G3600 A4 Engines Diagnostic Trouble Codes Caterpillar


Diagnostic Trouble Codes
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1.1. Diagnostic Codes
2.1. Active Diagnostic Codes
3.1. Logged Diagnostic Codes

Table 1 is a list of the diagnostic codes for the engine. The diagnostic codes are cross-referenced with the appropriate procedure that can be used to troubleshoot the code.

Further explanations of diagnostic codes are explained after Table 1.

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
J1939 Code and Description  Troubleshooting Procedure 
29-3
Accelerator Pedal Position 2 : Voltage Above Normal 
Troubleshooting, "Speed Control - Test" 
29-4
Accelerator Pedal Position 2 : Voltage Below Normal 
Troubleshooting, "Speed Control - Test" 
91-3
Accelerator Pedal Position 1 : Voltage Above Normal 
Troubleshooting, "Speed Control - Test" 
91-4
Accelerator Pedal Position 1 : Voltage Below Normal 
Troubleshooting, "Speed Control - Test" 
91-8
Accelerator Pedal Position 1 : Abnormal Frequency, Pulse Width, or Period 
Troubleshooting, "Speed Control - Test" 
100-3
Engine Oil Pressure : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
100-4
Engine Oil Pressure : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
101-3
Engine Crankcase Pressure : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
101-4
Engine Crankcase Pressure : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
105-3
Engine Intake Manifold #1 Temperature : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
105-4
Engine Intake Manifold #1 Temperature : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
108-3
Barometric Pressure : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
108-4
Barometric Pressure : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
109-3
Engine Coolant Pressure : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
109-4
Engine Coolant Pressure : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
110-3
Engine Coolant Temperature : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
110-4
Engine Coolant Temperature : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
158-2
Keyswitch Battery Potential : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Electrical Power Supply - Test" 
159-3
Engine Gas Supply Pressure : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
159-4
Engine Gas Supply Pressure : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
168-2
Battery Potential / Power Input #1 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Electrical Power Supply - Test" 
168-3
Electrical System Voltage : Voltage Above Normal 
Troubleshooting, "Electrical Power Supply - Test" 
168-4
Electrical System Voltage : Voltage Below Normal 
Troubleshooting, "Electrical Power Supply - Test" 
174-3
Engine Fuel Temperature : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
174-4
Engine Fuel Temperature : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
174-12
Engine Fuel Temperature 1 : Failure 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
175-3
Engine Oil Temperature : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
175-4
Engine Oil Temperature : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
190-8
Engine Speed Sensor : Abnormal Frequency, Pulse Width, or Period 
Troubleshooting, "Speed Timing - Test" 
234-2
Software Identification : Erratic, Intermittent, or Incorrect 
Troubleshooting, "ECM Software - Install" 
234-14
Software Identification : Special Instruction 
Troubleshooting, "Data Link Configuration Status - Test" 
430-5
Engine Starter Solenoid Voltage : Current Below Normal 
Troubleshooting, "Solenoid Valve - Test" 
430-6
Engine Starter Solenoid Voltage : Current Above Normal 
Troubleshooting, "Solenoid Valve - Test" 
630-2
Calibration Memory : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Configuration Parameters" 
631-2
Calibration Module : Erratic, Intermittent, or Incorrect 
Troubleshooting, "ECM Software - Install" 
632-5
Engine Fuel Shutoff Valve #1 : Current Below Normal 
Troubleshooting, "Solenoid Valve - Test" 
632-6
Engine Fuel Shutoff Valve #1 : Current Above Normal 
Troubleshooting, "Solenoid Valve - Test" 
632-7
Engine Fuel Shutoff Valve #1 : Not Responding Properly 
Troubleshooting, "Unburned Gas - Purge" 
633-7
Engine Fuel Actuator 1 Control Command : Not Responding Properly 
Troubleshooting, "Fuel Metering Valve - Test" 
633-8
Engine Fuel Actuator 1 Control Command : Abnormal Frequency, Pulse Width, or Period 
Troubleshooting, "Fuel Metering Valve - Test" 
633-13
Engine Fuel Actuator 1 Control Command : Out of Calibration 
Troubleshooting, "Fuel Metering Valve - Test" 
637-11
Engine Timing Sensor : Other Failure Mode 
The camshaft is out of alignment with the crankshaft.
Refer to Testing and Adjusting, "Camshaft Timing" for additional information. 
677-5
Engine Starter Motor Relay : Current Below Normal 
Troubleshooting, "Solenoid Valve - Test" 
677-6
Engine Starter Motor Relay : Current Above Normal 
Troubleshooting, "Solenoid Valve - Test" 
678-3
ECU 8 Volts DC Supply : Voltage Above Normal 
Troubleshooting, "Sensor Supply - Test" 
678-4
ECU 8 Volts DC Supply : Voltage Below Normal 
Troubleshooting, "Sensor Supply - Test" 
723-8
Engine Speed Sensor #2 : Abnormal Frequency, Pulse Width, or Period 
Troubleshooting, "Speed/Timing - Test" 
723-19
Engine Speed Sensor #2 : Data Error 
Troubleshooting, "Speed/Timing - Test" 
843-9
Operator Control Panel : Abnormal Update Rate 
Troubleshooting, "Data Link - Test" 
898-9
Engine Requested Speed/Speed Limit : Abnormal Update Rate 
Troubleshooting, "Data Link - Test" 
974-5
Remote Accelerator Pedal Position : Current Below Normal 
Troubleshooting, "Speed Control - Test" 
974-6
Remote Accelerator Pedal Position : Current Above Normal 
Troubleshooting, "Speed Control - Test" 
1172-3
Engine Turbocharger 1 Compressor Inlet Temperature : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
1172-4
Engine Turbocharger 1 Compressor Inlet Temperature : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Passive) - Test" 
1176-3
Engine Turbocharger 1 Compressor Inlet Pressure : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
1176-4
Engine Turbocharger 1 Compressor Inlet Pressure : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
1177-3
Engine Turbocharger 2 Compressor Inlet Pressure : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
1177-4
Engine Turbocharger 2 Compressor Inlet Pressure : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
1188-5
Engine Turbocharger #1 Wastegate Drive : Current Below Normal 
Troubleshooting, "Solenoid Valve - Test" 
1188-6
Engine Turbocharger #1 Wastegate Drive : Current Above Normal 
Troubleshooting, "Solenoid Valve - Test" 
1208-3
Engine Prefilter Oil Pressure : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
1208-4
Engine Prefilter Oil Pressure : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
1268-5
Engine Ignition Coil #1 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1268-6
Engine Ignition Coil #1 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1269-5
Engine Ignition Coil #2 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1269-6
Engine Ignition Coil #2 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1270-5
Engine Ignition Coil #3 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1270-6
Engine Ignition Coil #3 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1271-5
Engine Ignition Coil #4 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1271-6
Engine Ignition Coil #4 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1272-5
Engine Ignition Coil #5 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1272-6
Engine Ignition Coil #5 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1273-5
Engine Ignition Coil #6 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1273-6
Engine Ignition Coil #6 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1274-5
Engine Ignition Coil #7 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1274-6
Engine Ignition Coil #7 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1275-5
Engine Ignition Coil #8 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1275-6
Engine Ignition Coil #8 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1276-5
Engine Ignition Coil #9 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1276-6
Engine Ignition Coil #9 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1277-5
Engine Ignition Coil #10 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1277-6
Engine Ignition Coil #10 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1278-5
Engine Ignition Coil #11 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1278-6
Engine Ignition Coil #11 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1279-5
Engine Ignition Coil #12 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1279-6
Engine Ignition Coil #12 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1280-5
Engine Ignition Coil #13 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1280-6
Engine Ignition Coil #13 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1281-5
Engine Ignition Coil #14 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1281-6
Engine Ignition Coil #14 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1282-5
Engine Ignition Coil #15 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1282-6
Engine Ignition Coil #15 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1283-5
Engine Ignition Coil #16 : Current Below Normal 
Troubleshooting, "Ignition Primary - Test" 
1283-6
Engine Ignition Coil #16 : Current Above Normal 
Troubleshooting, "Ignition Primary - Test" 
1352-3
Engine Cylinder #1 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1352-4
Engine Cylinder #1 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1353-3
Engine Cylinder #2 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1353-4
Engine Cylinder #2 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1354-3
Engine Cylinder #3 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1354-4
Engine Cylinder #3 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1355-3
Engine Cylinder #4 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1355-4
Engine Cylinder #4 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1356-3
Engine Cylinder #5 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1356-4
Engine Cylinder #5 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1357-3
Engine Cylinder #6 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1357-4
Engine Cylinder #6 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1358-3
Engine Cylinder #7 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1358-4
Engine Cylinder #7 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1359-3
Engine Cylinder #8 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1359-4
Engine Cylinder #8 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1360-3
Engine Cylinder #9 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1360-4
Engine Cylinder #9 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1361-3
Engine Cylinder #10 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1361-4
Engine Cylinder #10 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1362-3
Engine Cylinder #11 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1362-4
Engine Cylinder #11 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1363-3
Engine Cylinder #12 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1363-4
Engine Cylinder #12 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1364-3
Engine Cylinder #13 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1364-4
Engine Cylinder #13 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1365-3
Engine Cylinder #14 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1365-4
Engine Cylinder #14 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1366-3
Engine Cylinder #15 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1366-4
Engine Cylinder #15 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1367-3
Engine Cylinder #16 Knock Level : Voltage Above Normal 
Troubleshooting, "Detonation - Test" 
1367-4
Engine Cylinder #16 Knock Level : Voltage Below Normal 
Troubleshooting, "Detonation - Test" 
1392-3
Engine Air to Fuel Valve Differential Pressure : Voltage Above Normal 
Troubleshooting, "Air/Fuel Pressure Module - Test" 
1392-4
Engine Air to Fuel Valve Differential Pressure : Voltage Below Normal 
Troubleshooting, "Air/Fuel Pressure Module - Test" 
1392-8
Engine Air to Fuel Valve Differential Pressure : Abnormal Frequency, Pulse Width, or Period 
Troubleshooting, "Air/Fuel Pressure Module - Test" 
1392-13
Engine Air to Fuel Differential Pressure : Out of Calibration 
Troubleshooting, "Air/Fuel Pressure Module - Calibrate" 
1393-5
Engine Cylinder #1 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1393-15
Engine Cylinder #1 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1394-5
Engine Cylinder #2 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1394-15
Engine Cylinder #2 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1395-5
Engine Cylinder #3 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1395-15
Engine Cylinder #3 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1396-5
Engine Cylinder #4 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1396-15
Engine Cylinder #4 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1397-5
Engine Cylinder #5 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1397-15
Engine Cylinder #5 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1398-5
Engine Cylinder #6 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1398-15
Engine Cylinder #6 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1399-5
Engine Cylinder #7 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1399-15
Engine Cylinder #7 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1400-5
Engine Cylinder #8 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1400-15
Engine Cylinder #8 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1401-5
Engine Cylinder #9 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1401-15
Engine Cylinder #9 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1402-5
Engine Cylinder #10 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1402-15
Engine Cylinder #10 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1403-5
Engine Cylinder #11 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1403-15
Engine Cylinder #11 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1404-5
Engine Cylinder #12 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1404-15
Engine Cylinder #12 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1405-5
Engine Cylinder #13 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1405-15
Engine Cylinder #13 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1406-5
Engine Cylinder #14 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1406-15
Engine Cylinder #14 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1407-5
Engine Cylinder #15 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1407-15
Engine Cylinder #15 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1408-5
Engine Cylinder #16 Ignition Transformer Secondary Output : Current Below Normal 
Troubleshooting, "Ignition Secondary - Test" 
1408-15
Engine Cylinder #16 Ignition Transformer Secondary Output : High - least severe (1) 
Troubleshooting, "Ignition Secondary - Test" 
1442-9
Engine Fuel Valve #1 Position : Abnormal Update Rate 
Troubleshooting, "Data Link - Test" 
1656-2
Automatic Start Enable Switch : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Engine Control Switch - Test" 
1664-31
Engine Automatic Start Failed : Condition Exists 
Troubleshooting, "Engine Cranks but Does Not Start" 
1762-3
Hydraulic Pressure : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
1762-4
Hydraulic Pressure : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
2241-9
Source Address 241 : Abnormal Update Rate 
Troubleshooting, "Data Link - Test" 
2629-3
Engine Turbocharger 1 Compressor Outlet Temperature : Voltage Above Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
2629-4
Engine Turbocharger 1 Compressor Outlet Temperature : Voltage Below Normal 
Troubleshooting, "Sensor Signal (Analog, Active) - Test" 
2634-5
Power Relay : Current Below Normal 
Troubleshooting, "Solenoid Valve - Test" 
2634-6
Power Relay : Current Above Normal 
Troubleshooting, "Solenoid Valve - Test" 
2980-0
Engine Fuel Valve #1 Outlet Absolute Pressure : High - most severe (3) 
Troubleshooting, "Unburned Gas - Purge" 
2980-15
Engine Fuel Valve #1 Outlet Absolute Pressure : High - least severe (1) 
Troubleshooting, "Unburned Gas - Purge" 
3216-2
Aftertreatment #1 Intake NOx : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Nitrogen Oxide Level - Test" 
3216-4
Aftertreatment #1 Intake NOx : Voltage Below Normal 
Troubleshooting, "Nitrogen Oxide Level - Test" 
3216-6
Aftertreatment #1 Intake NOx : Current Above Normal 
Troubleshooting, "Nitrogen Oxide Level - Test" 
3216-9
Aftertreatment #1 Intake NOx : Abnormal Update Rate 
Troubleshooting, "Data Link - Test" 
3216-12
Aftertreatment #1 Intake NOx : Failure 
Troubleshooting, "Nitrogen Oxide Level - Test" 
3216-14
Aftertreatment #1 Intake NOx : Special Instruction 
Troubleshooting, "Nitrogen Oxide Level - Test" 
3509-3
Sensor Supply Voltage : 1 Voltage Above Normal 
Troubleshooting, "Sensor Supply - Test" 
3509-4
Sensor Supply Voltage : 1 Voltage Below Normal 
Troubleshooting, "Sensor Supply - Test" 
3510-3
Sensor Supply Voltage : 2 Voltage Above Normal 
Troubleshooting, "Sensor Supply - Test" 
3510-4
Sensor Supply Voltage : 2 Voltage Below Normal 
Troubleshooting, "Sensor Supply - Test" 
3542-9
Requested Engine Control Mode : Abnormal Update Rate 
Troubleshooting, "Data Link - Test" 
3597-3
ECU Power Output Supply Voltage #1 : Voltage Above Normal 
If this code is active, replace the engine ecm. 
3597-4
ECU Power Output Supply Voltage #1 : Voltage Below Normal 
If this code is active, replace the engine ecm. 
3607-2
Engine Emergency Shutdown Indication : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Engine Shutdown Occurrence" 
3607-31
Engine Emergency Shutdown Indication 
Troubleshooting, "Engine Shutdown Occurrence" 
4210-5
Engine Pre-lube Drive : Current Below Normal 
Troubleshooting, "Solenoid Valve - Test" 
4210-6
Engine Pre-lube Drive : Current Above Normal 
Troubleshooting, "Solenoid Valve - Test" 
4245-5
Fuel Energy Content : Current Below Normal 
Troubleshooting, "Solenoid Valve - Test" 
4245-6
Fuel Energy Content : Current Above Normal 
Troubleshooting, "Solenoid Valve - Test" 
4817-3
Engine Intake Manifold #1 Absolute Pressure : Voltage Above Normal 
Troubleshooting, "Air/Fuel Pressure Module - Test" 
4817-4
Engine Intake Manifold #1 Absolute Pressure : Voltage Below Normal 
Troubleshooting, "Air/Fuel Pressure Module - Test" 
4817-8
Engine Intake Manifold #1 Absolute Pressure : Abnormal Frequency, Pulse Width, or Period 
Troubleshooting, "Air/Fuel Pressure Module - Test" 
4817-13
Engine Intake Manifold #1 Absolute Pressure : Out of Calibration 
Troubleshooting, "Air/Fuel Pressure Module - Calibrate" 
5272-31
Unexpected Engine Shutdown 
Troubleshooting, "Engine Shutdown Occurrence" 
5418-3
Engine Fuel Actuator #1 : Voltage Above Normal 
Troubleshooting, "Fuel Metering Valve - Test" 
5418-4
Engine Fuel Actuator #1 : Voltage Below Normal 
Troubleshooting, "Fuel Metering Valve - Test" 
5418-5
Engine Fuel Actuator #1 : Current Below Normal 
Troubleshooting, "Fuel Metering Valve - Test" 
5418-9
Engine Fuel Actuator #1 : Abnormal Update Rate 
Troubleshooting, "Data Link - Test" 
5418-12
Engine Fuel Actuator #1 : Failure 
Troubleshooting, "Fuel Metering Valve - Test" 
5419-5
Engine Throttle Actuator #1 : Current Below Normal 
Troubleshooting, "Solenoid Valve - Test" 
5419-6
Engine Throttle Actuator #1 : Current Above Normal 
Troubleshooting, "Solenoid Valve - Test" 
5758-6
Aftertreatment #1 Intake Gas Sensor Power Supply : Current Above Normal 
Troubleshooting, "Nitrogen Oxide Level - Test" 
5758-11
Aftertreatment #1 Intake Gas Sensor Power Supply : Other Failure Mode 
Troubleshooting, "Nitrogen Oxide Level - Test" 
Codes Detected by the Integrated Sensing Module 
725-2
Engine Ignition Control Mode Signal : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Firing Signal - Test" 
725-3
Engine Ignition Control Mode Signal : Voltage Above Normal 
Troubleshooting, "Cylinder Firing Signal - Test" 
725-4
Engine Ignition Control Mode Signal : Voltage Below Normal 
Troubleshooting, "Cylinder Firing Signal - Test" 
725-8
Engine Ignition Control Mode Signal : Abnormal Frequency, Pulse Width, or Period 
Troubleshooting, "Cylinder Firing Signal - Test" 
726-2
Engine Ignition Control Timing Signal : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Firing Signal - Test" 
726-3
Engine Ignition Control Timing Signal : Voltage Above Normal 
Troubleshooting, "Cylinder Firing Signal - Test" 
726-4
Engine Ignition Control Timing Signal : Voltage Below Normal 
Troubleshooting, "Cylinder Firing Signal - Test" 
1137-3
Engine Exhaust Gas Port 1 Temperature : Voltage Above Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1137-4
Engine Exhaust Gas Port 1 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1138-3
Engine Exhaust Gas Port 2 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1138-4
Engine Exhaust Gas Port 2 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1139-3
Engine Exhaust Gas Port 3 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1139-4
Engine Exhaust Gas Port 3 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1140-3
Engine Exhaust Gas Port 4 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1140-4
Engine Exhaust Gas Port 4 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1141-3
Engine Exhaust Gas Port 5 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1141-4
Engine Exhaust Gas Port 5 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1142-3
Engine Exhaust Gas Port 6 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1142-4
Engine Exhaust Gas Port 6 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1143-3
Engine Exhaust Gas Port 7 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1143-4
Engine Exhaust Gas Port 7 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1144-3
Engine Exhaust Gas Port 8 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1144-4
Engine Exhaust Gas Port 8 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1145-3
Engine Exhaust Gas Port 9 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1145-4
Engine Exhaust Gas Port 9 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1146-3
Engine Exhaust Gas Port 10 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1146-4
Engine Exhaust Gas Port 10 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1147-3
Engine Exhaust Gas Port 11 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1147-4
Engine Exhaust Gas Port 11 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1148-3
Engine Exhaust Gas Port 12 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1148-4
Engine Exhaust Gas Port 12 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1149-3
Engine Exhaust Gas Port 13 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1149-4
Engine Exhaust Gas Port 13 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1150-3
Engine Exhaust Gas Port 14 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1150-4
Engine Exhaust Gas Port 14 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1151-3
Engine Exhaust Gas Port 15 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1151-4
Engine Exhaust Gas Port 15 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1152-3
Engine Exhaust Gas Port 16 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1152-4
Engine Exhaust Gas Port 16 Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1180-3
Engine Turbocharger #1 Turbine Inlet Temperature : Voltage Above Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1180-4
Engine Turbocharger #1 Turbine Inlet Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1181-3
Engine Turbocharger #2 Turbine Inlet Temperature : Voltage Above Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1181-4
Engine Turbocharger #2 Turbine Inlet Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1184-3
Engine Turbocharger #1 Turbine Outlet Temperature : Voltage Above Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1184-4
Engine Turbocharger #1 Turbine Outlet Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1185-3
Engine Turbocharger #2 Turbine Outlet Temperature : Voltage Above Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1185-4
Engine Turbocharger #2 Turbine Outlet Temperature : Voltage Below Normal 
Troubleshooting, "Exhaust Temperature - Test" 
1323-2
Engine Misfire Cylinder #1 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1323-4
Engine Misfire Cylinder #1 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1323-31
Engine Misfire Cylinder #1 
Troubleshooting, "Cylinder Combustion - Test" 
1324-2
Engine Misfire Cylinder #2 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1324-4
Engine Misfire Cylinder #2 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1324-31
Engine Misfire Cylinder #2 
Troubleshooting, "Cylinder Combustion - Test" 
1325-2
Engine Misfire Cylinder #3 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1325-4
Engine Misfire Cylinder #3 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1325-31
Engine Misfire Cylinder #3 
Troubleshooting, "Cylinder Combustion - Test" 
1326-2
Engine Misfire Cylinder #4 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1326-4
Engine Misfire Cylinder #4 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1326-31
Engine Misfire Cylinder #4 
Troubleshooting, "Cylinder Combustion - Test" 
1327-2
Engine Misfire Cylinder #5 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1327-4
Engine Misfire Cylinder #5 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1327-31
Engine Misfire Cylinder #5 
Troubleshooting, "Cylinder Combustion - Test" 
1328-2
Engine Misfire Cylinder #6 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1328-4
Engine Misfire Cylinder #6 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1328-31
Engine Misfire Cylinder #6 
Troubleshooting, "Cylinder Combustion - Test" 
1329-2
Engine Misfire Cylinder #7 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1329-4
Engine Misfire Cylinder #7 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1329-31
Engine Misfire Cylinder #7 
Troubleshooting, "Cylinder Combustion - Test" 
1330-2
Engine Misfire Cylinder #8 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1330-4
Engine Misfire Cylinder #8 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1330-31
Engine Misfire Cylinder #8 
Troubleshooting, "Cylinder Combustion - Test" 
1331-2
Engine Misfire Cylinder #9 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1331-4
Engine Misfire Cylinder #9 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1331-31
Engine Misfire Cylinder #9 
Troubleshooting, "Cylinder Combustion - Test" 
1332-2
Engine Misfire Cylinder #10 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1332-4
Engine Misfire Cylinder #10 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1332-31
Engine Misfire Cylinder #10 
Troubleshooting, "Cylinder Combustion - Test" 
1333-2
Engine Misfire Cylinder #11 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1333-4
Engine Misfire Cylinder #11 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1333-31
Engine Misfire Cylinder #11 
Troubleshooting, "Cylinder Combustion - Test" 
1334-2
Engine Misfire Cylinder #12 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1334-4
Engine Misfire Cylinder #12 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1334-31
Engine Misfire Cylinder #12 
Troubleshooting, "Cylinder Combustion - Test" 
1335-2
Engine Misfire Cylinder #13 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1335-4
Engine Misfire Cylinder #13 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1335-31
Engine Misfire Cylinder #13 
Troubleshooting, "Cylinder Combustion - Test" 
1336-2
Engine Misfire Cylinder #14 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1336-4
Engine Misfire Cylinder #14 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1336-31
Engine Misfire Cylinder #14 
Troubleshooting, "Cylinder Combustion - Test" 
1337-2
Engine Misfire Cylinder #15 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1337-4
Engine Misfire Cylinder #15 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1337-31
Engine Misfire Cylinder #15 
Troubleshooting, "Cylinder Combustion - Test" 
1338-2
Engine Misfire Cylinder #16 : Erratic, Intermittent, or Incorrect 
Troubleshooting, "Cylinder Combustion - Test" 
1338-4
Engine Misfire Cylinder #16 : Voltage Below Normal 
Troubleshooting, "Cylinder Combustion - Test" 
1338-31
Engine Misfire Cylinder #16 
Troubleshooting, "Cylinder Combustion - Test" 

Diagnostic Codes

Diagnostic codes alert the operator that a problem in the electronic system has been detected. Diagnostic codes are also used by the service technician to identify the nature of the problem. Cat ET is a software program that is designed to run on a personal computer. The software can be used by the technician in order to view the diagnostic code information for an Electronic Control Module (ECM). Diagnostic codes may consist of the suspect parameter number (SPN) and the failure mode identifier (FMI).

Source Address - The source address is a code with two or three digits that indicates the electronic module which generated the diagnostic code. The source address for the engine's ECM is 00. The source address for the engine's Integrated Sensing Module (ISM) is 241. Some electronic displays do not display the MID because the module which generates the code is obvious.

Failure Mode Identifier (FMI) - The FMI indicates the type of failure. Table 2 is a list of the failure mode identifiers.

Table 2
Failure Mode Identifiers 
FMI  Description of Failure 
00  "Data valid but above normal operating range" 
01  "Data valid but below normal operating range" 
02  "Data erratic, intermittent or incorrect" 
03  "Voltage above normal or shorted high" 
04  "Voltage below normal or shorted low" 
05  "Current below normal or open circuit" 
06  "Current above normal or grounded circuit" 
07  "Mechanical system not responding properly" 
08  "Abnormal frequency, pulse, or period" 
09  "Abnormal update" 
10  "Abnormal rate of change" 
11  "Failure mode not identifiable" 
12  "Bad device or component" 
13  "Out of calibration" 
14  "Not used" 
15  "Not used" 
16  "Parameter not available" 
17  "Module not responding" 
18  "Sensor supply fault" 
19  "Condition not met" 
20  "Not used" 

Refer to Table 1 for a complete list of the diagnostic codes and the appropriate troubleshooting procedure.

Note: Do not confuse diagnostic codes with event codes. Event codes alert the operator that an abnormal operating condition such as low oil pressure or high coolant temperature has been detected. If an event code is active, refer to Troubleshooting, "Event Codes".

Illustration 1 is an example of the operating range of a sensor.



Illustration 1g01365757
Example of the typical operating range of a sensor
(1) This area represents the normal operating range of the engine parameter.
(2) In these areas, the engine is operating in an unsafe operating range of the monitored parameter. An event code will be generated for the monitored parameter. The sensor circuit does not have an electronic problem. Refer to Troubleshooting, "Event Codes" for additional information on event codes.
(3) In these areas, the signal from the sensor is outside of the operating range of the sensor. The sensor circuit has an electronic problem. A diagnostic code will be generated for the sensor circuit.

Active Diagnostic Codes

An active diagnostic code represents a problem with the electronic control system. Correct the problem as soon as possible.

When the engine's ECM generates an active diagnostic code, the "Active Alarm" indicator ("Engine Control Alarm Status" on Cat ET) is activated in order to alert the operator. If the condition that generated the code is momentary, the message disappears from the list of active diagnostic codes. The diagnostic code becomes logged.

Logged Diagnostic Codes

When the ECM generates a diagnostic code, the ECM logs the code in permanent memory. The ECM has an internal diagnostic clock. Each ECM will record the following information when a code is generated:

  • The hour of the first occurrence of the code

  • The hour of the last occurrence of the code

  • The number of occurrences of the code

This information is a valuable indicator for troubleshooting intermittent problems.

A code is cleared from memory when one of the following conditions occur:

  • The service technician manually clears the code.

  • The code does not recur for 100 hours.

  • A new code is logged and there are already ten codes in memory. In this case, the oldest code is cleared.

Some diagnostic codes may be easily triggered. Some diagnostic codes may log occurrences that did not result in complaints. The most likely cause of an intermittent problem is a faulty connection or damaged wiring. The next likely cause is a component failure. The least likely cause is the failure of an electronic module. Diagnostic codes that are logged repeatedly may indicate a problem that needs special investigation.

Note: Always clear logged diagnostic codes after investigating and correcting the problem which generated the code.

Information System:

G3600 A4 Engines Electrical Connectors
374F Excavator Machine Systems Overload Warning - Set - If Equipped
G3600 A4 Engines System Overview
C280-08 Tier 4 Engine Pressure Sensor (DEF Air) - Remove and Install
C4.4 Industrial Engine Engine Oil and Filter - Change
14L Motor Grader Engine - Remove and Install
C7 and C9 Industrial Engines Power Is Intermittently Low or Power Cutout Is Intermittent
14L Motor Grader Temperature Sensor (Catalyst Inlet) - Remove and Install
14L Motor Grader Solenoid Valve (ARD Fuel) - Remove and Install - Pilot
C7 and C9 Industrial Engines Exhaust Has Excessive Black Smoke
C8.7 and C12.9 Marine Engines Engine Vibration Is Excessive
C27 and C32 Engines for Caterpillar Built Machines Engine Overspeeds
C280-08 Tier 4 Engine Manifold (Diesel Exhaust Fluid) - Remove and Install
14L Motor Grader Nozzle Heater Harness - Remove and Install
14L Motor Grader Catalyst (SCR) - Remove and Install
12M Series 3, 140M Series 3, 160M Series 3, 140, 150 and and 160 Motor Graders Location of Components (Hydraulic System)
C280-08 Tier 4 Engine Solenoid Valve (DEF Supply) - Remove and Install
C280-12 Marine Engine Product Description
C280-08 Tier 4 Engine Liquid Level Sensor (DEF) - Remove and Install
C280-08 Tier 4 Engine Filter Screen (Air) - Remove and Install
C280-12 Marine Engine Alarms and Shutoffs
C280-12 Marine Engine Refill Capacities
14L Motor Grader Nitrogen Oxide Sensor - Remove and Install - Inlet
C280-12 Marine Engine Engine Air Cleaner Element (Single Element) - Inspect/Replace