John Deere 522847.18 – XMC / XMA / TMA: Steering Control Valve, Current Too Low

The current in the return line of the steering control valve's left-steer solenoid is below the acceptable threshold. This condition typically suggests a short to ground or an open circuit in the wiring, which impairs the valve's ability to function properly and disables the AutoTrac™ or ActiveCommand Steering (ACS) systems.

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 8245R
• 8270R
• 8295R
• 8320R
• 8345R
• 8400R
• 8310RT
• 8335RT
• 8360RT
• 7R Series
• 7J Series
• 6145J
• 6165J
• 6180J
• 6205J

1. 1

   Inspect the electrical wiring harness running from the steering control module (XMC/XMA/TMA) to the steering control valve for pinched, chafed, or frayed wires.

2. 2

   Disconnect the harness at the steer left solenoid and check for pushed-back pins, corrosion, or moisture inside the connector.

3. 3

   Use a multimeter to check the return line of the steer left solenoid for a short to ground or an open circuit.

4. 4

   Measure the internal resistance of the steer left solenoid coil to determine if the coil itself has failed internally.

1. 1

   Power down the tractor and disconnect the battery to prevent electrical spikes.

   Power down the tractor and disconnect the battery to prevent electrical spikes.

2. 2

   Locate the electro-hydraulic steering control valve assembly.

   Locate the electro-hydraulic steering control valve assembly (location varies by model, often under the cab or near the front axle/steering linkage).

3. 3

   Disconnect the electrical connector specifically for the "Steer Left" solenoid.

   Disconnect the electrical connector specifically for the "Steer Left" solenoid.

4. 4

   Repair the damaged section of the harness or replace the harness overlay.

   If the diagnostic tests revealed a wiring issue, repair the damaged section of the harness or replace the harness overlay.

5. 5

   Replace the solenoid coil or replace the entire electro-hydraulic steering control valve assembly.

   If the wiring is intact but the solenoid failed the resistance test, replace the solenoid coil (if available separately for your specific valve) or replace the entire electro-hydraulic steering control valve assembly.

6. 6

   Reconnect the wiring harness and the battery.

   Reconnect the wiring harness and the battery.

7. 7

   Turn the key to the ON position and clear the stored diagnostic trouble codes.

   Turn the key to the ON position and use the GreenStar™ display or Service ADVISOR tool to clear the stored diagnostic trouble codes.

8. 8

   Perform the steering system calibration procedure.

   If the entire steering control valve was replaced, perform the steering system calibration procedure via the monitor to ensure the new proportional valve centers correctly.