marcobauer59
Nissan NV Overvoltage Errors
Summary of the thread
A 2013 Nissan NV was experiencing overvoltage errors, numerous fault codes, system failures, and weak battery starts. The issue was suspected to be related to the battery, as a defective or heavily discharged battery can cause the alternator to overcompensate, leading to overvoltage. Replacing the faulty battery resolved the errors and restored normal function.
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4 comment(s)
marcobauer59 (community.author)
Yeah, the weak starts made me think of the battery. But overvoltage? Could a bad battery really cause overvoltage? Seems counterintuitive.
jenniferbecker1
Dude, trust me, car electrics are witchcraft! In my case, a dying battery was causing the alternator to work overtime, hence the overvoltage and the cascading failures. It's not always straightforward. Best bet is to get it checked at a workshop.
marcobauer59 (community.author)
Right, I get it. Thanks for the tip! Turned out to be exactly as you said: a defective battery causing the overvoltage. Replaced it, and all the errors are gone. Cost me 290€, all included. Appreciate the help!
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NISSAN
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NV
jenniferbecker1
Whoa, sounds nasty! Had something similar happen with my old 2016 Opel Astra. Car was throwing a fit with all sorts of electrical errors. Weak starts too. Have you checked the battery? A heavily discharged or defective battery can cause all sorts of weird voltage issues.