John Deere 000734.05 – Main Control Module: Low Forward Clutch Solenoid Circuit Fault

The Main Control Module has detected an electrical fault in the circuit for the solenoid that actuates the low forward clutch. The .05 Failure Mode Identifier (FMI) indicates a 'current below normal or open circuit' condition. This means the electrical current in the circuit is lower than the expected range, which is typically caused by a break in the wiring, a poor electrical connection, or a failed solenoid coil.

• 5065M
• 5075M
• 5085M
• 5095M
• 5095MH
• 5105M
• 5015ML
• 5085E
• 5090E
• 5090EL
• 5100E
• 5090M
• 5100M
• 5100MH
• 5100ML
• 5115M
• 5115ML
• 7720
• 9230
• 9330
• 9430
• 9530
• 9630

1. 1

   Visually inspect the wiring harness leading to the low forward clutch solenoid for signs of damage, chafing, breaks, or corrosion on the connectors

2. 2

   Confirm that the fault code is active by cycling the tractor's power to clear any temporary communication glitches

3. 3

   Perform a solenoid resistance test by disconnecting the solenoid and measuring resistance across its terminals with a multimeter (infinite resistance indicates an open circuit within the coil)

4. 4

   Check for voltage at the solenoid connector when the forward gear is engaged

5. 5

   Check for continuity in the wiring between the transmission control unit and the solenoid to rule out a broken wire or a short to ground

1. 1

   Prepare machine for service

   Ensure the tractor is on a level surface, the parking brake is engaged, and the engine is off. Disconnect the battery before starting any electrical work.

2. 2

   Locate the solenoid

   Locate the low forward clutch solenoid on the transmission housing. The exact position varies depending on the tractor model and transmission type.

3. 3

   Drain transmission fluid

   Depending on the solenoid's location, drain the transmission fluid if necessary to avoid spills when the solenoid is removed.

4. 4

   Remove the faulty solenoid

   Disconnect the electrical connector from the solenoid. Carefully unscrew and remove the solenoid from the transmission valve body. Pay close attention to any small parts, such as springs or valves, that may come out with the solenoid.

5. 5

   Install the new solenoid

   Install the new solenoid, ensuring any associated springs or valves are correctly seated. Screw the new solenoid into place and tighten it to the manufacturer's specified torque.

6. 6

   Reconnect and refill

   Reconnect the electrical connector. If the transmission fluid was drained, refill it to the correct level with the appropriate type of fluid as specified in the operator's manual.

7. 7

   Test the repair

   Reconnect the battery, start the tractor, and check for any leaks. Operate the transmission to ensure the forward clutch engages properly and that the fault code does not reappear.