SEBU7901-01 33 Operation Section Engine Diagnostics (Table 3, contd) (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. For further information, see the troubleshooting guide for your engine. i01797045 Engine Operation with Active Diagnostic Codes i01463504 Fault Logging SMCS Code: 1000; 1900; 1901; 1902 SMCS Code: 1000; 1900; 1901; 1902 If a diagnostic lamp illuminates during normal engine operation, the system has identified a situation that is not within the specification. Use Caterpillar electronic service tools to check the active diagnostic codes.
The system provides the capability of Fault Logging. When the Electronic Control Module (ECM) generates an active diagnostic code, the code will be logged in the memory of the ECM. The codes that have been logged in the memory of the ECM can be retrieved with Caterpillar electronic service tools. The codes that have been logged can be cleared with Caterpillar electronic service tools. The codes that have been logged in the memory of the ECM will be automatically cleared from the memory after 100 hours. The following faults can not be cleared from the memory of the ECM without using a factory password: overspeed, low engine oil pressure, and high engine coolant temperature. Note:
If the customer has selected “DERATE” and if there is a low oil pressure condition, the Electronic Control Module (ECM) will limit the engine power until the problem is corrected. If the oil pressure is within the normal range, the engine may be operated at the rated speed and load. However, maintenance should be performed as soon as possible. The active diagnostic code should be investigated. The cause of the problem should be corrected as soon as possible. If the cause of the active diagnostic code is repaired and there is only one active diagnostic code, the diagnostic lamp will turn off.
Operation of the engine and performance of the engine can be limited as a result of the active diagnostic code that is generated. Acceleration rates may be significantly slower. Refer to the Troubleshooting Guide for more information on the relationship between these active diagnostic codes and engine performance.
Cross Reference for Diagnostic Codes Flash Code SPN(1)/FMI Code Diagnostic Code or Event Code Description of Code 73 653-05 003-05 Injector Cylinder 3 open circuit 653-06 003-06 Injector Cylinder 3 short 653-11 003-11 Injector Cylinder #3 fault 74 654-05 004-05 Injector Cylinder 4 open circuit 654-06 004-06 Injector Cylinder 4 short 654-11 004-11 Injector Cylinder #4 fault 75 655-05 005-05 Injector Cylinder 5 open circuit 655-06 005-06 Injector Cylinder 5 short 655-11 005-11 Injector Cylinder #5 fault 76 656-05 006-05 Injector Cylinder 6 open circuit 656-06 006-06 Injector Cylinder 6 short 656-11 006-11 Injector Cylinder #6 fault