hannahbecker89
Chevrolet Lova Overvoltage Fault Codes
Summary of the thread
A 2016 Chevrolet Lova is experiencing overvoltage issues, leading to fault codes and system failures. The initial suspicion is a faulty voltage regulator, but the possibility of an ECU problem is also considered. The suggested solution is to first check the battery's condition, as a defective battery can cause voltage regulator issues and lead to overvoltage. Ultimately, replacing the defective battery resolves the problem.
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4 comment(s)
hannahbecker89 (community.author)
Thanks for the quick reply! I haven't measured the voltages myself, as I don't have the equipment, but could a weak battery actually cause an overvoltage situation? I thought it would be the other way around!
elladark37
A failing battery can cause voltage regulator issues. The regulator might be working overtime to compensate for the battery's inability to hold a charge, leading to voltage spikes. The fault codes are a strong indicator. I suggest having a professional diagnose the charging system, including the alternator and battery. It's better to be safe than sorry when dealing with car electronics.
hannahbecker89 (community.author)
I appreciate your advice. I took it to a workshop, and you were spot on! It turned out the battery was heavily discharged and defective, causing the overvoltage issue. Replacing the battery fixed everything, and the total repair cost was 290€. Thanks again for pointing me in the right direction!
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CHEVROLET
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LOVA
elladark37
Overvoltage can cause widespread issues. Check the battery's condition; a heavily discharged or defective battery can trigger such problems. Have you measured the battery voltage and the charging voltage while the engine is running? Rule out a simple battery issue before suspecting more complex components like the ECU.