ADAPTER 3717226 - Caterpillar

General Error Codes
General Calibration Error Codes
Table 1
Error Codes That Can Be Activated When Any General Calibration Procedures Are Performed    
Error Code    Probable Cause of Activation    Recommended Actions    
0001 - ECM Fault     The ECM has a general fault during calibration     Check machine ECM for faults.    
0002 - Active Diagnostic Present     An active diagnostic is preventing the calibration from being performed successfully.     An active diagnostic code for any of the following will inhibit a calibration:
- An active diagnostic code for the solenoid that is being calibrated other than an FMI 13.
Resolve the problem that is causing the active diagnostic code. Then retry the calibration.    
0003 - Another Calibration Is Active     A calibration procedure is trying to run on the Monitoring System Display and Cat® Electronic Technician (Cat ET) Service Tool at the same time.
OR
A calibration was started and did not successfully close out.     Only perform one calibration procedure at a time.
If a calibration is canceled, wait at least 15 seconds before starting another calibration procedure.
If the error message continues to pop up, key OFF and back ON before attempting the calibration again.    
0004 - Calibration Active By Another ECM     A calibration procedure is trying to run on the Monitoring System Display and Cat ET at the same time.
OR
A calibration was started, then canceled and another calibration is started too fast.     Only run one calibration procedure at a time.
If one calibration is canceled, wait at least 15 seconds before starting another calibration procedure.    
0005 - Loss Of Calibration Interlock     Cat ET has lost communication with the ECM.     Check for any active Cat Data Link diagnostic codes. Resolve any active codes.
Check the Cat Data Link Connections.
Check the Cat ET communication connections.
Cycle the key start switch