TUBE ASSEM. 7K8803 - Caterpillar

Diagnostic codes alert the operator that a problem exists. Diagnostic codes indicate the following types of problems to the service technician:
Shutdown
Warning
Improper parameter programming
EventsDiagnostic codes may be viewed on the DDT. When a diagnostic code is present, correct the problem as soon as possible. The TCM will not automatically clear the code from the DDT.Note all of the diagnostic codes in order to avoid losing the codes while you perform the troubleshooting procedures. After you have completed the repairs, turn off the system's power in order to clear all of the diagnostic codes.The diagnostic codes for the TCM are listed in Table 1.
Table 1
Diagnostic Codes for the Timing Control Module    
DDT
CODES     Description    
01     No Speed Sensor Signal (Open)    
02     No Speed Sensor Signal (Short)    
03     No Crank Angle Sensor (Open)    
04     No Crank Angle Sensor (Short)    
05     No Magneto Interface Signal    
06     No Right Detonation Sensor Signal    
07     No Left Detonation Sensor Signal    
08     Magneto Out Of Calibration    
09     Detonation Engine Shutdown    
18     Too Many Flywheel Teeth Detected at Start    
19     Too Few Flywheel Teeth Detected at Start