C18 Industrial Engine Caterpillar

Diagnostic Code Cross Reference

Usage:

C18 NBB

Problems with the electronic control system are reported via these types of codes: flash codes, SPN/FMI codes, diagnostic codes and event codes.

For information on flash codes, refer to Troubleshooting, "Flash Codes".

For information on SPN/FMI codes, refer to Troubleshooting, "Diagnostic Codes".

For information on diagnostic codes, refer to Troubleshooting, "Diagnostic Codes".

For information on event codes, refer to Troubleshooting, "Event Codes".

Use Table 1 as a cross-reference between the various types of codes.

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Table 1
Cross Reference for Diagnostic Codes
Flash Code	SPN ⁽¹⁾/FMI Code	Diagnostic Code or Event Code	Description of Code
13	174-03	174-03	Fuel Temperature Sensor : Voltage Above Normal
13	174-04	174-04	Fuel Temperature Sensor : Voltage Below Normal
21	678-03	41-03	8 Volt DC Supply : Voltage Above Normal
	678-04	41-04	8 Volt DC Supply : Voltage Below Normal
	620-03	262-03	5 Volt Sensor DC Power Supply : Voltage Above Normal
	1079-03	262-03	5 Volt Sensor DC Power Supply : Voltage Above Normal
	620-04	262-04	5 Volt Sensor DC Power Supply : Voltage Below Normal
	1079-04	262-04	5 Volt Sensor DC Power Supply : Voltage Below Normal
24	100-03	100-03	Engine Oil Pressure Sensor : Voltage Above Normal
	100-04	100-04	Engine Oil Pressure Sensor : Voltage Below Normal
	100-10	100-10	10 Engine Oil Pressure Sensor : Abnormal Rate of Change
25	102-03	1785-03	Intake Manifold Pressure Sensor : Voltage Above Normal
	102-04	1785-04	Intake Manifold Pressure Sensor : Voltage Below Normal
	102-10	1785-10	Intake Manifold Pressure Sensor : Abnormal Rate of Change
26	108-03	274-03	Atmospheric Pressure Sensor : Voltage Above Normal
26	108-04	274-04	Atmospheric Pressure Sensor : Voltage Below Normal
27	110-03	110-03	Engine Coolant Temperature Sensor : Voltage Above Normal
27	110-04	110-04	Engine Coolant Temperature Sensor : Voltage Below Normal
34	190-08	190-08	Engine Speed Sensor : Abnormal Frequency, Pulse Width, or Period
34	723-08	342-08	Secondary Engine Speed Sensor : Abnormal Frequency, Pulse Width, or Period
35	190-15	E362 ⁽²⁾	Engine Overspeed Warning
	190-16		Engine Overspeed Derate
	190-00		Engine Overspeed Shutdown
37	94-03	94-03	Fuel Delivery Pressure Sensor : Voltage Above Normal
37	94-04	94-04	Fuel Delivery Pressure Sensor : Voltage Below Normal
38	105-03	172-03	Intake Manifold Air Temperature Sensor : Voltage Above Normal
38	105-04	172-04	Intake Manifold Air Temperature Sensor : Voltage Below Normal
42	637-13	261-13	Engine Timing Calibration : Calibration Required
46	100-17	E360 ⁽²⁾	Low Engine Oil Pressure Warning
	100-18		Low Engine Oil Pressure Derate
	100-01		Low Engine Oil Pressure Shutdown
51	168-00	168-00	Electrical System Voltage : High
	168-01	168-01	Electrical System Voltage : Low
	168-02	168-02	Electrical System Voltage : Erratic, Intermittent, or Incorrect
52	N/A	650-12	Harness Code invalid
53	N/A	1435-09	System Master Control Module : Abnormal Update Rate
54	N/A	1632-09	Backup Engine Control Module : Abnormal Update Rate
56	630-02	268-02	Programmed Parameter Fault : Erratic, Intermittent, or Incorrect
56	631-02	253-02	Personality Module : Erratic, Intermittent, or Incorrect
57	N/A	336-07	Engine Control Switch : Not Responding Properly
58	639-09	296-09	Transmission Control : Abnormal Update Rate
61	110-15	E361 ⁽²⁾	High Engine Coolant Temperature Warning
	110-16		High Engine Coolant Temperature Derate
	110-00		High Engine Coolant Temperature Shutdown
62	111-17	E2143 ⁽²⁾	Low Engine Coolant Level Warning
	111-18		Low Engine Coolant Level Derate
	111-01		Low Engine Coolant Level Shutdown
	111-02	111-02	Engine Coolant Level Sensor : Erratic, Intermittent, or Incorrect
63	94-15	E096 ⁽²⁾	High Fuel Pressure Warning
64	105-15	E539 ⁽²⁾	High Intake Manifold Air Temperature Warning
	105-16		High Intake Manifold Air Temperature Derate
	105-00		High Intake Manifold Air Temperature Shutdown
65	174-15	E363 ⁽²⁾	High Fuel Supply Temperature Warning
	174-16		High Fuel Supply Temperature Derate
	174-00		High Fuel Supply Temperature Shutdown
71	651-05	001-05	Cylinder #1 Injector : Current Below Normal
71	651-06	001-06	Cylinder #1 Injector : Current Above Normal
72	652-05	002-05	Cylinder #2 Injector : Current Below Normal
72	652-06	002-06	Cylinder #2 Injector : Current Above Normal
73	653-05	003-05	Cylinder #3 Injector : Current Below Normal
73	653-06	003-06	Cylinder #3 Injector : Current Above Normal
74	654-05	004-05	Cylinder #4 Injector : Current Below Normal
74	654-06	004-06	Cylinder #4 Injector : Current Above Normal
75	655-05	005-05	Cylinder #5 Injector : Current Below Normal
75	655-06	005-06	Cylinder #5 Injector : Current Above Normal
76	656-05	006-05	Cylinder #6 Injector : Current Below Normal
76	656-06	006-06	Cylinder #6 Injector : Current Above Normal

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^( 1 )	Suspect Parameter Number
^( 2 )	Caterpillar Electronic Technician (ET) will display the number 1, 2, or 3 after the event code in order to designate a warning, a derate, or a shutdown.