Massey Ferguson E9008 – Engine Control Unit (ECU): Defective CAN ID module / CAN ID module off (ECU to ID)

Communication failure or loss of signal between the Engine Control Unit (ECU) and the CAN Identification module over the tractor's Controller Area Network (CAN bus).

• Massey Ferguson 8600 Series
• 8650
• 8660
• 8670
• 8680
• 8690
• Massey Ferguson 7400 Series
• 7490 Dyna VT

1. 1

   Check for a voltage drop during cranking, especially if the error triggers sporadically after a cold start and disappears when restarted warm

2. 2

   Inspect battery terminals to ensure they are secure, tight, and free from dirt or corrosion

3. 3

   Inspect the CAN bus wiring harness between the ECU and the CAN ID module for chafed wires, loose pins, or moisture in the connectors

1. 1

   Disconnect Power

   Turn off the tractor and disconnect the battery to prevent electrical spikes.

2. 2

   Clean Connections

   Disconnect the wiring harness at the ECU and the CAN ID module. Clean the contacts with electrical contact cleaner and ensure no pins are bent or pushed back.

3. 3

   Test the Harness

   Use a multimeter to check for continuity on the CAN_H and CAN_L lines between the ECU and the CAN ID module. Verify there are no short circuits to ground or power.

4. 4

   Re-test

   Reconnect the battery and start the tractor. If the code was caused by a cold-start voltage drop or a dirty connector, the code should clear.

5. 5

   Replace Module

   If the wiring is intact, voltage is correct, and the code persists (or the tractor enters a limp-home mode limiting engine power to 60% and 1500 RPM), the CAN ID module itself has failed internally and must be replaced.

6. 6

   Dealer Calibration

   Contact your dealer. Installing a new CAN ID module or ECU component may require dealer-level software (AGCO Electronic Diagnostic Tool) to pair the new module's ID with the tractor's network.