Question about 1999 Volvo S80

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Dashboard red lights

Warning lights ABS, STC, check engine, break failure Stop ASAP and Red (!) sign keep coming on even though car runs fine. Can somebody tell me why?
RD

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  • Anonymous Mar 17, 2014

    what need to be checked

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I had the sames problems and was told it was my abs module. Mine was making a noise when I went over bumps on the left front. We replaced the rubber bushing on top of the strut spring and have driven 2500 miles and no lights have come on. This part was only $25.oo plus $45.00 labor to replace it..

Posted on Dec 06, 2008

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Your ABS Computer is likely failing. They have problems with the solder joints on the circuit board, causing a code to be set and the lights to come on. Very common on this vehicle!

Bret

Posted on Dec 06, 2008

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Meaning of warning lights


Manufacturers spend billions of dollars a year refining their cars' on-board diagnostics systems. However, all of the sophisticated diagnostics in the world will do little good if you don't know what the warning lights mean.
Purpose
Modern automobiles have dozens of sensors to monitor engine, braking and chassis performance. Any deviation from the car's established limits will trigger a dashboard warning light.


Check Engine Light
Check engine lights can indicate failure of the emissions system, fuel injection system, faulty sensor feedback, overheating or lack of voltage, transmission failure, and engine knock ignition system failure.


Brake Lights
Almost all cars have two separate lights for the braking system: a red "ABS" (anti-lock braking system) light and "Brake Warning" light. The former indicates failure of the electronic anti-lock system, the latter a loss of fluid pressure in the brake system itself.


Dynamic Warnings
Many modern cars have traction or stability control systems that prevent and notify the driver of tire slippage. These lights can come in the form of amber "SLIP," "TC," or "TRACTION" lights (for spinning tires), or "ESC" (electronic stability control) lights for a sliding vehicle.


Safety Lights
Most cars have a diagrammatic warning that indicates a door that isn't all the way closed, a seat-belt warning light, and an "airbag disabled/enabled" light. Any or all of these will be red or amber.


Read more: Car OBD2 diagnostic tool

Jul 25, 2012 | Cars & Trucks

1 Answer

I have a 1999 vovlo s80 and all the lighst on the dashboard (brake,traction,check engine) are on and none of the guages work. The car also says break failure stop ASAP. What could be causing this?


Your abs module is bad. A bad abs module will make all of those lights come on, on your dash and it will basically disable your car so that you cannot drive it anymore.

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At various times all the warning lights go on/off


abs circuit board normally also can cause no speedo /1st you need to have volvo read the code and give you a print out or just throw money out the car window? generic scan tools are very limited on codes and history

Jul 09, 2008 | 1999 Volvo S80

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