Massey Ferguson B.02.24 – Mid Mount Valve Module: Issue With Voltage From Loader Selector Switch In Cab

The tractor's onboard diagnostic system has detected an irregular, missing, or out-of-range voltage signal coming from the switch used to control or select loader functions inside the cab.

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

1. 1

   Use a multimeter to test the voltage output directly from the loader selector switch in the cab while operating it

2. 2

   Inspect the wiring harness running between the cab selector switch and the Mid Mount Valve Module for signs of fraying, burns, or vibration-related wear

3. 3

   Check the connectors at the switch and the module for loose pins, moisture, or corrosion

4. 4

   Test the circuit for continuity to rule out a short circuit caused by damaged wire insulation

1. 1

   Disconnect Power

   Disconnect the tractor's battery to prevent electrical shorts during the repair.

2. 2

   Access the Switch

   Locate the loader selector switch in the cab (typically integrated into the right-hand console or the loader joystick itself).

3. 3

   Remove the Switch

   Carefully disconnect the wiring harness connector from the back of the switch. Remove the switch from its mounting panel or joystick housing.

4. 4

   Install the New Part

   Install the replacement switch into the housing.

5. 5

   Reconnect Wiring

   Reconnect the wiring harness. (Applying a small amount of dielectric grease to the connector pins is recommended to prevent future corrosion).

6. 6

   Restore Power

   Reconnect the battery.

7. 7

   Clear Codes

   Connect a compatible Massey Ferguson diagnostic tool to the tractor and clear the stored DTCs.

8. 8

   Test Operation

   Start the tractor and test the loader selector switch to ensure proper voltage is being sent and the loader functions operate without triggering the code.