jameszimmermann1

Palio electrical overvoltage issue

Hello. I'm experiencing some electrical issues with my 2010 Fiat Palio, diesel engine, with 114702 km. The main problem seems to be overvoltage. I'm getting many fault memory entries related to it, and this is causing various systems to fail. I've also noticed the battery is weak when starting, and there seems to be a general electrical malfunction. I suspect a heavily discharged or defective battery. Could it be something else?

The main issue with the 2010 Fiat Palio is electrical overvoltage, causing system failures and a weak battery. Possible causes include a defective or heavily discharged battery and a faulty voltage regulator. Suggested solutions involve checking the voltage regulator and battery, with a recommendation to consult a workshop for accurate diagnosis and repair.

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4 comment(s)

Hey, I had something similar happen with my Fiat Palio, although it was a while ago. Overvoltage can fry things quick! Does it happen all the time, or just sometimes? Check your voltage regulator first; that's a common culprit. Could also be circuit protection failing, or maybe the ECU itself. But a dead battery would be my first suspect too.

Thanks for the quick response. I'm not sure if it's happening constantly; the errors are always present when I scan the car, but the symptoms are intermittent. Where exactly is the voltage regulator located, and how can I test it to be sure? Also, what kind of damage can overvoltage actually cause to the ECU?

Yeah, intermittent problems are the worst! Honestly, finding the voltage regulator can be a pain; it depends on your specific engine setup. A multimeter is your friend to test it. As for ECU damage, overvoltage can seriously mess with its delicate electronics – think fried circuits and corrupted data. My advice? Unless you are super confident with car electronics, take it to a workshop. Better safe than sorry with electrical gremlins!

Alright, thanks for the advice. I appreciate you confirming my suspicions. I'll take it to a workshop to get the voltage regulator and battery checked. The diagnostic pointed to a defective battery as a starter, and the mechanic also changed the voltage regulator. The total repair cost was 290€. Hopefully, this will solve the problem!

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FIAT

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PALIO