The Service Reset light comes on at regular mileage points to alert you to perform
necessary maintenance to keep your Volvo 850 running properly.
When you do the work yourself the light can be reset with these instructions.
Volvo 850 (1993-1995) Service Light Reset
Under the hood there are 2 diagnostic units (labeled A and B on the cover) next to the washer reservoir.
1. Turn on the ignition and open diagnostic unit A.
2. Locate the flylead (the test wire that is in the plastic holder).
3. Insert the flylead into socket 7.
4. Press the large round test button on the diagnostic unit 4 times, briefly but firmly.
5. When the LED flashes and then stays lit, it will accept the reset code.
6. The reset code for the service light is 1-5-1.
7. Press the large round test button firmly one time and then release it. The LED should be lit.
8. Press the button firmly 5 times and then release it. The LED should be lit.
9. Press the button firmly one more time and then release it. The LED will flash several times.
10. Turn off the ignition switch and replace the flylead in its holder and close the cover.
The Service Light has now been reset.
Volvo 850 (1996-1997)
You need the OBD II reset tool. The price is approx. $150.
Or take your car to a Volvo dealership or an independent Volvo shop.
Expect to pay $50-$75.
Have a look under the tech manuals on the following site http://www.volvoclub.org.uk/ they have helped me no end and apperar to be offical Volvo tech sheets.
There are a few ways you can go about doing this: 1. a Volvo dealer2. a mechanic who works on volvos3. you own the service light reset tool. you can buy the service light tool at www.ipd.com it will cost about $180. direct link to tool:http://www.ipdusa.com/ProductsCat.aspx?CategoryID=519&NodeID=4564&RootID=629
Fix the problem and the light will go out. Normally on Volvo 850's the ABS sensor goes out (actually a wire comes loose inside the unit) this sensor is under the hood on the ABS unit.
The service on light is pre programmed to switch on at pre-determined intervals to rmind you to take it in for maintenance.
There are a few different ways to reset the check engine light on this vehicle. You can either have a mechanic use a scan tool, remove the battery cables and touch them together, or fix the problem to get the light to go off.
Look at http://www.volvoclub.org.uk/tech/service/850/WiperWasherSystem.pdf It says it all for a 850!
There's no Volvo 850 2000. What you likely saw was a S70.
I had to do this on my 96 850, and no, I did not have to have it running, just on accessories on ignition.
http://www.volvoclub.org.uk/tech/service/850/TroubleshootingWithCodes-Turbo.pdf Here you can find some answers!
I was told (just yesterday) by a Volvo dealership mechanic to leave the key in the on position for up to 2 hours. This applies to my 1994 940.
it means that a bulb is burned out
The Volvo 850 has two horns in front of the radiator, lift the hood and their they are.
There's no 2.0L. Volvo 850 engine. Only 2.3L. & 2.4L. ...