Question about 1999 Volvo V70

1 Answer

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 :)

Posted by on

  • 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?


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 39 Answers

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

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

Can you check alternator by taking bat cable off while running on Volvo mini excavator

That would depend on if it has an electric fuel solenoid or mechanical. If you have to pull a lever or knob to get the engine to die when you want to shut it off, it wouldn't matter if the alternator is charging or not, the engine will keep running until it runs out of fuel. If the engine dies when you turn off the key, this would indicate an electric fuel cut off and should shut off when the battery cable is removed if the alternator is not charging. But I think the best way to check your alternator is with a multi meter or at least a volt meter. With the engine running you should have at least 12.5V to 13.5V at the battery at idle.

Jun 24, 2015 | Volvo Cars & Trucks

1 Answer

My 1999 volvo v70 GLT wagon loses power and car shuts off


Sep 11, 2014 | 1999 Volvo V70

1 Answer

Dash display

Have you checked the fuse boxes?

Mar 06, 2014 | 2002 Volvo V70

1 Answer

Driver side low beam headlamp out. replaced bulb--no go. checked fuse-fuse ok.

Remove the new lamp

Put a volt meter black lead to the engine
for a good ground or battery grd post

Then turn on the light & probe the lamp socket
one or two wires should read battery volts &
most likely the balck wire is ground & won't drop
any voltage

If good there or compared to other light connector
go after a broken or open ground wire

Dec 01, 2012 | 2004 Volvo V70

1 Answer

Car won't start. Battery power seems fine. Turn the key, no cranking, lights and radio die with key in "start" position.

Hello davidoz,

Your description sounds like a bad battery. Do you have a volt meter to watch the voltage as you turn the key to start? The voltage on a good battery( meaning fully charged) should stay about 11 volts while cranking, if it drops below that suspect a bad battery.

Another possibility is that the battery is good but the alternator is not charging.

Will it start with a jump? If is does check with a volt meter the out put of the alternator it should be 13.8 volts or slightly higher.


Mar 09, 2011 | 2000 Pontiac Grand Am GT

1 Answer

1990 240 dl Volvo wagon, have to put fully charged battery, then when the battery is discharges the car dies, alternator ? Voltage regulator ?

sounds as though you have a bad alternator or a loose alternator belt and the battery is not being charged. while the car is running - check the voltage from the alternator and make sure it is about 13.4 volts DC.


Jan 03, 2011 | 1990 Volvo 240

1 Answer

Where exactly is the front O2 sensor on a 1999 S70?

For 1998 Volvo V70 2.4L MFI DOHC 5cyl the Oxygen Sensor is located under vehicle, center, below front seating area, mounted in top of exhaust pipe.

The oxygen sensor produces a voltage within 0 and 1 volt. When there is a large amount of oxygen present (lean mixture), the sensor produces a low voltage (less than 0.4v). When there is a lesser amount present (rich mixture) it produces a higher voltage (0.6-1.0v).The stoichiometric or correct fuel to air ratio will read between 0.4 and 0.6v. By monitoring the oxygen content and converting it to electrical voltage, the sensor acts as a rich-lean switch. The voltage is transmitted to the engine controller. The controller signals the power module to trigger the fuel injector.


Hope this helped (remmeber comment and rated this).

Apr 06, 2010 | 1998 Volvo V70

1 Answer

Low voltage warning light comes on and car died. Replaced battery and now the sunroof will not close even though car starts. Warning light about electrical problem is still lit.

More than likely you have to bring it to the dealer to have your control module reset. When the battery dies unexpected some of the control modules will go in to what they call "sleep" mode. Sometimes you can take the negative battery cable and put it on the positive for about 10 min. It might wake the system back up. This does not work all the time but its worth a try before you bring it to the dealer.

Oct 11, 2009 | 2001 Volvo V70

1 Answer

Issue with dash lights dimming while driving,

If the battery and alternator tested fine. I would have the charging system rechecked when engine is hot and at high rpm's. This way the checks are being done as if you were driving and driving for a long time. Alternators can work fine when cold but weaken when hot or stop working. This problem is not rare but only is seen occassionly. Unless it was checked at an electrical shop the average shop doesn't run these tests for they don't see the problem often enough to automaticly run them at all times. Good luck and let me know how you make out.

Sep 21, 2009 | 1998 Volvo V70

Not finding what you are looking for?
1999 Volvo V70 Logo

1,034 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts


Level 3 Expert

63456 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21981 Answers

Mark Jones

Level 2 Expert

76 Answers

Are you a Volvo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides