Massey Ferguson 04.03.33 – Transmission Control Module (TRANS): Issue With Message From Speed Lever On Armrest (TRANS)

The tractor's onboard diagnostic system has detected a communication failure, corrupted data, or a signal loss coming from the Multipad control joystick (speed lever) located on the operator's command control armrest.

• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• Tier 4 (2015-2021)
• 5700 Series
• 6700 Series
• 7700 Series
• 7700 S Series

1. 1

   Inspect the wiring harness connecting the Multipad joystick to the main cab harness for pinched wires, loose connector pins, or corrosion

2. 2

   Use a multimeter to check the CAN/communication lines between the armrest lever and the Transmission ECU for continuity and proper resistance (typically 60 ohms across the CAN network)

3. 3

   Access the Datatronic terminal or use a dealer diagnostic tool to monitor live inputs from the armrest speed lever to verify if the internal circuit board has failed

1. 1

   Park and disconnect battery

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

2. 2

   Remove trim panels

   Carefully pry or unscrew the trim panels on the command control armrest to expose the base of the Multipad joystick/speed lever.

3. 3

   Disconnect electrical connector

   Disconnect the multi-pin electrical connector at the base of the joystick.

4. 4

   Remove retaining hardware

   Remove the retaining screws or bolts securing the joystick assembly to the armrest frame.

5. 5

   Remove faulty lever

   Lift the faulty speed lever out of the armrest.

6. 6

   Install new joystick

   Drop the new OEM control joystick into place and secure it with the mounting hardware.

7. 7

   Reconnect harness

   Reconnect the electrical harness, ensuring the locking tab clicks into place.

8. 8

   Reinstall trim and reconnect battery

   Reinstall the armrest trim panels and reconnect the battery.

9. 9

   Clear DTC

   Turn the ignition on and clear the stored 04.03.33 DTC using the tractor's diagnostic menu or a compatible OBD scanner.

10. 10

    Test tractor

    Test the tractor in a safe area to ensure forward/reverse shuttling and speed changes respond correctly to the new lever.