Massey Ferguson 0.1.4C – Dash / Instrument Panel: Issue With Signal From Outside Air Temperature Sensor (Dash)

The system has detected that the signal voltage from the ambient/outside air temperature sensor is either too high or too low, indicating an electrical fault such as an open circuit, a short circuit to ground, or a short circuit to positive in the sensor or its wiring harness.

• 5710SL
• 5711SL
• 5712SL
• 5713SL
• T4
• 5713SL T4
• MF 8727
• 8730
• 8732
• 8735
• 8737
• MF 7719
• 7724
• MF 5410
• 5420
• 5425
• 5430
• 5435
• 5450
• 5455

1. 1

   Visually inspect the outside air temperature sensor (located near the grille or cab air intake), its 2-pin connector, and wiring for corrosion, chafing, or physical damage.

2. 2

   Use a multimeter to check the wiring harness between the sensor and the Dash controller for continuity, and verify there is no short circuit to ground or short circuit to positive.

3. 3

   Measure the resistance across the two pins of the sensor. The baseline resistance should be approximately 5000 Ohms. An open circuit (infinite resistance) or a dead short indicates the sensor has failed internally.

1. 1

   Disconnect battery

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

2. 2

   Locate sensor

   Locate the outside air temperature sensor.

3. 3

   Unplug connector

   Depress the locking tab on the 2-pin electrical connector and carefully unplug it from the sensor.

4. 4

   Remove faulty sensor

   Unclip or unbolt the faulty sensor from its mounting bracket.

5. 5

   Install new sensor

   Snap the new replacement sensor into the mounting location.

6. 6

   Reconnect connector

   Reconnect the 2-pin electrical connector, ensuring it clicks securely into place.

7. 7

   Verify and clear code

   Reconnect the battery, turn on the ignition, and verify that the ambient temperature displays correctly on the dash. Clear the 0.1.4C fault code using a diagnostic tool or the dash menu.