New Holland TMF 150 – TMF (Tractor Multi-Function) Controller: Implement feedback #2 out of range Low

This fault code indicates that the feedback sensor for implement #2 (typically a position sensor or potentiometer associated with the rear hitch or an electro-hydraulic remote valve) is returning a voltage signal that is below the acceptable minimum threshold. This condition usually points to an open circuit, a short to ground in the sensor wiring, or an internal failure of the sensor itself.

• TG210
• TG215
• TG230
• TG245
• TG255
• TG275
• TG285
• TG305
• T8010
• T8020
• T8030
• T8040
• T8050
• Magnum
• MX/TG Series
• MX210
• MX305

1. 1

   Visual Inspection: Inspect the wiring harness running from the TMF controller to the implement #2 feedback sensor (located near the rear hitch or remote valves). Look for chafed wires, pinched harnesses, or melted insulation.

2. 2

   Connector Check: Disconnect the sensor and check for corrosion, moisture, or bent pins inside the connector.

3. 3

   Voltage Test: Turn the key to the ON position and check for a 5V reference supply at the sensor connector. If the 5V supply is missing, trace the wire back to the TMF controller to check for an open circuit.

4. 4

   Continuity/Short Test: Test the signal wire for continuity back to the TMF controller, and ensure it is not shorted to ground.

1. 1

   Disconnect Power

   Turn off the tractor and disconnect the negative battery cable to prevent electrical spikes.

2. 2

   Repair Wiring

   If the diagnostic checks revealed a short to ground or a broken wire in the harness, repair the damaged section using weather-sealed heat shrink connectors, or replace the affected harness section.

3. 3

   Replace the Sensor

   If the wiring and 5V reference are intact, the sensor itself has failed. Remove the mounting hardware securing the implement #2 feedback sensor, remove the old sensor, and install the replacement.

4. 4

   Reassemble and Power Up

   Reconnect the sensor harness and the battery.

5. 5

   Clear Codes and Calibrate

   Use a diagnostic tool to clear the TMF 150 fault code. You must then perform a hitch/implement calibration procedure (often done via the tractor's display monitor or a dealer laptop) so the TMF controller can learn the new sensor's minimum and maximum voltage ranges.