Massey Ferguson 13.00.1A – TRANS1: Issue With Park Lock Proximity Switch On The Axle Dyna VT (TRANS1)

Malfunction or signal error detected from the proximity switch responsible for monitoring the engagement status of the park lock mechanism on the axle.

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

1. 1

   Locate the Park Lock Proximity Switch on the axle and inspect for physical damage, heavy debris buildup, or misalignment that could prevent it from reading the park lock position.

2. 2

   Inspect the wiring harness leading from the TRANS1 module to the proximity switch for chafed wires, breaks, or corrosion.

3. 3

   Disconnect the switch and check the connector pins for corrosion, moisture ingress, or poor terminal tension.

4. 4

   Test the circuit for open circuits, short circuits to ground (-), or short circuits to power (+12V).

1. 1

   Safely secure the tractor on level ground and chock the wheels, as you will be working on the park lock system.

   Safely secure the tractor on level ground and chock the wheels.

2. 2

   Clean the area around the axle where the proximity switch is mounted to prevent dirt from entering the housing.

   Clean the area around the axle where the proximity switch is mounted.

3. 3

   Disconnect the electrical harness from the proximity switch.

   Disconnect the electrical harness from the proximity switch.

4. 4

   Unbolt/unscrew the faulty proximity switch from the axle housing.

   Unbolt/unscrew the faulty proximity switch from the axle housing.

5. 5

   Install the new proximity switch, ensuring it is seated at the correct depth/gap (if adjustable) so it can accurately detect the park lock mechanism.

   Install the new proximity switch, ensuring it is seated at the correct depth/gap.

6. 6

   Reconnect the electrical harness.

   Reconnect the electrical harness.

7. 7

   Clear the fault codes from the TRANS1 module and test the park lock engagement/disengagement to verify the repair.

   Clear the fault codes from the TRANS1 module and test the park lock engagement/disengagement.