Case IH 4103 – EHR (Electronic Hitch/Hydraulic Remote) Controller: Rear remote no. 1 – switched to failsafe

The system has detected an anomaly with the Rear Remote Valve No. 1 (such as a calibration error, internal EEPROM fault, or communication issue). To prevent unintended hydraulic operation, erratic flow, or equipment damage, the controller has disabled the valve and placed it into a protective "failsafe" mode.

• Maxxum
• Steiger T4B
• MAXXUM T4E
• VESTRUM CVX
• Magnum series (235, 245, 260, 290, 315, 340)
• Steiger series (350 to 600)
• Puma series (130, 145, 160, 165, 180, 195, 210, 225)
• Maxxum / MXU series
• Farmall series (115U Pro EP)

1. 1

   Check for accompanying EHR fault codes (e.g., 4100, 4101, 4104-4112) such as under voltage or faulty potentiometer to pinpoint the exact electrical or mechanical failure.

2. 2

   Power cycle the tractor by turning it off, waiting a few moments, and turning the key back on to clear potential temporary communication glitches.

3. 3

   Inspect the wiring harness and connector at the Rear Remote No. 1 valve (often connector X305) for corrosion, pushed pins, or wire chafing.

4. 4

   Attempt to recalibrate the remote valve spool using the tractor's display monitor or the Electronic Service Tool (EST) in case it lost its calibration point.

1. 1

   Relieve Pressure

   Park the tractor on a level surface, lower all implements, turn off the engine, and cycle the remote levers/switches to relieve all hydraulic pressure in the system.

2. 2

   Access the Valve Stack

   Locate the rear remote valve block at the rear of the tractor. Identify the No. 1 valve slice (usually the first one in the stack).

3. 3

   Disconnect Harness

   Carefully unplug the electrical connector from the No. 1 EHR valve slice.

4. 4

   Remove the Valve Slice

   Unbolt the tie rods holding the remote valve stack together. Carefully slide out the faulty No. 1 remote valve slice, ensuring you do not lose or damage the O-rings between the slices.

5. 5

   Install the New Valve

   Install the replacement EHR valve slice with new O-rings. Re-torque the valve stack tie rods to the manufacturer's specifications.

6. 6

   Reconnect & Calibrate

   Reconnect the electrical harness. Turn the key on, clear the stored fault codes, and use the tractor's display or EST to perform the mandatory valve spool calibration procedure.

7. 7

   Test

   Start the tractor, check for hydraulic leaks, and verify normal operation of the No. 1 remote.