D250E Series II, D300E Series II, D350E Series II and D400E Series II Articulated Trucks Power Train Electronic Control System Caterpillar

This diagnostic code is recorded when the power train ECM receives information about the harness code from the monitoring system. This information indicates that the serial number for the machine has changed during machine operation. The information that was received is NOT correct.

Note: Other related diagnostic codes may cause this diagnostic code. Check for other related diagnostic codes.

The possible cause of this diagnostic code is listed:

• The machine serial number in the monitoring system was entered incorrectly.

The results of this diagnostic code are listed:

• Results are NOT apparent to the operator (logged diagnostic code).

• The actions are similar to another machine.

Note: If an attempt is made to restart the machine, a problem may occur. A problem can occur if the machine has been shut down with an active CID 0967 FMI 02. If the new serial number is a valid code, the ECM will think that the ECM is on a different machine. This condition can cause operational errors. If the new serial number is an invalid code, the ECM will revert to the last valid code that was used.

1. VERIFY THE HARDWARE AND THE SOFTWARE PART NUMBERS.

   1. Verify whether the following part number is correct:
      • Check the serial number in the monitoring system. The serial number must be the serial number of the machine.

      Expected Result: Consult the Business Unit that is producing the product for the correct configuration of the machine.

      Results:

      • OK - All part numbers are correct. Resume normal machine operation. Watch for a recurrence. STOP.

      • NOT OK - All part number are NOT correct. Obtain the correct software and flash the correct software into the ECM. See Testing And Adjusting, "Electronic Control Module (ECM) - Flash Program". STOP.