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karlnacht26

Peugeot iOn Overvoltage Errors

I'm seeking advice regarding my 2010 Peugeot iOn electric vehicle. I've been experiencing electrical issues, with numerous overvoltage errors. Systems are failing intermittently. Starting is difficult due to a weak battery, and I observe general electrical malfunctions. The car has 60566 km. I suspect a heavily discharged or defective battery, but I am not sure if there may be other reasons. Is it possible?

4 comment(s)

william_bauer10

That sounds eerily familiar! I had similar overvoltage issues with my Renault Zoe. I was getting power surges all over the place, and it turned out to be a dodgy voltage regulator causing havoc. Have you checked the alternator output? A failing alternator can sometimes cause voltage spikes that fry other components. Given you have an electric vehicle, that would be something else, like the DC-DC converter outputting too much voltage. Have you checked that?

karlnacht26 (Author)

Thank you for your quick answer! As I am not very familiar with the Zoe I am not aware of that model details. Could you please explain where I can find the DC-DC converter, and what I should be looking for when testing it?

william_bauer10

Given the risk of electrocution, I would advise you not to poke around without experience. In my Zoe the problems were so severe that I went to the garage to avoid damaging the car and possibly harm myself. For me, it was exactly as the mechanic said: the DC-DC converter had gone rogue and was pumping out way too much voltage. Get the car to a qualified mechanic before more damage is done. Also, are the systems failing intermittently or continuously?

karlnacht26 (Author)

I appreciate you confirming a comparable experience! Following your advice, I took the Peugeot to a workshop. A defective battery was indeed the problem. Repair cost was approximately 290€. Many thanks again!

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