BMAX ECU Fault

I've got a 2015 Ford BMAX with a gasoline engine, about 188000 km on the clock. I'm noticing less engine power, and diagnostics show a possible ECU fault. Could a bad main relay be the problem? Anyone seen this before?

4 comment(s)

Hey, I had something similar with my BMAX. Reduced power, engine light. I didn't check the codes myself, but ECU issues are possible. How old's your battery?

Interesting! Battery's fairly new, maybe a year old. When you had this, was it definitely the ECU, or could it have been something else? What did the garage say?

Well, they mentioned a relay messing with the ECU. If you don't know much about car electrics, get it to a workshop. Proper diagnosis is worth it.

Appreciate the help! Shop confirmed it, you were right. Defective main relay was causing the ECU issue. Cost 120€ to fix. Thanks!

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