Massey Ferguson 13.X.2F – TRANS1: Issue With Park Lock Proximity Switch On The Axle Dyna VT (TRANS1)

Signal failure, implausible reading, or electrical fault with the proximity switch responsible for monitoring whether the mechanical ParkLock mechanism on the axle is physically engaged or disengaged.

• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• Tier 4 (2015-2021)
• 6S.135
• 6S.145
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626
• 8670
• 8690
• 8700 S Series

1. 1

   Identify the ParkLock proximity switch (X673 or X674) on the axle/transmission housing.

2. 2

   Inspect the wiring harness and connector leading to the switch for an open circuit, short circuit to earth (-), short circuit to +12V, or chafed wires near the axle housing.

3. 3

   Use the tractor's onboard diagnostic screen or a dealer service tool to monitor the live state of the proximity switch. Verify it toggles between 'open' and 'closed' when the ParkLock is actuated.

4. 4

   Check the ParkLock brake pressure sensor (X21) and hydraulic system pressure sensor (X35) to ensure the system is receiving the hydraulic pressure required to move the lock mechanism.

1. 1

   Secure the Tractor

   Park the tractor on a flat, level surface. Securely chock the wheels to prevent the tractor from rolling.

2. 2

   Access the Switch

   Locate the ParkLock proximity switch on the axle assembly. Clean the surrounding area thoroughly to prevent dirt from entering the transmission/axle housing.

3. 3

   Disconnect

   Unplug the electrical connector from the proximity switch.

4. 4

   Remove the Switch

   Unthread the faulty proximity switch from the housing.

5. 5

   Install the New Part

   Thread the new proximity switch into the housing until it bottoms out on the internal mechanism, then back it off according to the OEM service manual spec to set the air gap/depth before tightening the locknut.

6. 6

   Reconnect and Clear

   Reconnect the wiring harness. Turn the ignition on and use the tractor's diagnostic interface to clear the 13.X.2F fault code.

7. 7

   Test

   Actuate the ParkLock via the Power Control lever (connector X72) and verify that the dashboard indicator updates correctly and no codes return.