| Steering System Control Unit (SSU) Diagnostic Trouble Codes |
| Diagnostic Trouble Code |
Display |
Solution |
| SSU 000084.09 |
Communication System |
Wheel Speed Message Missing. Have your John Deere dealer repair as soon as possible. |
SSU 000168.03
SSU 000168.04 |
Steering System |
SSU Unswitched Supply Voltage Problem. Check fuse F23. If code returns, have your John Deere dealer repair as soon as possible. |
| SSU 000237.31 |
Identification System |
Vehicle Identification Number. |
| SSU 000517.09 |
Communication System |
GPS Speed Message Missing. Check StarFire connector. If code returns, have your John Deere dealer repair as soon as possible. |
| SSU 000523.09 |
Communication System |
MST Current Gear Message Missing. Have your John Deere dealer repair as soon as possible. |
| SSU 000523.31 |
Communication System |
No Transmission Detected. Have your John Deere dealer repair as soon as possible. |
| SSU 000524.09 |
Communication System |
Selected Gear Message Missing. Restart vehicle. If code returns, have your John Deere dealer repair as soon as possible. |
| SSU 000628.02 |
Steering System |
SSU EOL Data Fault. Have your John Deere dealer repair as soon as possible. |
| SSU 000628.12 |
Programming |
SSU Programming. |
| SSU 000629.12 |
Steering System |
SSU Control Unit Fault. Have your John Deere dealer repair as soon as possible. |
| SSU 000630.13 |
AutoTrac System |
SSU Calibration Fault/Not Calibrated. Have your John Deere dealer repair as soon as possible. |
SSU 001079.03
SSU 001079.04 |
Steering System |
SSU Sensor Supply Voltage Problem. Have your John Deere dealer repair as soon as possible. |
| SSU 001504.09 |
Communication System |
Operator Presence Message Missing. Have your John Deere dealer repair as soon as possible. |
| SSU 001504.14 |
AutoTrac System |
Operator Not Seated While AutoTrac Active. |
| SSU 001638.09 |
Communication System |
Hydraulic Oil Temperature Message Missing. Have your John Deere dealer repair as soon as possible. |
| SSU 001807.02 |
Steering System |
Steering Wheel Position Sensor Conflict. Have your John Deere dealer repair as soon as possible. |
SSU 001807.03
SSU 001807.04 |
Steering System |
Steering Wheel Position Sensor 1 Supply Voltage Problem. Have your John Deere dealer repair as soon as possible. |
SSU 001807.05
SSU 001807.06 |
Steering System |
Steering Wheel Position Sensor 1 Circuit Current Problem. Have your John Deere dealer repair as soon as possible. |
SSU 001807.10
SSU 001807.14 |
Steering System |
Steering Wheel Position Sensor 1 Signal Problem. Have your John Deere dealer repair as soon as possible. |
| SSU 001865.09 |
Communication System |
ELX Message Missing. Have your John Deere dealer repair as soon as possible. |
| SSU 522273.00 |
Steering System |
SSU Steering Valve Control Circuit Command High. Have your John Deere dealer repair as soon as possible. |
| SSU 522273.01 |
Steering System |
SSU Steering Valve Control Circuit Command Low. Have your John Deere dealer repair as soon as possible. |
| SSU 522387.07 |
Steering System |
AutoTrac Wheel Angle Sensor or Steering Valve Fault. Have your John Deere dealer repair as soon as possible. |
| Steering System Control Unit (SSU) Diagnostic Trouble Codes |
| Diagnostic Trouble Code |
Display |
Solution |
| SSU 522394.09 |
Communication System |
TCM Messages Missing. Check StarFire connector. If code returns, have your John Deere dealer repair as soon as possible. |
SSU 523451.00
SSU 523451.01 |
Steering System |
Secondary Steering Angle Voltage Problem. Have your John Deere dealer repair as soon as possible. |
| SSU 523451.14 |
Steering System |
Secondary Steering Angle Redundancy Fault. Have your John Deere dealer repair as soon as possible. |
| SSU 523651.02 |
Steering System |
SSU Control Unit Fault. Have your John Deere dealer repair as soon as possible. |
| SSU 523698.09 |
Communication System |
AMS Display Message Missing. Check GPS/Mobile Processor connector. If code returns, have your John Deere dealer repair as soon as possible. |
| SSU 523767.09 |
Communication System |
Resume Switch Message Missing. Have your John Deere dealer repair as soon as possible. |
| SSU 523795.02 |
Steering System |
AutoTrac Steering Valve Workport Connections Backwards. Have your John Deere dealer repair as soon as possible. |
| SSU 523795.11 |
Steering System |
AutoTrac Steering Valve Deadbands Inconsistent. Have your John Deere dealer repair as soon as possible. |
| SSU 523795.12 |
Steering System |
AutoTrac Steering Valve Fault. Have your John Deere dealer repair as soon as possible. |
| SSU 523795.13 |
Steering System |
SSU Calibration Fault/Steering Valve. Have your John Deere dealer repair as soon as possible. |
| SSU 523810.00 |
Steering System |
SSU Steering Valve Power Status Incorrect. Have your John Deere dealer repair as soon as possible. |
| SSU 523810.01 |
Steering System |
SSU Steering Valve Supply Voltage Low. Have your John Deere dealer repair as soon as possible. |
| SSU 523821.02 |
Steering System |
Vehicle Mismatch. Have your John Deere dealer repair as soon as possible. |
SSU 523824.03
SSU 523824.04 |
Steering System |
Steering Wheel Position Sensor 2 Supply Voltage Problem. Have your John Deere dealer repair as soon as possible. |
SSU 523824.05
SSU 523824.06 |
Steering System |
Steering Wheel Position Sensor 2 Circuit Current Problem. Have your John Deere dealer repair as soon as possible. |
| SSU 523824.10 |
Steering System |
Steering Wheel Position Sensor 2 Signal Mismatch. Have your John Deere dealer repair as soon as possible. |
| SSU 523824.14 |
Steering System |
Steering Wheel Position Sensor 2 Signal Fault. Have your John Deere dealer repair as soon as possible. |
SSU 523826.00
SSU 523826.01 |
Steering System |
Primary Steering Sensor Voltage Problem. Have your John Deere dealer repair as soon as possible. |
SSU 523826.02
SSU 523826.07 |
Steering System |
SSU Calibration Fault/Steering Angle Sensor. Have your John Deere dealer repair as soon as possible. |
SSU 523826.10
SSU 523826.12 |
Steering System |
Steering Angle Sensor Uncommanded Motion. Have your John Deere dealer repair as soon as possible. |
| SSU 523826.14 |
Steering System |
Steering Angle Sensor Low Motion. Have your John Deere dealer repair as soon as possible. |
| SSU 524221.09 |
Communication System |
Vehicle Yaw Rate Message Missing. Have your John Deere dealer repair as soon as possible. |