Massey Ferguson 10.X.06 – AIRCON: Cab Temperature Sensor Short Circuit (AIRCON)

The climate control system has detected a short circuit in the inside cab temperature sensor or its wiring circuit. The controller is receiving an out-of-range voltage signal (typically shorted to ground or shorted to a power source), which prevents the automatic temperature control from accurately reading the cabin's interior temperature.

• 7724S
• 5712SL
• 7722
• 7722S
• 5713SL
• 7720S
• 7716
• 7718
• T4
• 7715
• 5710SL
• 7726
• 7726S
• 5711SL
• 7718S
• 7719
• 7714
• 7716S
• 7720
• Tier 4 (2015-2021)
• 7715S
• 7724
• 4707
• 4708
• 4709
• 4710
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 7614 through 7626
• 7714 through 7726S
• Combine harvesters

1. 1

   Locate the inside cab temperature sensor (typically mounted in the top right side of the interior fuse panel or behind interior cab louvers) and visually inspect the wiring harness for pinched wires, chafing, or melted insulation.

2. 2

   Disconnect the sensor and inspect the electrical pins for corrosion, moisture, or bent terminals.

3. 3

   Measure the resistance across the sensor terminals with a multimeter. A dead short (near 0 ohms) indicates the sensor has failed internally.

4. 4

   With the sensor disconnected, turn the key ON and check for continuity to ground on the signal wire. Continuity to ground indicates the short circuit is in the wiring harness.

1. 1

   Turn off the tractor and disconnect the negative battery terminal to prevent electrical spikes during repair.

   Turn off the tractor and disconnect the negative battery terminal to prevent electrical spikes during repair.

2. 2

   Locate the cab temperature sensor inside the cabin. Remove any interior trim panels or fuse box covers necessary to access the component.

   Locate the cab temperature sensor inside the cabin. Remove any interior trim panels or fuse box covers necessary to access the component.

3. 3

   Unplug the electrical connector from the sensor.

   Unplug the electrical connector from the sensor.

4. 4

   If the diagnostic tests proved the wiring harness is shorted, trace the harness back to the AIRCON module and repair the damaged section of the wire using proper splicing and heat-shrink tubing.

   If the diagnostic tests proved the wiring harness is shorted, trace the harness back to the AIRCON module and repair the damaged section of the wire using proper splicing and heat-shrink tubing.

5. 5

   If the sensor itself is faulty, unclip or unscrew the old sensor from its mounting location.

   If the sensor itself is faulty, unclip or unscrew the old sensor from its mounting location.

6. 6

   Install the new OEM cab temperature sensor and secure it in place.

   Install the new OEM cab temperature sensor and secure it in place.

7. 7

   Reconnect the electrical harness.

   Reconnect the electrical harness.

8. 8

   Reinstall any removed trim panels.

   Reinstall any removed trim panels.

9. 9

   Reconnect the battery, turn the ignition on, and use the tractor's diagnostic menu or a scan tool to clear the 10.00.06 fault code.

   Reconnect the battery, turn the ignition on, and use the tractor's diagnostic menu or a scan tool to clear the 10.00.06 fault code.

10. 10

    Test the HVAC system to ensure the automatic temperature control regulates the cab temperature correctly without throwing the code again.

    Test the HVAC system to ensure the automatic temperature control regulates the cab temperature correctly without throwing the code again.