Massey Ferguson 06.01.1D – TRANS1: Issue With Voltage To 1000 PTO Speed Solenoid Dyna VT

Triggered by the onboard diagnostic (OBD) system when it detects an electrical irregularity (such as a short circuit, open circuit, or out-of-range voltage) on the circuit supplying power to the solenoid responsible for engaging the 1000 RPM PTO speed.

• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• Tier 4 (2015-2021)
• 6713 S
• 6714 S
• 6715 S
• 6716 S
• 6718 S
• 7714 S
• 7715 S
• 7716 S
• 7718 S
• 7719 S
• 7720 S
• 7722 S
• 7724 S
• 7726 S
• 8650
• 8660
• 8670
• 8680
• 8690
• 8727
• 8730
• 8732
• 8735
• 8737
• 8740
• 6S
• 7S
• 8S

1. 1

   Inspect the wiring harness running from the TRANS1 controller to the 1000 PTO speed solenoid for chafed wires, pinched harnesses, or exposed copper.

2. 2

   Disconnect the plug at the PTO solenoid and inspect the connector for corrosion, bent pins, or moisture ingress.

3. 3

   Using a multimeter, measure the resistance across the pins of the 1000 PTO speed solenoid to check for an open or shorted coil.

4. 4

   Back-probe the connector or use a test light to verify the TRANS1 module is sending the correct voltage to the solenoid when the 1000 PTO speed is commanded on.

1. 1

   Locate the Solenoid

   Locate the PTO control valve block on the transmission housing. Identify the specific solenoid for the 1000 RPM speed circuit.

2. 2

   Relieve Pressure

   Ensure the tractor is turned off, the PTO is disengaged, and hydraulic pressure is relieved before removing the valve.

3. 3

   Remove the Faulty Solenoid

   Disconnect the electrical harness. Unbolt/unscrew the faulty solenoid from the hydraulic control block.

4. 4

   Install the New Solenoid

   Lubricate the O-rings on the new solenoid with clean hydraulic fluid. Install the new solenoid valve and torque to OEM specifications.

5. 5

   Reconnect and Clear Codes

   Reconnect the electrical harness. Turn the tractor on, use a diagnostic tool to clear the 06.01.1D DTC from the TRANS1 module, and test the 1000 PTO engagement to ensure the fault does not return.