Massey Ferguson 51.13 – Engine ECU: Air Throttle Valve Position Sensor Calibration Issue

Indicates that the sensor reading for the intake air throttle valve is out of calibration or its data is valid but falls outside the normal operational range.

• 4710
• 7724S
• 5712SL
• 7722S
• 7722
• 5713SL
• 7720S
• 7716
• 7718
• T4
• 7715
• 5710SL
• 7726
• 4708
• 7726S
• 4707
• 4709
• 5711SL
• 7718S
• 7719
• 7714
• 7716S
• T4 (2015-2021)
• 7720
• Tier 4 (2015-2021)
• 7715S
• 7724
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 5710 SL
• 5711 SL
• 5712 SL
• 5713 SL
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626

1. 1

   Enter diagnostic mode via the tractor's control panel to verify if the code is active or stored.

2. 2

   Save the current error log, and then clear the fault codes.

3. 3

   Restart the Engine ECU (turn the machine off and back on).

4. 4

   Operate the tractor through a standard drive cycle to see if the fault code triggers again.

1. 1

   Visual Inspection

   Inspect the Air Throttle Valve 1 assembly and its wiring harness for any physical defects, damage, or loose connections.

2. 2

   Component Testing

   Swap the current throttle valve with a known-good test throttle valve to verify operation.

3. 3

   Replacement

   If the system operates normally without throwing the calibration error using the test valve, the original throttle valve's internal position sensor has failed. Replace the Air Throttle Valve assembly. (Note: The position sensor is typically integrated into the throttle valve assembly and not serviced separately).