Deluxe Hydraulic Control Unit (SCU) Diagnostic Trouble Codes

Deluxe Hydraulic Control Unit (SCU) Diagnostic Trouble Codes
Diagnostic Trouble Code Display Solution
SCU 000158.04
SCU 000168.04		 Hydraulic System SCU Supply Voltage Problem. Visually inspect around the batteries and alternator for any visual signs of damage or accumulated debris. Have your John Deere dealer repair as soon as possible.
SCU 000629.12 Hydraulic System SCU Control Unit Fault. Have your John Deere dealer repair as soon as possible.
SCU 000630.02
SCU 000630.13		 Hydraulic System SCU Not Calibrated. Have your John Deere dealer calibrate as soon as possible.
SCU 001079.03
SCU 001079.04		 Hydraulic System SCU Option Connector Voltage Problem. Check implement documentation. Have your John Deere dealer repair as soon as possible.
SCU 001638.02 Hydraulic System SCU Calibration Fault/Hydraulic Oil Temperature Low. Have your John Deere dealer calibrate as soon as possible.
SCU 001913.13
SCU 001914.13		 Hydraulic System SCU Calibration Fault/SCV I Not Calibrated. Have your John Deere dealer calibrate as soon as possible.
SCU 001915.05 Hydraulic System SCV I Flow Control Solenoid Current Low for Float Operation. Have your John Deere dealer repair as soon as possible.
SCU 001925.13
SCU 001926.13		 Hydraulic System SCU Calibration Fault/SCV II Not Calibrated. Have your John Deere dealer calibrate as soon as possible.
SCU 001927.05 Hydraulic System SCV II Flow Control Solenoid Current Low for Float Operation. Have your John Deere dealer repair as soon as possible.
SCU 001937.13
SCU 001938.13		 Hydraulic System SCU Calibration Fault/SCV III Not Calibrated. Have your John Deere dealer calibrate as soon as possible.
SCU 001939.05 Hydraulic System SCV III Flow Control Solenoid Current Low for Float Operation. Have your John Deere dealer repair as soon as possible.
SCU 001949.13
SCU 001950.13		 Hydraulic System SCU Calibration Fault/SCV IV Not Calibrated. Have your John Deere dealer calibrate as soon as possible.
SCU 001951.05 Hydraulic System SCV IV Flow Control Solenoid Current Low for Float Operation. Have your John Deere dealer repair as soon as possible.
SCU 002005.09 Communication System ACU Message Missing. Have your John Deere dealer repair as soon as possible.
SCU 002049.09 Communication System CAB Message Missing. Have your John Deere dealer repair as soon as possible.
SCU 002071.09 Communication System CCU Message Missing. Have your John Deere dealer repair as soon as possible.
SCU 002602.18 Hydraulic System Hydraulic Oil Level Low. Check transmission-hydraulic oil level.
SCU 523652.02 Hydraulic System Wire Connector Fault. Have your John Deere dealer repair as soon as possible.
SCU 523693.02 Hydraulic System Missing SCV I External Control Message. Refer to implement documentation. If code continues, have your John Deere dealer repair as soon as possible.
SCU 523693.19 Hydraulic System SCV I External Control Fault Message Received. Refer to implement documentation. If code continues, have your John Deere dealer repair as soon as possible.
SCU 523694.02 Hydraulic System Missing SCV II External Control Message. Refer to implement documentation. If code continues, have your John Deere dealer repair as soon as possible.
SCU 523694.19 Hydraulic System SCV II External Control Fault Message Received. Refer to implement documentation. If code continues, have your John Deere dealer repair as soon as possible.

 

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Deluxe Hydraulic Control Unit (SCU) Diagnostic Trouble Codes
Diagnostic Trouble Code Display Solution
SCU 523785.01 Hydraulic System Lost Laser Signal Secondary Scraper (laser implement). Check laser adjustment. Operate in a more level part of the field. If code returns, have your John Deere dealer repair as soon as possible.
SCU 523786.01 Hydraulic System Lost Laser Signal Primary Scraper (laser implement). Check laser adjustment. Operate in a more level part of the field. If code returns, have your John Deere dealer repair as soon as possible.
SCU 523786.03
SCU 523786.04		 Hydraulic System SCVs I - IV Remote Position Sensor Circuit Voltage Problem. Have your John Deere dealer repair as soon as possible.
SCU 523786.07 Hydraulic System SCVs I - IV Remote Position Sensor 1 Fault/Unexpected Response. Insure SCV hoses are connected correctly and are not reversed. If code returns, have your John Deere dealer repair as soon as possible.
SCU 523787.03
SCU 523787.04		 Hydraulic System SCU Switched Supply Voltage Problem/SCVs III and IV Solenoids. Visually inspect around the batteries and alternator for any visual signs of damage or accumulated debris. Check fuse F30. If code returns, have your John Deere dealer repair as soon as possible.
SCU 523788.02 Hydraulic System Hydraulic Option Configuration Changed Since Power-Up. Refer to implement documentation.
SCU 523788.14 Hydraulic System Hydraulic Option Configuration Changed Without Disconnect. Refer to implement documentation.
SCU 523788.31 Hydraulic System Hydraulic Option Configuration Invalid. Implement EHDC unhooked with key ON. Reconnect to implement with key ON. ALWAYS turn key OFF before disconnecting.
SCU 523923.31 Hydraulic System SCV I Control Lever Command Missing. Have your John Deere dealer repair as soon as possible.
SCU 523932.05
SCU 523932.06		 Hydraulic System SCV IV Extend Valve Solenoid Current Problem. Have your John Deere dealer repair as soon as possible.
SCU 523933.05
SCU 523933.06		 Hydraulic System SCV III Extend Valve Solenoid Current Problem. Have your John Deere dealer repair as soon as possible.
SCU 523934.05
SCU 523934.06		 Hydraulic System SCV II Extend Valve Solenoid Current Problem. Have your John Deere dealer repair as soon as possible.
SCU 523935.05
SCU 523935.06		 Hydraulic System SCV I Extend Valve Solenoid Current Problem. Have your John Deere dealer repair as soon as possible.
SCU 523938.05
SCU 523938.06		 Hydraulic System SCV IV Retract Valve Solenoid Current Problem. Have your John Deere dealer repair as soon as possible.
SCU 523939.05
SCU 523939.06		 Hydraulic System SCV III Retract Valve Solenoid Current Problem. Have your John Deere dealer repair as soon as possible.
SCU 523940.05
SCU 523940.06		 Hydraulic System SCV II Retract Valve Solenoid Current Problem. Have your John Deere dealer repair as soon as possible.
SCU 523941.05
SCU 523941.06		 Hydraulic System SCV I Retract Valve Solenoid Current Problem. Have your John Deere dealer repair as soon as possible.
SCU 523944.31 SCV IV On Operator Out Of Seat With SCV IV On. See Operator Presence Sensor in Hydraulics and Selective Control Valves section.
SCU 523945.31 SCV III On Operator Out Of Seat With SCV III On. See Operator Presence Sensor in Hydraulics and Selective Control Valves section.
SCU 523946.31 SCV II On Operator Out Of Seat With SCV II On. See Operator Presence Sensor in Hydraulics and Selective Control Valves section.

 

OURX935,0000568 -19-23AUG07-2/3

Deluxe Hydraulic Control Unit (SCU) Diagnostic Trouble Codes
Diagnostic Trouble Code Display Solution
SCU 523947.31 SCV I On Operator Out Of Seat With SCV I On. See Operator Presence Sensor in Hydraulics and Selective Control Valves section.
SCU 524015.02 Hydraulic System Missing SCV III External Control Message for 10 Seconds. Refer to implement documentation. If code returns, have your John Deere dealer repair as soon as possible.
SCU 524015.09 Communication System Missing SCV III External Control Message for 1 Second. Refer to implement documentation.
SCU 524015.19 Hydraulic System SCV III External Control Fault Message Received. Refer to implement documentation. If code returns, have your John Deere dealer repair as soon as possible.
SCU 524016.03
SCU 524016.04		 Hydraulic System SCU Switched Supply Voltage Problem/SCVs I and II Solenoids. Visually inspect around the batteries and alternator for any visual signs of damage or accumulated debris. Check fuse F30. Have your John Deere dealer repair as soon as possible.
SCU 524038.02 Hydraulic System Missing SCV IV External Control Message for 10 Seconds. Refer to implement documentation. If code returns, have your John Deere dealer repair as soon as possible.
SCU 524038.09 Communication System Missing SCV IV External Control Message for 1 Second. Refer to implement documentation.
SCU 524038.19 Hydraulic System SCV IV External Control Lever Fault Message Received. Refer to implement documentation. If code returns, have your John Deere dealer repair as soon as possible.
SCU 524103.31 Hydraulic System SCV IV Control Lever Command Missing. Have your John Deere dealer repair as soon as possible.
SCU 524104.31 Hydraulic System SCV III Control Lever Command Missing. Have your John Deere dealer repair as soon as possible.
SCU 524105.31 Hydraulic System SCV II Control Lever Command Missing. Have your John Deere dealer repair as soon as possible.

 

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