Case IH U160 – EHR (Electronic Hitch/Hydraulic Remote) Controller / Central Controller: Incorrect sequence detected when renumbering the rear valves

This code indicates that the electronic renumbering procedure for the tractor's hydraulic remote valves was not completed correctly. The system specifically flags that Step 9 (or the final step) of the renumbering procedure was missed or failed to register.

• Puma Series (165, 180, 195, 210, 225 CVX)
• Magnum Series (MX210, MX230, MX255, MX285)
• MXM Series (120, 130, 140, 155, 175, 190)
• Steiger Series
• Farmall Series (115U)

1. 1

   Verify Connections: Ensure that all rear remote valves are physically plugged into the wiring harness. The system cannot complete the renumbering sequence if a valve is disconnected.

2. 2

   Check CAN-BUS Wiring: If the valves are completely inoperative, inspect the CAN-BUS wiring between the remote valves and the central controller for shorts, breaks, or corrosion.

3. 3

   Verify Procedure Isolation: Ensure that the renumbering procedure for one complete set of valves (e.g., all rear valves) is completed in its entirety before attempting to renumber another set (e.g., mid-mount valves).

1. 1

   Turn the ignition key switch to the ON position.

2. 2

   Ensure all rear remote valves are connected to the harness.

3. 3

   Navigate the tractor's H-menus on the display and select the HJ menu by depressing the "menu" key.

4. 4

   Verify that the upper section of the display shows "EEhr".

5. 5

   Execute the EHR valve renumbering procedure exactly as prompted by the display.

6. 6

   Pay particular attention to ensure that Step 9 (the final confirmation step in the renumbering procedure) is fully completed and saved before exiting the menu.

   Crucial Step

7. 7

   Test the remote valves. If the valves are still inoperative and the code returns, perform a continuity check on the CAN-BUS wiring between the remotes and the central controller.

8. 8

   If the wiring is intact but the fault persists, reload the software into the central controller as dictated by the service manual.

9. 9

   If reloading the software fails to resolve the issue, replace the EHR processor/controller.