Question about 1999 Volvo V70

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Volvo V70 electrical problem

Hello, my battery died while driving, the car stopped. I checked the voltage, it is only 11.0 - 11.5 volts even with the engine running. Belt is OK, I guess it is either the alternator or the voltage regulator. Fuses seem to be OK. Is there anything I should check before I take it to the shop? I mean any hidden fuses, relays, switches, connections, anything??? Ho can I tell if it is the voltage regulator or the alternator itself?

Thanks :)

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  • bandipilot Jul 01, 2008

    Thanks, will see what happens. I will take it to the shop, i just don't wanna get ripped off by buying a new alternator or something.

    Thanks for your help!

  • Anonymous Mar 28, 2014

    I noticed when that light is on, my voltage is reading 10 or 11volts. When goes out reading returns to normal 12v. Alternator, ignition switch and OD relay have been replaced. What about the instrument cluster ckt bd or a wire that's grounded?



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Had the same problem with an s80 this week- no warning lights nothing. was the regulator. when you have it fixed cancel all the trouble codes as when voltage is low everything registrs low signal input and makes the car go into get me home mode.

Posted on Jun 30, 2008


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