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Problems with the 20A fuse when starting the Fiat Doblo engine

I own a 2007 Fiat Doblo with 168000 km (168000 miles) and I am experiencing the following problems: I have many error memory entries related to overvoltage. Also, when I start the engine, the 20A fuse blows. What could cause these problems and how can I fix them?

(Translated from Romanian)

1 comment(s)

Start by checking the alternator output voltage with a multimeter to ensure it's not exceeding the normal range (typically around 13.5 to 14.5 volts). Overvoltage can cause fuses to blow. If the voltage is too high, the alternator or voltage regulator might be faulty. Let me know how it goes or if you have any questions!

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