New Holland ENG 3003 – Engine Control Module (ECM): Foot Throttle Sensor - Signal Below Range Min.

This code indicates that the voltage signal returning from the foot throttle position sensor has dropped below the minimum acceptable threshold programmed into the controller. Technically, this usually points to an open circuit, a short to ground in the sensor's signal wire, a loss of the 5V reference voltage, or an internal failure of the sensor itself.

• T5
• T6
• T7
• T8
• T9
• Workmaster 60
• Workmaster 70
• CR9090
• CX8080
• CX8090
• L218
• L220
• L225
• C227
• C232
• C238

1. 1

   Inspect the foot throttle sensor and its wiring harness for physical damage, chafing, or pinched wires.

2. 2

   Disconnect the sensor and inspect the pins for corrosion, moisture, or pushed-out pins that could cause an open circuit.

3. 3

   Turn the key to the ON position (engine off) and use a multimeter to verify that the sensor is receiving the proper 5V reference voltage and a solid ground from the Engine ECU.

4. 4

   Test the signal wire between the sensor connector and the Engine ECU harness for continuity, and check that the signal wire is not shorted to ground.

5. 5

   Perform a sweep test: monitor the sensor's voltage output with a diagnostic scan tool or multimeter while slowly depressing the pedal. If voltage drops out, spikes, or remains below minimum despite a good 5V supply, the sensor has failed internally.

1. 1

   Power Down

   Turn off the machine, remove the key, and disconnect the negative battery cable to prevent electrical shorts during repair.

2. 2

   Locate the Sensor

   Access the foot throttle assembly located on the floorboard of the cab.

3. 3

   Disconnect

   Unplug the electrical connector from the foot throttle sensor.

4. 4

   Removal

   Depending on the specific model, either remove the mounting screws securing the sensor to the pedal bracket, or unbolt the entire foot pedal assembly from the floor (on many skid steers, the sensor and pedal are replaced as a single unit).

5. 5

   Installation

   Mount the new sensor or pedal assembly into position and tighten the retaining hardware.

6. 6

   Reconnect

   Plug the electrical connector back into the sensor, ensuring it clicks and locks securely.

7. 7

   Restore Power

   Reconnect the negative battery cable.

8. 8

   Clear Codes and Calibrate

   Turn the ignition on. Use a diagnostic tool to clear the ENG 3003 fault code. Depending on the machine model, a throttle calibration routine may need to be performed via the instrument cluster or diagnostic software to teach the ECU the new sensor's minimum and maximum voltage values. Verify the repair by sweeping the pedal and ensuring the code does not return.