speed Control (Analog) - Test / Speed Control - Test (PWM)"
91-8 Throttle Position Sensor : Abnormal Frequency, Pulse Width, or Period	91-8 Accelerator Pedal Position #1 : Abnormal Frequency, Pulse Width, or Period	Troubleshooting, "Speed Control (PWM) - Test"
100-3 Engine Oil Pressure Sensor : Voltage Above Normal	100-3 Engine Oil Pressure : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
100-4 Engine Oil Pressure Sensor : Voltage Below Normal	100-4 Engine Oil Pressure : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
100-21 Engine Oil Pressure Sensor : Data Drifted Low	100-21 Engine Oil Pressure : Data Drifted Low	Troubleshooting, "Sensor Supply - Test"
110-3 Engine Coolant Temperature Sensor : Voltage Above Normal	110-3 Engine Coolant Temperature : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
110-4 Engine Coolant Temperature : Voltage Below Normal	110-4 Engine Coolant Temperature Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
168-2 Electrical System Voltage : Erratic, Intermittent or Incorrect	168-2 Battery Potential / Power Input #1 : Erratic, Intermittent or Incorrect	Troubleshooting, "Electrical Power Supply - Test"
168-3 Electrical System Voltage : Voltage Above Normal	168-3 Battery Potential / Power Input #1 : Voltage Above Normal	Troubleshooting, "Electrical Power Supply - Test"
168-4 Electrical System Voltage : Voltage Below Normal	168-4 Battery Potential / Power Input #1 : Voltage Below Normal	Troubleshooting, "Electrical Power Supply - Test"
172-3 Intake Manifold Air Temperature Sensor : Voltage Above Normal	105-3 Engine Intake Manifold #1 Temperature : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
172-4 Intake Manifold Air Temperature Sensor : Voltage Below Normal	105-4 Engine Intake Manifold #1 Temperature : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
174-3 Fuel Temperature Sensor : Voltage Above Normal	174-3 Engine Fuel Temperature 1 : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
174-4 Engine Fuel Temperature 1 : Voltage Below Normal	174-4 Fuel Temperature Sensor : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
190-8 Engine Speed Sensor : Abnormal Frequency, Pulse Width, or Period	190-8 Engine Speed : Abnormal Frequency, Pulse Width, or Period	Troubleshooting, "Speed/Timing - Test"
246-9 Proprietary CAN Data Link : Abnormal Update Rate	-	Troubleshooting, "CAN Data Link - Test"
246-14 Proprietary CAN Data Link : Special Instruction	-	Troubleshooting, "Data Link Configuration Status - Test"
247-9 SAE J1939 Data Link : Abnormal Update Rate	639-9 J1939 Network #1 : Abnormal Update Rate	Troubleshooting, "Data Link - Test"
247-14 SAE J1939 Data Link : Special Instruction	639-14 J1939 Network #1 : Special Instruction	Troubleshooting, "Data Link Configuration Status - Test"
248-9 CAT Data Link Not Communicating	625-9 Proprietary Data Link : Abnormal Update Rate	Troubleshooting, "CAN Data Link - Test"
248-14 CAT Data Link : Special Instruction	625-14 Proprietary Data Link : Special Instruction	Troubleshooting, "Data Link Configuration Status - Test"
253-2 Personality Module : Erratic, Intermittent or Incorrect	631-2 Calibration Module : Erratic, Intermittent or Incorrect	Troubleshooting, "ECM Software - Install"
261-11 Engine Timing Offset fault	637-11 Engine Timing Sensor : Other Failure Mode	Troubleshooting, "Speed/Timing - Test"
262-3 5 Volt Sensor DC Power Supply : Voltage Above Normal	3509-3 Sensor Supply Voltage 1 : Voltage Above Normal	Troubleshooting, "Sensor Supply - Test"
262-4 5 Volt Sensor DC Power Supply : Voltage Below Normal	3509-4 Sensor Supply Voltage 1 : Voltage Below Normal	Troubleshooting, "Sensor Supply - Test"
267-3 Remote Shutdown Input : Voltage Above Normal	4215-3 Ground Level Shutdown Activated : Voltage Above Normal	Troubleshooting, "Shutdown (Ground Level) - Test"
267-4 Remote Shutdown Input : Voltage Below Normal	4215-4 Ground Level Shutdown Activated : Voltage Below Normal	Troubleshooting, "Shutdown (Ground Level) - Test"
268-2 Programmed Parameter Fault : Erratic, Intermittent, or Incorrect	630-2 Calibration Memory : Erratic, Intermittent, or Incorrect	Troubleshooting, "Configuration Parameters"
291-5 Engine Cooling Fan Solenoid : Current Below Normal	4212-5 Fan Drive Bypass Command Status : Current Below Normal	Troubleshooting, "Cooling Fan Control - Test"
291-6 Engine Cooling Fan Solenoid : Current Above Normal	4212-6 Fan Drive Bypass Command Status : Current Above Normal	Troubleshooting, "Cooling Fan Control - Test"
342-8 Secondary Engine Speed Sensor : Abnormal Frequency, Pulse Width, or Period	723-8 Engine Speed Sensor #2 : Abnormal Frequency, Pulse Width, or Period	Troubleshooting, "Speed/Timing - Test"
444-5 Starter Motor Relay : Current Below Normal	677-5 Engine Starter Motor Relay : Current Below Normal	Troubleshooting, "Relay - Test (Start Relay)"
444-6 Starter Motor Relay : Current Above Normal	677-6 Engine Starter Motor Relay : Current Above Normal	Troubleshooting, "Relay - Test (Start Relay)"
485-5 Engine Fan Reversing Solenoid : Current Below Normal	4214-5 Engine Fan Reverse Actuator : Current Below Normal	Troubleshooting, "Cooling Fan Reversing - Test"
485-6 Engine Fan Reversing Solenoid : Current Above Normal	4214-6 Engine Fan Reverse Actuator : Current Above Normal	Troubleshooting, "Cooling Fan Reversing - Test"
526-3 Turbo Wastegate Drive : Voltage Above Normal	1188-3 Engine Turbocharger #1 Wastegate Drive : Voltage Above Normal	Troubleshooting, "Solenoid Valve - Test"
526-5 Turbo Wastegate Drive : Current Below Normal	1188-5 Engine Turbocharger #1 Wastegate Drive : Current Below Normal	Troubleshooting, "Solenoid Valve - Test"
526-6 Turbo Wastegate Drive : Current Above Normal	1188-6 Engine Turbocharger #1 Wastegate Drive : Current Above Normal	Troubleshooting, "Solenoid Valve - Test"
544-8 Engine Cooling Fan Speed Sensor : Abnormal Frequency, Pulse Width or Period	-	Troubleshooting, "Cooling Fan Speed - Test"
582-3 Air Filter Differential Pressure Switch : Voltage Above Normal	107-3 Engine Air Filter 1 Differential Pressure : Voltage Above Normal	Troubleshooting, "Switch Circuits - Test (Air Filter Restriction Switch)"
582-4 Air Filter Differential Pressure Switch : Voltage Below Normal	107-4 Engine Air Filter 1 Differential Pressure : Voltage Below Normal	Troubleshooting, "Switch Circuits - Test (Air Filter Restriction Switch)"
774-0 Secondary Throttle Position Sensor : High	2970-2 Accelerator Pedal #2 Low Idle Switch : Erratic, Intermittent, or Incorrect	Troubleshooting, "Idle Validation - Test"
774-2 Secondary Throttle Position Sensor : Erratic, Intermittent, or Incorrect	29-2 Accelerator Pedal Position #2 : Erratic, Intermittent, or Incorrect	Troubleshooting, "Switch Circuits - Test"
774-2 Secondary Throttle Position Sensor : Erratic, Intermittent, or Incorrect	29-2 Accelerator Pedal Position #2 : Erratic, Intermittent, or Incorrect	Troubleshooting, "Speed Control (Analog) - Test"
774-3 Secondary Throttle Position Sensor : Voltage Above Normal	29-3 Accelerator Pedal Position #2 : Voltage Above Normal	Troubleshooting, "Speed Control (Analog) - Test / Speed Control (PWM) - Test"
774-4 Secondary Throttle Position Sensor : Voltage Below Normal	29-4 Accelerator Pedal Position #2 : Voltage Below Normal	Troubleshooting, "Speed Control (Analog) - Test / Speed Control (PWM) - Test"
774-8 Secondary Throttle Position Sensor : Abnormal Frequency, Pulse Width, or Period	29-8 Accelerator Pedal Position #2 : Abnormal Frequency, Pulse Width, or Period	Troubleshooting, "Speed Control (PWM) - Test"
1076-5 Engine Cooling Fan Bypass Solenoid : Current Below Normal	-	Troubleshooting, "Cooling Fan Control - Test"
1076-6 Engine Cooling Fan Bypass Solenoid : Current Above Normal	-	Troubleshooting, "Cooling Fan Control - Test"
1551-13 Engine Demand Fan System : Out of Calibration	-	Troubleshooting, "Cooling Fan - Calibrate"
1634-2 Idle Validation Switch #1 : Erratic, Intermittent, or Incorrect	558-2 Accelerator Pedal #1 Low Idle Switch : Erratic, Intermittent, or Incorrect	Troubleshooting, "Idle Validation - Test"
1639-2 Machine Security System Module : Erratic, Intermittent, or Incorrect	1196-2 Anti-theft Component Status States : Erratic, Intermittent, or Incorrect	Troubleshooting, "CAN Data Link - Test"
1639-9 Machine Security System Module : Abnormal Update Rate	1196-9 Anti-theft Component Status States : Special Instruction	Troubleshooting, "CAN Data Link - Test"
1743-2 Engine Operation Mode Selector Switch : Erratic, Intermittent, or Incorrect	2882-2 Engine Alternate Rating Select : Erratic, Intermittent, or Incorrect	Troubleshooting, "Mode Selection - Test"
1785-3 Intake Manifold Pressure Sensor : Voltage Above Normal	3563-3 Engine Intake Manifold #1 Absolute Pressure : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
1785-4 Intake Manifold Pressure Sensor : Voltage Below Normal	3563-4 Engine Intake Manifold #1 Absolute Pressure : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
1785-13 Intake Manifold Pressure Sensor : Out of Calibration	3563-13 Engine Intake Manifold #1 Absolute Pressure : Out of Calibration	Troubleshooting, "Sensor Calibration Required - Test"
1785-21 Intake Manifold Pressure Sensor : Data Drifted Low	3563-21 Engine Intake Manifold #1 Absolute Pressure : Data Drifted Low	Troubleshooting, "Sensor Supply - Test"
1797-3 Fuel Rail Pressure Sensor : Voltage Above Normal	157-3 Engine Injector Metering Rail #1 Pressure : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
1797-4 Fuel Rail Pressure Sensor : Voltage Below Normal	157-4 Engine Injector Metering Rail #1 Pressure : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
1836-3 Auxiliary Temperature Sensor : Voltage Above Normal	441-3 Auxiliary Temperature #1 : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
1836-4 Auxiliary Temperature Sensor : Voltage Below Normal	441-4 Auxiliary Temperature #1 : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
2131-3 5 Volt Sensor DC Power Supply #2 : Voltage Above Normal	3510-3 Sensor Supply Voltage 2 : Voltage Above Normal	Troubleshooting, "Sensor Supply - Test"
2131-4 5 Volt Sensor DC Power Supply #2 : Voltage Below Normal	3510-4 Sensor Supply Voltage 2 : Voltage Below Normal	Troubleshooting, "Sensor Supply - Test"
2246-6 Glow Plug Start Aid Relay : Current Above Normal	676-6 Engine Glow Plug Relay : Current Above Normal	Troubleshooting, "Glow Plug Starting Aid - Test"
2348-9 SAE J1939 Data Link #2 : Abnormal Update Rate	1231-9 J1939 Network #2 : Abnormal Update Rate	Troubleshooting, "CAN Data Link - Test"
2348-14 SAE J1939 Data Link #2 : Special Instruction	1231-14 J1939 Network #2 : Special Instruction	Troubleshooting, "Data Link Configuration Status - Test"
2417-5 Ether Injection Control Solenoid : Current Below Normal	626-5 Engine Start Enable Device 1 : Current Below Normal	Troubleshooting, "Ether Starting Aid - Test"
2417-6 Ether Injection Control Solenoid : Current Above Normal	626-6 Engine Start Enable Device 1 : Current Above Normal	Troubleshooting, "Ether Starting Aid - Test"
2452-3 DPF #1 Intake Temperature Sensor : Voltage Above Normal	3242-3 Aftertreatment #1 DPF Intake Gas Temperature : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
2452-4 DPF #1 Intake Temperature Sensor : Voltage Below Normal	3242-4 Aftertreatment #1 DPF Intake Gas Temperature : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
2526-3 Air Inlet Temperature Sensor : Voltage Above Normal	172-3 Engine Air Inlet Temperature : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
2526-4 Air Inlet Temperature Sensor : Voltage Below Normal	172-4 Engine Air Inlet Temperature : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
3372-3 Engine Charge Air Cooler #1 Outlet Temperature Sensor : Voltage Above Normal	2630-3 Engine Charge Air Cooler Outlet Temperature : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
3372-4 Engine Charge Air Cooler #1 Outlet Temperature Sensor : Voltage Below Normal	2630-4 Engine Charge Air Cooler Outlet Temperature : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
3385-3 EGR Intake Pressure Sensor : Voltage Above Normal	3358-3 Engine Exhaust Gas Recirculation Inlet Pressure : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3385-4 EGR Intake Pressure Sensor : Voltage Below Normal	3358-4 Engine Exhaust Gas Recirculation Inlet Pressure : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3385-13 EGR Intake Pressure Sensor : Out of Calibration	3358-13 Engine Exhaust Gas Recirculation Inlet Pressure : Out of Calibration	Troubleshooting, "Sensor Calibration Required - Test"
3385-21 EGR Intake Pressure Sensor : Data Drifted Low	3358-21 Engine Exhaust Gas Recirculation Inlet Pressure : Data Drifted Low	Troubleshooting, "Sensor Supply - Test"
3386-3 EGR Temperature Sensor : Voltage Above Normal	412-3 Engine Exhaust Gas Recirculation Temperature : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
3386-4 EGR Temperature Sensor : Voltage Below Normal	412-4 Engine Exhaust Gas Recirculation Temperature : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Passive) - Test"
3397-3 DPF #1 Soot Loading Sensor : Voltage Above Normal	4783-3 DPF #1 Mean Soot Signal : Voltage Above Normal	Troubleshooting, "Soot Sensor - Test"
3397-4 DPF #1 Soot Loading Sensor : Voltage Below Normal	4783-3 DPF #1 Mean Soot Signal : Voltage Above Normal	Troubleshooting, "Soot Sensor - Test"
3397-9 DPF #1 Soot Loading Sensor : Abnormal Update Rate	4783-9 DPF #1 Mean Soot Signal : Abnormal Update Rate	Troubleshooting, "Soot Sensor - Test"
3397-12 DPF #1 Soot Loading Sensor : Failure	4783-12 DPF #1 Mean Soot Signal : Failure	Troubleshooting, "Soot Sensor - Test"
3397-13 DPF #1 Soot Loading Sensor : Calibration Required	4783-13 DPF #1 Mean Soot Signal : Out of Calibration	Troubleshooting, "Soot Sensor - Test"
3397-21 DPF #1 Soot Loading Sensor : Data Drifted Low	4783-21 DPF #1 Mean Soot Signal : Data Drifted Low	Troubleshooting, "Soot Sensor - Test"
3405-3 EGR Valve Control : Voltage Above Normal	2791-3 Engine Exhaust Gas Recirculation (EGR) Valve Control : Voltage Above Normal	Troubleshooting, "Motorized Valve - Test"
3405-5 EGR Valve Control : Current Below Normal	2791-5 Engine Exhaust Gas Recirculation (EGR) Valve Control : Current Below Normal	Troubleshooting, "Motorized Valve - Test"
3405-6 EGR Valve Control : Current Above Normal	2791-6 Engine Exhaust Gas Recirculation (EGR) Valve Control : Current Above Normal	Troubleshooting, "Motorized Valve - Test"
3407-3 EGR Valve Position Sensor : Voltage Above Normal	27-3 EGR #1 Valve Position : Voltage Above Normal	Troubleshooting, "Valve Position - Test"
3407-4 EGR Valve Position Sensor : Voltage Below Normal	27-4 EGR #1 Valve Position : Voltage Below Normal	Troubleshooting, "Valve Position - Test"
3467-5 Aftertreatment #1 Identification Number Module : Erratic, Intermittent, or Incorrect	-	Refer to the troubleshooting guide for the machine
3467-6 Aftertreatment #1 Identification Number Module : Abnormal Frequency, Pulse Width, or Period	-	Refer to the troubleshooting guide for the machine
3468-2 Aftertreatment #1 Identification Number Module : Erratic, Intermittent, or Incorrect	5576-2 Aftertreatment #1 Identification : Erratic, Intermittent, or Incorrect	Troubleshooting, "Aftertreatment Identification Module - Test"
3468-8 Aftertreatment #1 Identification Number Module : Abnormal Frequency, Pulse Width, or Period	5576-8 Aftertreatment #1 Identification : Abnormal Frequency, Pulse Width, or Period	Troubleshooting, "Aftertreatment Identification Module - Test"
3468-14 Aftertreatment #1 Identification Number Module : Special Instruction	5576-14 Aftertreatment #1 Identification : Special Instruction	Troubleshooting, "Data Link Configuration Status - Test"
3511-3 Engine Exhaust Gas Recirculation Outlet Pressure Sensor : Voltage Above Normal	5019-3 Engine Exhaust Gas Recirculation Outlet Pressure : Voltage Above Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3511-4 Engine Exhaust Gas Recirculation Outlet Pressure Sensor : Voltage Below Normal	5019-4 Engine Exhaust Gas Recirculation Outlet Pressure : Voltage Below Normal	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3511-13 Engine Exhaust Gas Recirculation Outlet Pressure Sensor : Calibration Required	5019-13 Engine Exhaust Gas Recirculation Outlet Pressure : Calibration Required	Troubleshooting, "Sensor Calibration Required - Test"
3511-21 Engine Exhaust Gas Recirculation Outlet Pressure Sensor : Data Drifted Low	5019-21 Engine Exhaust Gas Recirculation Outlet Pressure : Data Drifted Low	Troubleshooting, "Sensor Supply - Test"
3512-3 Engine Exhaust Back Pressure Regulator : Voltage Above Normal	649-3 Engine Exhaust Back Pressure Regulator Control Command : Voltage Above Normal	Troubleshooting, "Motorized Valve - Test"
3512-5 Engine Exhaust Back Pressure Regulator : Current Below Normal	649-5 Engine Exhaust Back Pressure Regulator Control Command : Current Below Normal	Troubleshooting, "Motorized Valve - Test"
3512-6 Engine Exhaust Back Pressure Regulator : Current Above Normal	649-6 Engine Exhaust Back Pressure Regulator Control Command : Current Above Normal	Troubleshooting, "Motorized Valve - Test"
3513-3 Engine Exhaust Back Pressure Regulator Valve Position Sensor : Voltage Above Normal	5625-3 Engine Exhaust Back Pressure Regulator Position : Voltage Above Normal	Troubleshooting, "Valve Position - Test"
3513-4 Engine Exhaust Back Pressure Regulator Valve Position Sensor : Voltage Below Normal	5625-4 Engine Exhaust Back Pressure Regulator Position : Voltage Below Normal	Troubleshooting, "Valve Position - Test"
3528-3 Barometric Pressure Sensor : Voltage Above Normal	108-3 Barometric Pressure : Voltage Above Normal	Troubleshooting, "Sensor Supply - Test"
3528-4 Barometric Pressure Sensor : Voltage Below Normal	108-4 Barometric Pressure : Voltage Below Normal	Troubleshooting, "Sensor Supply - Test"
3528-21 Barometric Pressure Sensor : Data Drifted Low	108-21 Barometric Pressure : Data Drifted Low	Troubleshooting, "Sensor Signal (Analog, Active) - Test"
3547-3 Water in Fuel System Switch : Voltage Above Normal	97-3 Water In Fuel Indicator : Voltage Above Normal	Troubleshooting, "Water in Fuel - Test"
3666-5 Engine Fuel Supply Lift Pump Relay : Current Below Normal	1075-5 Engine Electric Lift Pump for Engine Fuel Supply : Current Below Normal	Troubleshooting, "Fuel Transfer Pump - Test"
3666-6 Engine Fuel Supply Lift Pump Relay : Current Above Normal	1075-6 Engine Electric Lift Pump for Engine Fuel Supply : Current Above Normal	Troubleshooting, "Fuel Transfer Pump - Test"