Massey Ferguson E9025 – Engine Control Unit (ECU): Self-test disconnect lines
Issue description
Internal monitoring or self-diagnostic failure regarding the circuitry that allows the module to safely cut off or disconnect paths during operation.
Applies to these machines
1 machine- Massey Ferguson 8600 Series tractors
Check the cause
View the code using the Instrument Panel Control Unit on the instrument cluster
Inspect the ECU main relays for shorts or faults
Inspect the engine wiring harness for shorts
Repair steps
Contact dealer
The OEM service manual does not authorize a field repair procedure for this code. Contact your dealer, as proprietary dealer software (such as AGCO EDT) is required to run further internal ECU tests or reflash the module.
Parts you might need
(2)Engine Control Unit (ECU)
Required if the hardware failure is internal to the module.
ECU Main Relay
Required if the cut-off path failure is external to the module.
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