John Deere 522379.17 – Rear Chassis Module (PLC): Park Lock Solenoid Low Amp Draw Solenoid 2 Direct Drive

The controller has detected that the current (amp draw) flowing to Park Lock Solenoid 2 is too low. This typically indicates an open circuit, a break in the wiring, high resistance at a connector, or a failed solenoid coil internally.

• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R

1. 1

   Inspect the wiring harness and connectors (X340/1 or X340/2) leading to the Y15/2 Park Lock Solenoid Valve 2 for physical damage, loose pins, or corrosion.

2. 2

   Use a multimeter to inspect the circuit between the PLC module and the solenoid for any open connections or breaks in the wire.

3. 3

   Measure the resistance and current flow of the solenoid valve coil using a multimeter to check for an open circuit or incorrect current draw.

4. 4

   Ensure that the solenoid valve circuit is properly grounded, as a poor ground can cause a low current flow reading.

1. 1

   Secure the Machine

   Ensure the tractor is parked on a flat surface and securely chocked so it cannot roll.

2. 2

   Disconnect Power

   Disconnect the tractor's battery to prevent electrical shorts during the repair.

3. 3

   Locate the Solenoid

   Locate Park Lock Solenoid 2 (Y15/2) on the DirectDrive transmission valve block.

4. 4

   Disconnect Harness

   Carefully unplug the electrical connector from the defective solenoid.

5. 5

   Remove the Solenoid

   Remove the retaining hardware (screws or bolts) securing the solenoid to the transmission block and pull the solenoid out. Have a rag ready to catch any residual transmission fluid.

6. 6

   Install the New Solenoid

   Lubricate the O-rings on the new solenoid with clean transmission fluid. Insert it into the valve block and torque the retaining hardware to OEM specifications.

7. 7

   Reconnect

   Plug the electrical connector back into the new solenoid, ensuring it clicks securely into place.

8. 8

   Test

   Reconnect the battery. Use a diagnostic tool to clear the 522379.17 fault code from the PLC module. Start the tractor and test the park lock engagement and disengagement to verify the repair.