BOLT 6I0654 - Caterpillar

System Operation Description:Digital inputs are used to convey on/off information, such as switch closures, to the generator set control. Depending on how the input is programmed, the EMCP 4 associates the inputs with levels, temperatures, pressures, and status conditions . Two of the digital inputs, which are programmed at the factory, are used by the EMCP 4 to control emergency stop and remote initiate functions. The spare digital inputs must be programmed before use.For additional information on programming digital inputs, refer to System Operation, "Digital Input Programming"Conditions Which Generate This Code:This code is generated when the digital input is active. The code may indicate that a problem exists with the generator set, or the code may indicate a status that does not require repair.repaired.Test Step 1. PERFORM THE INITIAL CHECK.
Use the Caterpillar Electronic Technician (Cat ET) in order to check for active diagnostic codes on the engine ECM. If any codes are present, correct the diagnostic codes first. Expected Result:No other diagnostic codes or indicators are active on the engine ECM.Results:
OK - No other diagnostic codes or indicators are active. Proceed to Test Step 2
NOT OK - Another engine ECM diagnostic code is active.Repair: Exit this procedure. Troubleshoot the active code or indicator. Refer to the Troubleshooting manual of the engine for your generator set.STOPTest Step 2. CHECK THE SETPOINTS
View the digital input setpoints. Make a note of the setpoints. Refer to Testing and Adjusting, "Electronic Control Module (Generator Set) - Configure". Compare the setpoints against the default setpoints of the particular generator set. Expected Result:The setpoints are correct.Results: