RIM A. 6B6444 - Caterpillar

This diagnostic code is associated with the position sensor (Lift cylinder). The FMI 13 means that the electronic control module (ECM) has determined that the signal of the sensor is not within expected limits. The possible causes of this diagnostic code are listed below:
The sensor needs to be calibrated.
The sensor needs to be adjusted.
The ECM has been flashed with new software.
The sensor has failed.
The ECM has failed.System Response:
The PCS will not function.Note: Ensure that you have repaired any condition that would cause other active diagnostic codes that are related to this sensor. If the other diagnostic codes are active, troubleshoot those codes first. Then perform this procedure.Note: Ensure that the diagnostic code of CID 1964 FMI 13 is active before performing this procedure.Test Step 1. CHECK THE CALIBRATION
Perform the necessary adjustment and calibration procedures. Refer to the Testing and Adjusting section of the Service Manual for these procedures.
Observe the status of the CID 1964 FMI 13. Expected Result:The CID 1964 FMI 13 is not active.Results:
OK - The CID 1964 FMI 13 is not active. The calibration corrected the condition that caused the CID 1964 FMI 13. Resume normal operation.STOP
NOT OK - The CID 1964 FMI 13 is still active.Repair: The diagnostic code is still active. Verify that the correct software has been flashed into the ECM, or that the correct ECM is installed on the machine. It is unlikely that the ECM has failed. Perform the previous steps again. If the cause of the problem is not found, contact the technical communicator at your dealership for possible consultation with Caterpillar. This consultation may greatly reduce repair time and repair costs. If the cause of the diagnostic code is not found and the ECM must be replaced, refer to the Testing and Adjusting, "Electronic Control Module (ECM) - Replace" Story in this manual for details.STOP