ABS dash light comes on intermittently, never staying on, mostly off.

First you need to have EBCM - electronic brake control module check for DTC'S - diagnostic trouble code's . If the light is on there is a code stored . I think most part stores can do this and for free . After you find out what code is stored , looking up that code in service repair information for diagnostic trouble shooting chart would be next step . There are a few codes too.
DTC C0035 or C0040
DTC C0045 or C0050
DTC C0110
DTC C0131
DTC C0161
DTC C0186
DTC C0196
DTC C0201
DTC C0240
DTC C0241 or P0856
DTC C0244 or P1689
DTC C0245
DTC C0283
DTC C0287
DTC C0290 or C0292
DTC C0455
DTC C0550
DTC C0558

Find the code do the diagnostic's , fix the problem , wiring issue's , a sensor , bad module ,what ever it is . The light will go out then . Here is a sample of code discription .
• DTC C0035 Left Front Wheel Speed Sensor Circuit
• DTC C0040 Right Front Wheel Speed Sensor Circuit

ABS LIGHT AND MODULE TROUBLESHOOTING:

Anti lock brake system light comes up when there is issue with car brake systems. It can be low brake fluid or faulty ABS fuse or its issue with brake system or assembly. Your vehicles brake system needs inspection.

To troubleshoot these issues, I suggest you to refer the help links provided below. There are direct links with accurate solution, for these specific issues.

Click the link below and follow the procedure: ------

All types of ABS LIGHT / brake problems and repairs

http://howtobyme.blogspot.com/2011/11/abs-and-service-light-comes-on.html

-------------------

ABS light stays on but brakes work fine?

http://howtobyme.blogspot.com/2011/11/abs-light-stays-on-but-brakes-work-fine.html

----------------

VCS and ABS lights go on and off intermittently on Lexus?

http://howtobyme.blogspot.com/2011/11/vcs-and-abs-lights-go-on-and-off.html

-------------

The ABS and Traction Control Lights stays ON dash of car?

http://schematicsdiagram.blogspot.com/2011/06/abs-and-traction-control-lights-stays.html

-------------

ABS & Brake lights warning indicator steady on dash and speedometer not working for Dodge Ram?

http://howtobyme.blogspot.com/2011/11/abs-brake-lights-warning-indicator.html

-----------------------

Battery Light and ABS Light on Dash

http://whoisbyme.blogspot.in/2012/07/battery-light-and-abs-light-on-dash.html

-------------

Sometimes ABS light comes on while Driving?

http://howtobyme.blogspot.com/2011/12/sometimes-abs-light-comes-on-while.html

-----------

How Anti-Lock Brakes Work?

http://technoanswers.blogspot.com/2011/11/how-anti-lock-brakes-work.html

-------------

Brake System Troubleshooting?

http://technoanswers.blogspot.com/2011/11/brake-system-troubleshooting.html

-------------

Anti-lock brake light stays on all the time?

http://technoanswers.blogspot.com/2012/01/anti-lock-brake-light-stays-on-all-time.html

-------------------

ABS light comes on and Car makes Grinding noise?

http://repairhelpcenter.blogspot.com/2012/01/abs-light-comes-on-and-car-makes.html

---------------

ABS trouble codes for all models?

http://repairhelpcenter.blogspot.com/2011/11/abs-trouble-codes-for-all-1994-00-acura.html
------------

2008 Toyota Highlander: ABS warning light Blinking and OBD Error codes Coming?

http://technoanswers.blogspot.in/2012/05/2008-toyota-highlander-abs-warning.html

--------------

2003 Lexus ES: VSC, TRAC OFF, ABS lights ON?

http://technoanswers.blogspot.in/2012/04/2003-lexus-es-vsc-trac-off-abs-lights.html

----------------

2008 Toyota Highlander Hybrid: Warning Lights Abs, Vsc & Brake Are On?

http://technoanswers.blogspot.in/2012/04/2008-toyota-highlander-hybrid-warning.html

-------------

ABS & Brake warning lights remains steady on dash?

http://schematicsdiagram.blogspot.com/2011/12/abs-brake-warning-lights-remains-steady.html

------------

Can I drive the car without ABS fuse connected?

http://schematicsdiagram.blogspot.in/2012/02/can-i-drive-car-without-abs-fuse.html

-----------

Where is ABS/TCS module located on 2005 Cadillac Deville

http://schematicsdiagram.blogspot.com/2011/12/where-is-abstcs-module-located-on-2005.html

------------------

ABS motor keeps running?

http://schematicsdiagram.blogspot.com/2012/01/abs-motor-keeps-running.html

------------

When the car stops, abs pump turns ON?

http://howtobyme.blogspot.com/2011/12/when-car-stopsabs-pump-turns-on.html

-----------

Replacing ABS unit on Buick Century?

http://technoanswers.blogspot.in/2012/02/replacing-abs-unit-on-buick-century.html

----------------

2008 Toyota Tacoma: ABS causes Brake pedal fade?

http://technoanswers.blogspot.in/2012/04/2008-toyota-tacoma-abs-causes-brake.html

--------------

Toyota Camry: Premature ABS Actuation?

http://technoanswers.blogspot.in/2012/04/toyota-camry-premature-abs-actuation.html

-----------

How to replace ABS Modulator Control Unit on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-replace-abs-modulator-control.html

----------------

How to replace ABS Pump Assembly on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-replace-abs-pump-assembly-on.html

-----------

How to remove ABS Accumulator on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-remove-abs-accumulator-on-acura.html

---------

How to remove ABS Control Unit on Acura Integra?

http://repairhelpcenter.blogspot.in/2011/11/how-to-remove-abs-control-unit-on-acura.html

------------

These details will help.

Thanks.

Most likely one of your ABS Sensor is faulty which return a false value on the system and leads the activation of ABS by itself that is mainly wrong. Better have someone to scan the system. But for me its the ABS Sensor, worst case is the ABS reluctor ring having a crack (hope its not the ring, this will cost a lot).

Your abs light is permanent. Most people don't bother to fix this, it is expensive, and your car is getting old. It means that the anti lock brake system has failed and needs repair. But your brakes still work fine, just don't have anti lock. So I'm not saying tape over the light on the dash, but.

take out the screws in the top of the cluster.remove the cluster.it is a double sided pc board and there will be broken solder joints on the back side of the pc board.resolder all the pins if you can solder,if not take it to an electronics shop and have them solder it.

Take it to auto parts store an have diagnostic tool hooked up to read codes >

clean the sensors

ABS went out while racing. I got a replacement from haprecycling for about $150 vs $1000+

just fyi, it's a pain to change. You will need a set of flare wrenchs and crows feet to get it in and out properly. Be VERY careful not to strip or cross thread the gettings.

http://ricksfreeautorepairadvice.com/abs-light-on-gm-vehicles/ ABS light on GM vehicles

I had the same problem. Abs light would come on and I would lose all dash instruments. Hit a bump on the road and abs light would go off and dash would come back on. What I did to fix problem, lol I slaped the dash just to the right of instrument panel and it all came back to life. There seems to be a short there, and I slaped it back 3 times in a week and now for the last month it has stayed on.