LINK-TRACK-RH 1080947 - Caterpillar

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. Caterpillar Electronic Technician (ET) is a software program that is designed to run on a personal computer. The software can be used by the service technician to view the diagnostic code information for an Electronic Control Module (ECM). Diagnostic codes may consist of the component identifier (CID), and the failure mode identifier (FMI).Component Identifier (CID) - The CID indicates the component that generated the code. For example, the CID number 100 identifies the engine oil pressure sensor.Failure Mode Identifier (FMI) - The FMI indicates the type of failure.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 1 g01365757
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.Cross-Reference Information for Diagnostic Codes
Table 1 is a list of the diagnostic codes for this engine. The diagnostic codes are cross-referenced with the appropriate procedure that can be used to troubleshoot the code.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
Cross-Reference from CID-FMI Code to SPN-FMI Code to the Appropriate Circuit Test
CID-FMI Code and Description Troubleshooting Procedure
17-5 Fuel Shutoff Valve : Current Below Normal Troubleshooting, "Fuel Shutoff - Test"
17-6 Fuel Shutoff Valve : Current Above Normal Troubleshooting, "Fuel Shutoff - Test"
17-12 Fuel Shutoff Valve : Failure Troubleshooting, "Fuel Shutoff - Test"
41-3 8 Volt DC Supply : Voltage Above Normal Troubleshooting, "Sensor Supply - Test"
41-4 8 Volt DC Supply : Voltage Below Normal Troubleshooting, "Sensor Supply - Test"
100-3 Engine Oil Pressure Sensor : Voltage Above Normal