Massey Ferguson T247 – TRANS (Autotronic 5): Issue With Powershift L Solenoid Supply Voltage

The transmission controller is detecting an electrical anomaly on the circuit for the Powershift "L" Solenoid Valve (identified in Massey Ferguson electrical schematics as component X479 or X480). The system logs this code when the measured current or voltage does not match the required value, indicating a potential open circuit, short circuit to ground, or short circuit to +12V.

• 7616
• 5612
• 7622
• Interim Tier 4 (2012-2015)
• 7614
• 5611
• 7615
• 5610
• 5613
• 7620
• 5609
• 7618
• 5608
• 7619
• 7626
• 7624
• 5710SL
• 5711SL
• 5712SL
• 5713SL
• 7714
• 7715
• 7716
• 7718
• 7719
• 7720

1. 1

   Inspect the Wiring Harness: Trace the wiring from the Autotronic 5 transmission controller to the Powershift L Solenoid. Look for chafed wires, melted insulation, or pinch points that could cause a short to ground or +12V.

2. 2

   Check the Connector: Disconnect the plug at the Powershift L Solenoid. Inspect the pins for corrosion, moisture ingress, or pushed-back terminals.

3. 3

   Test Solenoid Resistance: Using a multimeter, measure the internal resistance of the solenoid coil. Compare it against the OEM specification to determine if the coil has failed internally (open circuit or dead short).

4. 4

   Verify Supply Voltage: With the key ON, check the supply voltage at the harness connector to ensure the transmission controller is sending the correct signal to the solenoid.

1. 1

   Preparation

   Park the tractor on a level surface, engage the parking brake, turn off the engine, and disconnect the battery to prevent electrical spikes.

2. 2

   Locate the Component

   Locate the Powershift valve block on the transmission housing. Identify the "L" solenoid (refer to your specific model's schematic for the exact position of X479/X480 on the valve block).

3. 3

   Clean the Area

   Thoroughly clean the area around the solenoid to prevent dirt from entering the transmission hydraulic circuit.

4. 4

   Removal

   Disconnect the electrical connector. Remove the retaining bolt or snap ring holding the solenoid in place. Carefully pull the solenoid cartridge out of the valve block.

5. 5

   Installation

   Lubricate the O-rings on the new solenoid valve with clean transmission fluid. Insert the new solenoid into the valve block and secure it with the retaining hardware.

6. 6

   Reassembly

   Reconnect the electrical harness. Reconnect the battery.

7. 7

   Calibration

   Start the tractor and use the dashboard interface or a diagnostic tool to clear the T247 fault code. Perform a transmission calibration procedure as outlined in the operator's manual to ensure smooth shifting.