Case IH 6014 – Hitch Controller, Armrest Controller, or TMF (Tractor Multi-Function) Controller: Hitch Lower Solenoid is failed open or shorted to the ground

The controller detects that the circuit for the hitch's lowering solenoid is incomplete (open circuit, such as a broken wire or burnt-out coil) or has shorted out to the ground. This condition prevents the hitch from receiving the command to lower.

• MX Magnum
• STX Steiger
• MX Magnum series
• Magnum series
• STX Steiger series
• Steiger series
• CX series
• 8900 series

1. 1

   Disconnect the wiring harness at the hitch controller connector (e.g., C058). Test the resistance of the hitch lower solenoid to determine if the coil itself has failed open.

2. 2

   Test the continuity of the wiring harness from the hitch controller to the hitch lower solenoid to rule out a broken wire.

3. 3

   Inspect the wiring harness between the controller and the solenoid for rubbed or pinched areas that could cause a short to ground.

1. 1

   Locate valve block

   Locate the hitch control valve block on the tractor (typically at the rear near the hitch assembly).

2. 2

   Inspect wiring connector

   Inspect the wiring connector directly at the hitch lower solenoid. Clean any corrosion and ensure the connection is tight.

3. 3

   Repair or replace wiring harness

   If the diagnostic tests reveal a wiring fault, repair or replace the damaged section of the wiring harness.

4. 4

   Replace solenoid if necessary

   If the wiring is intact but the solenoid fails the resistance test, the solenoid must be replaced.

5. 5

   Relieve hydraulic pressure

   Safety First: Relieve all hydraulic pressure from the hitch system before removing the solenoid.

6. 6

   Remove faulty solenoid

   Unscrew and remove the faulty hitch lower solenoid from the valve block.

7. 7

   Install new solenoid

   Install the new solenoid, ensuring all O-rings are properly seated and lubricated with clean hydraulic fluid.

8. 8

   Reconnect electrical harness

   Reconnect the electrical harness.

9. 9

   Clear fault codes and test

   Clear the fault codes from the controller and test the hitch operation to verify the repair.