juliankrause4
Clarity Overvoltage Errors
Summary of the thread
A 2019 Honda Clarity hybrid is experiencing overvoltage errors, system failures, weak starts, and electrical malfunctions. The issue was initially unclear despite checking the battery and connections. After consulting a workshop, the problem was identified as a defective battery causing voltage issues, which was resolved by replacing the battery.
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4 comment(s)
juliankrause4 (community.author)
I haven't run specific diagnostic tests beyond reading the error codes. What did you find when you checked your BMW's charging system?
evawilliams12
Turned out my BMW had a faulty voltage regulator causing irregular battery charging. Seeing as you have similar errors I would suggest seeing a workshop.
juliankrause4 (community.author)
Thanks for the advice. The shop identified that the battery was defective and causing a voltage issue. Battery replacement including labour was 290€. Runs perfectly now.
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HONDA
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CLARITY
evawilliams12
I had a similar problem with my 2016 BMW 330e. Constant power surge errors, random system failures, the whole shebang. Did you check the charging system, or run any diagnostics?