New Holland EHR 4302 – EHR (Electro-Hydraulic Remote) Controller: Rear Remote No.6 - Implausible EHR Control Messages

This code indicates a CAN bus communication error where the electronic control system is receiving invalid, erratic, or conflicting data messages regarding the #6 rear remote valve. This typically means there is a signal plausibility issue between the operator's armrest controls (joystick/levers) and the valve's internal controller, or the valve is failing to report its position correctly over the network.

• T8.xxx Series
• T9 Series
• T6 Series (T6.120 - T6.180)
• T7 Series (T7.170 - T7.210)
• TSA Plus/Deluxe Series
• Magnum 235-340 (Series 4)
• Steiger equivalents

1. 1

   Verify tractor battery voltage and ground connections, as low voltage or spikes can cause CAN communication errors.

2. 2

   Inspect the wiring harness and the electrical connector directly at the #6 rear remote valve slice for moisture, corrosion, bent pins, or chafed wires.

3. 3

   Perform a component isolation (swap test) by swapping the electrical connector from the #6 remote valve to an adjacent remote (e.g., #5) to determine if the fault follows the valve or stays with the wiring/controller.

4. 4

   Check if the EHR lever/joystick has lost its calibration, which can cause the controller to read the lever's position as implausible.

1. 1

   Power Down

   Turn off the tractor and disconnect the battery to safely reset the electronic control systems.

2. 2

   Clean Connections

   Disconnect the harness at the #6 rear remote valve. Clean the contacts with electronic contact cleaner and apply dielectric grease to prevent moisture intrusion. Reconnect the harness securely.

3. 3

   Re-calibrate the Valve

   Reconnect the battery and turn the key on. Access the tractor's display monitor and navigate to the Electro-Hydraulic Control Valve configuration menu.

4. 4

   Stroke the Valve

   Initiate the calibration process for the #6 remote. Stroke the valves back and forth manually to clear internal debris before calibration. Follow the on-screen prompts to allow the system to learn the valve's neutral and end-stop positions.

5. 5

   Replace Components

   If the valve fails to calibrate or the code immediately returns, replace the faulty EHR valve section or the EHR control switch/potentiometer on the armrest (depending on the results of your swap test).

6. 6

   Clear Codes

   Use the tractor's diagnostic menu or a specialized dealer diagnostic tool to clear the EHR 4302 code and verify normal operation.