HYDRAULIC HO 0789017 - Caterpillar

This diagnostic code is associated with the Left Drive (Forward) Pump Solenoid. The FMI 13 means that the ECM has determined that the solenoid needs calibration. Once the calibration for the solenoid valve has been performed successfully, this diagnostic code will disappear. This failure is active on a new ECM.Possible causes of this diagnostic code are listed below:
The ECM has been replaced or new software has been installed.
The calibration procedure has failed.System Response:The deadband in the control lever may be excessive. The operation of the control lever may be jerky.Note: Ensure that you have repaired any condition that would cause other active diagnostic codes that are related to this solenoid. For example, the CID 1703 FMI 03, FMI 05 and FMI 06 are not active when the CID 1703 FMI 13 is active. If the other diagnostic codes are active, troubleshoot those codes first. Then perform this procedure.Note: Ensure that the diagnostic code of CID 1703 FMI 13 is active before performing this procedure.Test Step 1. Check The Calibration
Perform the calibration procedure. Refer to the Testing and Adjusting section of this Service Manual for the correct procedure.
Observe the status of the CID 1703 FMI 13. Expected Result:The CID 1703 FMI 13 is active.Results:
YES - The CID 1703 FMI 13 is active. The diagnostic code has not been corrected. Verify that the correct software has been flashed into the ECM, or that the correct ECM is installed on the machine. Then repeat the calibration.Repair: If the diagnostic code is still active and the cause of the diagnostic code is not found, replace the ECM. The ECM is unlikely to have failed. Exit this procedure and perform this troubleshooting procedure again. Prior to replacing an ECM, always contact your Dealer Technical Communicator for possible consultation with Caterpillar. This consultation may greatly reduce repair time. If the ECM must be replaced, refer to Testing and Adjusting, "Electronic Control Module (ECM) - Replace".STOP
NO - The CID 1703 FMI 13 is not active. The calibration corrected the condition that caused the diagnostic code. Repair: Resume normal operation.STOP