New Holland 4196 – CCU: EHR No. 3 Motor Mode Switch Fault

The Central Control Unit (CCU) has detected a malfunction in the motor mode switch for the No. 3 rear electro-hydraulic remote (EHR) valve. This switch is a critical input that determines the operational mode of the third rear remote valve, and a failure indicates the controller cannot accurately read the operator's commands for this specific hydraulic circuit.

• T6000 Series
• T6010
• T6020
• T6030
• T6040
• T6050
• T6060
• T6070
• T7 Series
• T7.170
• T7.175
• T7.190
• T7.210
• T7.220
• T7.235
• T7.245
• T7.250
• T7.260
• T7.270
• T8 Series
• T9 Series

1. 1

   Access the tractor's built-in diagnostic menu (H Menu) to perform a switch operation test.

2. 2

   Navigate to the H5 menu and operate the No. 3 EHR motor mode switch; verify if code 'd97' appears on the display and an audible tone is emitted.

3. 3

   Perform a 'wiggle test' on the wiring harness leading from the EHR valve to the control module if the 'd97' code does not appear, to check for intermittent connections or breaks.

4. 4

   Review all active and stored fault codes for related communication or power supply issues.

5. 5

   Attempt to clear the fault codes using the HC or H8 menu to see if the fault is active and returns immediately.

1. 1

   Confirm the fault

   Use the diagnostic checks outlined above to confirm that the fault is with the No. 3 EHR valve's motor mode switch circuit.

2. 2

   Inspect wiring and connectors

   Thoroughly inspect the wiring harness and connectors going to the No. 3 rear remote valve for any signs of damage, corrosion, or loose connections. Repair any wiring issues found.

3. 3

   Swap components for diagnosis

   If the tractor has more than three remotes, swap electrical connectors between valve No. 3 and another valve (e.g., No. 2 or No. 4). If the fault code changes (e.g., to 4195 or 4197), the fault lies within the valve assembly itself. If the code remains 4196, the issue is in the wiring harness.

4. 4

   Replace the EHR valve section

   If the switch is confirmed to be faulty and the wiring is intact, replace the entire electro-hydraulic remote valve section for that remote. The switch is an integral component of the valve assembly and cannot be replaced separately.

5. 5

   Program the new valve

   After installing a new valve assembly, it must be programmed to the correct position (No. 3). Access the tractor's diagnostic 'HJ' menu to renumber and calibrate the new EHR valve.