milahoffmann5
Odyssey engine power loss
Summary of the thread
A 2020 Honda Odyssey hybrid experienced a significant reduction in engine power, with error codes indicating a potential issue. A defective main relay in the ECU was suspected as the cause. After consulting with others who had similar experiences, it was suggested to check the control system and consider a system reset. Ultimately, the problem was confirmed to be a defective main relay in the ECU, which was resolved by a workshop repair.
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4 comment(s)
milahoffmann5 (community.author)
Thanks for the quick reply! I appreciate the suggestion. I haven't done a full system reset yet. Did your error messages specifically point to the ECU, or was it more general? And did the reset solve the issue for you?
dirkstorm29
Well, the error messages were pretty vague, and I was kinda hoping for a quick fix like a reset, but no luck. It eventually turned out to be a relay issue within the ECU. I'd suggest getting it checked out by a workshop. It might save you some headache.
milahoffmann5 (community.author)
Appreciate the insight! Took your advice and brought it to a shop. You were spot on – defective main relay in the ECU. Repair cost me about 120€. All sorted now, thanks again!
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HONDA
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ODYSSEY
dirkstorm29
I also have an Odyssey. I had similar symptoms a while back – loss of power and error codes. Did you check the control system or consider a system reset? I'm not an expert, but could it be something simple before diving into ECU repair?