2004 Toyota Prius Logo
Posted on Oct 20, 2009
Answered by a Fixya Expert

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2005 toyota prius abs brake not working warning light and abs lights all stay on toyota cant fine problem they say the brakes are fine they want to put in a main chip which well cost $2500 i beg to differ its my brakes not main chip as the car drives ok

  • bdbunyan Oct 21, 2009

    First Toyota Service Department did computer test
    no error to be found?

    Second Toyota Service Depo gave us this
    Misc Repair!
    Engine warning lights on

    Emps-U0121 Lost Com with Abs
    Abs-C0200 R/f Speed Signal
    -C0205 L/f Speed Signal
    -C1300 Abs Ecu
    -C1310 Hv Syatem
    Recommended skid control Abs Ecu to start with?
    no guarantees it well work?

    No Abs,No Hazard lights,No Cruise control
    warning light,all brake warning lights on ?????????

  • Anonymous Mar 30, 2014

    The brakes work and I can get it in gear and drive but I still do not have any brake lights

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1 Answer

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  • Master 495 Answers
  • Posted on Oct 20, 2009
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Joined: Oct 14, 2007
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Hmm, I'm not sure what a main chip is but, there is a few reasons for this problem.

  1. ABS Sensors - there could be something wrong with a sensor and/or the wiring to them
  2. The wheel bearing speed sensor in a wheel is bad or intermittent which then tells the computer that wheel is traveling at a faster or slower rate of speed then the rest which in then the computer turns the abs light on.
Now when your warning lights go on, the computer sets a DTC code which is the key to helping solve this problem. If you can get the DTC (Data Trouble Code) from the dealership or from someone who can scan your can, I can better assist you in figuring out what's wrong. Hope this helps.

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What would cause the Emergency Brake light to not go off when the emergency light is released? What causes the ABS warning light to come on?

When I had that problem with the emergency light it was the sensor for emergency brake
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Click sound when shifting gear and parking

The clicking noise could be related to the bigger problem with the abs/vsc actuator, this is a kind of common problem on the prius models, the actuator should be replaced, this is a very expensive part (around $2000) for the part only, while the warning light is on the traction control and abs are disabled, it will still brake normally.
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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.

0helpful
2answers

Esp and abs light on in 2009 ford transit how do i eliminate them

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 issue,i suggest you to refer the help links provided below.There are direct links with accurate solution,for these specif issue.

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.

0helpful
1answer

What does it mean when yourbrake light and asb light remain on when you drive.

Hi Graeme, When the ABS and the brake warning light both stay on it means you have two fauls with the braking system. Before you start the car open the hood and check the brake fluid level. I believe it will need topping up. If not check to see if the parking brake is releasing correctly When you have done that,and made sure you have effective brakes, take the vehicle to a technician and have that person inspect both systems. Find out if there is leakage of brake fluid and if there sort that problem first. The ABS can be sorted out second and then reactivated. Regards John
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