Question about 2004 Toyota Prius

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I changed the front wheel bearing on my 2005 prius and now the red brake and abs warning lights are on. How do I reset them?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: abs light and trac off light on

I had the same problem - it has to do with your front hub. Probably best to take into the dealership

Posted on Oct 11, 2008

pcastal
  • 90 Answers

SOURCE: vitz abs light

The most likely cause is that the wheel speed sensor wire got stretched during disassembly, and needs to be replaced not. If the wires arent disconnected from the hub, or strut during disassembly, they get pulled and yanked and the wires inside stretch to far, but you cant see it because the outside looks ok. Happens all the time.

Posted on Jan 25, 2009

Brian032472
  • 150 Answers

SOURCE: Abs/Brake Light ON, although new brakes, ABS still works

I would suspect a speed sensor.

Posted on Jan 30, 2009

  • 420 Answers

SOURCE: 2005 Chev Uplander abs light on...I replaced two

Did you plug the sensors back up?

Posted on Apr 14, 2009

Hentie
  • 18 Answers

SOURCE: after replacing the left front wheel bearing on a 2003 ford focus, the abs and traction warning light stay on

The bearings on the wheels has to be installed one way only, the rotor ring is built into the bearing and if installed the wrong way round the sensor cant pick up the wheel speed causing the ligt to be switched on in the cluster. The diagnostic equipment should pick this up as a fault once the car has been driven, it will see the sensor when you do the diagnostic if the car is standing still but once the car is moving and no signal is send from that wheel it would register a fault into the memory of the PCM that you would be able to retrieve later.
There is a way for you to test the sensor yourself by using a multimeter set on volts, you jack the vehicle up at that wheel, install a vehicle stand to support the vehicle to be safe, disconect the wheel speed sensor and probe the two wires into the sensor, spin the wheel by hand and a small amount of current will be produced meaning the the sensor is working and the wheel bearing is installed the correct way, you can also do a continuaty test on the sensor by switching the multimeter onto ohms, but be very carefull, if this sensor has three wires you cant do the continuaty test because of the integrated circuit in the sensor, the three wire sensors opperate on a voltage from 5Volt and it would be destroyed by the multimeter opperating on 9Volt.
If the continuaty test passes and the bearing is installed the correct way, the most comon fault would be a break in the wiring leading to the PCM
Hope this will be helpfull.

Posted on May 04, 2009

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Prius warning lights abs pressure brake


abs concern. abs light. also, red brake light. is this correct? drive axle was replaced. testing for abs codes can lead to a pinpoint test.
once codes are read, there may be a specific area indicated to run tests. since the wheel hub area was where the recent work was performed...i suggest looking at the abs exciter ring for the wheel speed sensor.if the teeth are broken off , and or smashed or flattened. the hub, or the ring attached may need correction. there may also be a speed sensor wire and sensor concern after working in that area. inspect the sensor, its wires, and the connectors that attach it to the wiring. take the result of the code check, pinpoint test, and physical condition of the parts into mind, and decide. report your findings. you will need a good quality DVOM test meter to perform electrical tests. and guided diagnostic from the applicable service manual.

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sounds like the battery plugs on the passenger side were disconnected and not connected. I don't think the brake sensor connectors have to be messed with in the wheel wells to change the struts but if you did you need to reconnect them checking for dirt in the connectors. It has been a long time so I hope you found the problem by now.

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I have a 2005 Chevy trailblazer ls 4 wheel drive that we just replaced the wheel bearing/hub assembly and put new brakes and rotors on now the abs light came on and won't go off. How do we reset it?


You would need to check the computer for trouble codes, fix the problem, then erase the codes. If the codes do not return, the warning light should stay off.

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1 Answer

How do i reset the ABS warning light and the rear light indicators on the dash?


usually when your front wheel bearing is wrecked the abs will go off.

cant reset the abs light till you change the bearing and get a new sensor..... if the bearing is the problem.

jack the front end up and see if you can wiggle the tire and up and down and see if it seems to wiggle in the hub. if the tire wiggles in the hub (not the suspension, in the hub) your bearing is worn out and the sensor has gone off. the new sensor comes with the new bearing.

good luck and let me know if i helped

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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...


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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Had front brakes changed on my 2005 kia sportage now the ads brake ligh and the regular brake light won't go off


Depending on how much brake work was done, either the wheel sensors have been damaged or were not properly reconnected. The regular brake warning light may be on because the ABS is disabled at the moment. Fixing the ABS problem may extinguish the standard warning light too. I suspect the brakes are working but not as an ABS-equipped system.
If you have one of the auto parts chain stores near you, take it to them for a free scan of yoru computer; the error code it finds may be more specific that the ABS warning light.

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Vitz 2005 ABS light and Speedo


as a toyota technician, its probably the wrong fitted of the ring, once you replace the bearing they will removed the ring and in that ring there is a small hole that the sensor goes in. speedometer will not work not work if there is a malfunction in abs and it is speedometer,brake warning light are integrated with abs ecu.

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Bad sensor in one wheel, they are part of the wheel bearing. Could also be a bad abs computer module, either way, not cheap.

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