Massey Ferguson 0.1.40 – Dash: CAN BUS Message Issue (Dash)

This indicates a communication failure on the tractor's Controller Area Network (CAN) bus. Specifically, the dashboard is either failing to receive expected data messages from other control units (like the Engine ECU or Transmission controller) or is unable to broadcast its own signals to the network.

• 5710SL
• 5711SL
• 5712SL
• 5713SL
• T4
• T4 Emissions Models
• MF 8700 Series

1. 1

   Verify the battery is fully charged and the alternator is outputting the correct voltage. Low voltage during cranking or operation can cause modules to drop off the CAN network.

2. 2

   Inspect the main cab wiring harness leading to the dashboard for rub points, chafing, or pinched wires.

3. 3

   Access the rear of the instrument cluster and check the main harness connectors (e.g., the X972 connector on newer models) for loose pins, moisture, or corrosion.

4. 4

   With the battery disconnected, use a multimeter to measure the resistance between the CAN High and CAN Low pins at the diagnostic port. A healthy CAN bus should read approximately 60 ohms. A reading of 120 ohms indicates a broken wire or a failed terminating resistor.

1. 1

   Disconnect Power

   Disconnect the negative battery cable to prevent electrical shorts while working on the dash components.

2. 2

   Access the Dash Module

   Remove the steering column cowling and dashboard trim panels to expose the rear of the instrument cluster.

3. 3

   Clean and Reseat Connectors

   Unplug the main wiring harness from the dash. Spray the contacts with electrical contact cleaner, allow them to dry, and apply a small amount of dielectric grease. Reconnect firmly, ensuring the locking tabs click into place.

4. 4

   Repair Wiring (If Applicable)

   If the diagnostic continuity test revealed an open circuit or short to ground on the CAN lines, locate the damaged section of the harness. Splice and solder the broken wires, then seal them with heat-shrink tubing.

5. 5

   Reassemble and Power Up

   Reinstall the dash panels and reconnect the battery.

6. 6

   Clear Codes

   Turn the ignition on. Use a diagnostic scan tool (or the tractor's onboard diagnostic menu) to clear the 0.1.40 fault code.

7. 7

   Test Operation

   Start the tractor and verify that all dashboard gauges are reading correctly and the code does not return. If the wiring is perfect and the code persists, the instrument cluster itself has suffered an internal failure and must be replaced.