C2.4 Tier 4 Final Engines for Caterpillar Built Machines Caterpillar

Table 1 lists the diagnostic trouble codes that apply to the engines that are covered in this manual. Use the Caterpillar Electronic Technician (ET) 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. Please contact SAE International to obtain a complete copy of SAE J1939DA_201607, the official definitive source of this standard.

Table 1

List of Diagnostic Trouble Codes
J1939 Code	Code Description	Procedure
100-1	Engine Oil Pressure : Low - most severe (3)	“Oil Pressure Is Low”
102-3	Intake Manifold Pressure Sensor Voltage Above Normal	“Sensor Signal (Analog, Active) - Test”
102-4	Intake Manifold Pressure Sensor Voltage Below Normal	“Sensor Signal (Analog, Active) - Test”
108-3	Atmospheric Pressure Sensor Error (High side)	“Sensor Signal (Analog, Active) - Test”
108-4	Atmospheric Pressure Sensor Error (Low side)	“Sensor Signal (Analog, Active) - Test”
110-0	Engine Coolant Temperature: High - most severe (3)	“Coolant Temperature Is High”
110-3	Coolant Temp Sensor Voltage Above Normal	“Sensor Signal (Analog, Passive) - Test”
110-4	Engine Coolant Temperature Voltage Below Normal	“Sensor Signal (Analog, Passive) - Test”
132-1	Engine Inlet Air Mass Flow Rate : Low - Most Severe (3)	“Sensor Signal (Analog, Active) - Test”
132-3	Engine Inlet Air Mass Flow Rate : Voltage Above Normal	“Sensor Signal (Analog, Active) - Test”
132-4	Engine Inlet Air Mass Flow Rate : Voltage Below Normal	“Sensor Signal (Analog, Active) - Test”
132-15	Engine Inlet Air Mass Flow Rate : High - least severe (1)	“Sensor Signal (Analog, Active) - Test”
157-0	Engine Injector Metering Rail 1 Pressure : High - Most Severe (3)	“Fuel Rail Pressure Is High”
157-3	Engine Injector Metering Rail 1 Pressure : Voltage Above Normal	“Sensor Signal (Analog, Active) - Test”
157-4	Engine Injector Metering Rail 1 Pressure : Voltage Below Normal	“Sensor Signal (Analog, Active) - Test”
168-3	Battery Potential / Power Input 1 : Voltage Above Normal	“Electrical Power Supply - Test”
168-4	Battery Potential / Power Input 1 : Voltage Below Normal	“Electrical Power Supply - Test”
171-3	Ambient Air Temperature (Mass Air Flow): Voltage Above Normal	“Sensor Signal (Analog, Passive) - Test”
171-4	Ambient Air Temperature (Mass Air Flow): Voltage Below Normal	“Sensor Signal (Analog, Passive) - Test”
172-3	Engine Air Inlet Temperature : Voltage Above Normal	“Sensor Signal (Analog, Passive) - Test”
172-4	Engine Air Inlet Temperature : Voltage Below Normal	“Sensor Signal (Analog, Passive) - Test”
190-0	Engine Speed : High - Most Severe (3)	“Engine Overspeeds”
628-2	Program Memory : Erratic, Intermittent, or Incorrect	“ECM - Replace”
633-7	Engine Fuel Actuator 1 Control Command : Not Responding Properly	“Fuel Rail Pressure Is High”
636-2	Engine Position Sensor : Erratic, Intermittent, or Incorrect (Crankshaft Position Sensor)	“Speed/Timing - Test”
636-7	Engine Position Sensor : Not Responding Properly	“Speed/Timing - Test”
636-8	Engine Position Sensor : Abnormal Frequency, Pulse Width, or Period (Camshaft Position Sensor)	“Speed/Timing - Test”
651-3	Engine Injector Cylinder 01 : Voltage Above Normal	“Injector Solenoid - Test”
652-3	Engine Injector Cylinder 02 : Voltage Above Normal	“Injector Solenoid - Test”
653-3	Engine Injector Cylinder 03 : Voltage Above Normal	“Injector Solenoid - Test”
654-3	Engine Injector Cylinder 04 : Voltage Above Normal	“Injector Solenoid - Test”
676-0	Overheat of Glow Plug Relay Driving Circuit	“Starting Aid - Test”
676–5	Open Circuit of Glow Plug Relay Driving Circuit	"Starting Aid -Test"
677-4	Ground Short of Starter Relay Driving Circuit	“Electric Power Supply - Test”
679-7	Pressure Limiter Not Open	“Fuel Rail Pressure is Low”
679-16	Rail Pressure Failure After Pressure Limiter Open	“Fuel Rail Pressure is High”
723-2	Engine Speed Sensor 2 : Erratic, Intermittent, or Incorrect (Camshaft Position Sensor)	“Speed/Timing - Test”
723-8	No Input of Camshaft Postion Sensor	“Speed/Timing - Test”
1077-2	Engine ECM Fuel Injection Pump Controller : Erratic, Intermittent, or Incorrect	“ECM - Replace”
1077-12	Common System Injector Drive Circuit Open	“Injector Solenoid - Test”
1239-1	Engine Fuel Leakage 1 : Low - Most Severe (3)	“Fuel Rail Pressure Is Low”
1347-3	Engine Fuel Pump Pressurizing Assembly 1 : Voltage Above Normal	“Solenoid Valve - Test (Suction Control Valve)”
1347-4	Engine Fuel Pump Pressurizing Assembly 1 : Voltage Below Normal (SCV)	“Solenoid Valve - Test (Suction Control Valve)”
1347-5	Engine Fuel Pump Pressurizing Assembly 1 : Voltage Below Normal (SCV)	“Solenoid Valve - Test (Suction Control Valve)”
1347-7	Engine Fuel Pump Pressurizing Assembly 1 : Not Responding Properly (SCV)	“Solenoid Valve - Test (Suction Control Valve)”
1485-2	Main Relay Locked in Closed Position	“Relay - Test (ECM Main Relay)”
3242-0	Aftertreatment 1 DPF Intake Gas Temperature : High - Most Severe (3)	“Exhaust Temperature is High”
3242-3	Aftertreatment 1 DPF Intake Gas Temperature : Voltage Above Normal	“Sensor Signal (Analog, Passive) - Test”
3242-4	Aftertreatment 1 DPF Intake Gas Temperature : Voltage Below Normal	“Sensor Signal (Analog, Passive) - Test”
3246-0	Aftertreatment 1 DPF Outlet Gas Temperature : High - Most Severe (3)	“Exhaust Gas Temperature Is High”
3246-3	Aftertreatment 1 DPF Outlet Gas Temperature : Voltage Above Normal	“Sensor Signal (Analog, Passive) - Test”
3246-4	Aftertreatment 1 DPF Outlet Gas Temperature : Voltage Below Normal	“Sensor Signal (Analog, Passive) - Test”
3251-3	Aftertreatment 1 DPF Trap Differential Pressure : Voltage Above Normal	“Sensor Signal (Analog, Active) - Test”
3251-4	Aftertreatment 1 DPF Trap Differential Pressure : Voltage Below Normal	“Sensor Signal (Analog, Active) - Test”
3252-0	Emissions Deterioration	“Exhaust Temperature Is High”
3509-3	Sensor Supply Voltage 1 : Voltage Above Normal	“Sensor Supply - Test”
3509-4	Sensor Supply Voltage 1 : Voltage Below Normal	“Sensor Supply - Test”
3510-3	Sensor Supply Voltage 2 : Voltage Above Normal	“Sensor Supply - Test”
3510-4	Sensor Supply Voltage 2 : Voltage Below Normal	“Sensor Supply - Test”
3511-3	Sensor Supply Voltage 3 : Voltage Above Normal	“Sensor Supply - Test”
3511-4	Sensor Supply Voltage 3 : Voltage Below Normal	“Sensor Supply - Test”
3701-0	DPF Status : High - most severe (3)	“DPF Regeneration Levels”
3701-15	DPF Status : High - least severe (1)	“DPF Regeneration Levels”
3701-16	DPF Status : High - moderate severity (2)	“DPF Regeneration Levels”
4765-0	Emergency Exhaust Gas Temperature High Diesel Oxidation Catalyst Inlet	“Exhaust Gas Temperature Is High”
4765-3	Aftertreatment 1 Diesel Oxidation Catalyst Intake Gas Temperature : Voltage Above Normal	“Sensor Signal (Analog, Passive) - Test”
4765-4	Aftertreatment 1 Diesel Oxidation Catalyst Intake Gas Temperature : Voltage Below Normal	“Sensor Signal (Analog, Passive) - Test”
523523-3	Common 1 TWV Actuation System Ground Short	“Injector Solenoid - Test”
523524-3	Common 2 TWV Actuation System Ground Short	“Injector Solenoid - Test”
523525-1	Injector Charge Voltage: Low	“Injector Solenoid - Test”
523527-2	ECM CPU : Erratic, Intermittent, or Incorrect	“ECM - Replace”
523535-0	Injector Charge Voltage: High	“Injector Solenoid - Test”
523538-2	QR Data Error	“Injector Data Incorrect - Test”
523538-7	QR Data Is Unwritten	“Injector Data Incorrect - Test”
523544-3	Engine Start Aid : Voltage Above Normal	“Starting Aid - Test”
523544-4	Engine Start Aid : Voltage Below Normal	“Starting Aid - Test”
523547-2	CAN Data Link : Erratic, Intermittent, or Incorrect	“Data Link - Test”
523548-2	CAN Data Link : Erratic, Intermittent, or Incorrect	“Data Link - Test”
523572-4	EGR Position Sensor Failure	“NRS Valve - Test”
523574-3	EGR Actuator Coil Low Side Driver : Voltage Above Normal	“NOx Reduction System (NRS) - Test”
523574-4	EGR Actuator Coil Low Side Driver : Voltage Below Normal	“NOx Reduction System (NRS) - Test”
523575-7	EGR Actuator : Not Responding Properly	“NOx Reduction System (NRS) - Test”
523576-2	EGR Actuator Temperature : Erratic, Intermittent, or Incorrect	“NOx Reduction System (NRS) - Test”
523577-2	EGR Actuator Temperature Sensor : Erratic, Intermittent, or Incorrect	“NOx Reduction System (NRS) - Test”
523578-2	EGR Actuator Data Link : Erratic, Intermittent, or Incorrect	“NOx Reduction System (NRS) - Test”
523580-2	Intake Throttle Feedback Error	"Motorized Valve- Test"
523582-3	Intake Throttle Lift Sensor: High	“Motorized Valve - Test”
523582-4	Intake Throttle Lift Sensor: Low	“Motorized Valve - Test”
523589-17	Low Coolant Temperature in Parked Regeneration	“Diesel Particulate Filter Regeneration Does Not Occur”
523590-16	Parked Regeneration Timed Out	“Diesel Particulate Filter Regeneration Does Not Occur”
523591-2	CAN Data Link : Erratic, Intermittent, or Incorrect	“Data Link - Test”
523592-2	CAN Data Link : Erratic, Intermittent, or Incorrect	“Data Link - Test”
523593-2	CAN Data Link : Erratic, Intermittent, or Incorrect	“Data Link - Test”
523594-2	CAN Data Link : Erratic, Intermittent, or Incorrect	“Data Link - Test”
523595-2	CAN Data Link : Erratic, Intermittent, or Incorrect	“Data Link - Test”
523596-2	CAN Data Link : Erratic, Intermittent, or Incorrect	“Data Link - Test”
523598-2	CAN Data Link : Erratic, Intermittent, or Incorrect	“Data Link - Test”
523599-0	All Exhaust Gas Temperature Sensors Failure : High - Most Severe (3)	“Sensor Signal (Analog, Passive) - Test”
523601-0	Exhaust Gas Temperature : High - Most Severe (3)	“Exhaust Gas Temperature Is High”
523602-0	High Frequency of Regeneration	“Diesel Particulate Filter Active Regeneration Is Excessive”
523603-15	Engine Coolant Temperature : High - least severe (1)	“Coolant Temperature Is High”
523604-2	CAN 1 Bus Off	“Data Link - Test”
523605-6	Internal Injector Drive Circuit Short	“Injector Solenoid - Test”
523700-13	EEPROM Checksum : Out of Calibration	“Injector Data Incorrect - Test”