New Holland 4118 – Rear Electronic Hydraulic Remotes: Rear Remote No. 2 Under Voltage

The EHR (Electro-Hydraulic Remote) control module has detected that the voltage in the electrical circuit for the No. 2 rear electro-hydraulic remote valve is below the normal operating range. This condition indicates a potential open circuit, a high-resistance connection, or a faulty solenoid coil, which can prevent the proper operation of the remote valve.

• T7.170
• T7.175
• T7.185
• T7.190
• T7.200
• T7.210
• T7.220
• T7.225
• T7.230
• T7.235
• T7.245
• T7.250
• T7.260
• T7.270
• T7050

1. 1

   Visually inspect the wiring harness and connectors leading to the number 2 rear remote valve solenoid for damage, corrosion, loose connections, or chafing. Specifically check the plug under the cab, above the battery, to ensure it is properly connected.

2. 2

   With the ignition on, check the system voltage at the connector for the number 2 remote valve solenoid using a multimeter and compare to manufacturer specifications.

3. 3

   Perform a wiggle test by gently moving the wiring harness and connectors while monitoring voltage or live data to check for intermittent open or short circuits.

4. 4

   Disconnect the solenoid for the number 2 remote valve and measure its resistance with a multimeter, comparing the reading to OEM specifications.

5. 5

   Swap the solenoid from remote number 2 with a known good solenoid from another remote. If the fault code follows the solenoid, the solenoid is faulty; if it remains, the issue is in the wiring or controller.

1. 1

   Safety First

   Park the tractor on a level surface, shut it down, and relieve any residual hydraulic pressure.

2. 2

   Access the Remote Valve

   Locate the number 2 rear remote valve assembly. This is typically at the rear of the tractor.

3. 3

   Repair Wiring

   If any damaged wiring or corroded connectors are found during the diagnostic checks, repair or replace them as necessary. Ensure all connections are clean and secure.

4. 4

   Replace the Solenoid

   If the solenoid is determined to be faulty, disconnect the electrical connector and remove the solenoid from the valve block. Install the new solenoid, ensuring any seals or O-rings are correctly seated.

5. 5

   Replace the Valve Section

   In some cases, the entire valve section may need to be replaced if the issue is internal to the valve and not just the solenoid.

6. 6

   Clear Fault Codes

   After the repair, use a diagnostic tool to clear the fault code from the controller's memory.

7. 7

   Test Operation

   Start the tractor and test the function of the number 2 rear remote to ensure it is operating correctly. Check for any hydraulic leaks.