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Reset abs codes

I have changed the ABS control unit and the light stay on. I have a 1999 Mazda 626.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 62 Answers

SOURCE: 2002 Mazda Protege ABS & Brake light

It is most likely caused by one of the ABS wheel speed sensors, those little cylindrical nipples on the back of your rotors with the cable attached to them. One way to confirm it is to read out the OBD2 codes for the ABS system, but there are some checks you can do. Visually check all four cables and sensors , and make sure there is no build up on the sensors. Make sure that the connector they plug into has good connections. Look at the wheel speed sensor and make sure the gap between the sensor head and the sprocket is the same on all four wheels (should be no more than a mm). Disconnect the wheel speed sensor cable and use an ohm-meter to check the resistance of all four sensors (they should all be similar, but don't remember the value exactly). There is a way to just disable the ABS by pulling out the 60A fuse, but if you do that you may have to plug in a code reader and use a grounding jumper on the ABS electical access box (don't remember which pin) to reset the ABS faults, otherwise you won't be able to drive around like that because your engine rpm at high speeds will behave erratically. Also, do not drive around without fixing this problem or bypassing ABS completely because it could get you into an accident. My ABS problem was intermittent, and the ABS would sometimes kick in on completely dry pavement as soon as I touched the break pedal, it almost caused me to rear-end a car on couple of occasions.

Posted on Jul 30, 2008

  • 1 Answer

SOURCE: ABS, Traction control and handbrake

I have a Mazda Capella (626) 1998 and had similar problem other than it was running on 4 cylinders and the hand brake light was not on but speedometer was not functioning and the ABS light was on. The rear ABS senssor was the problem.
SDM

Posted on Jan 23, 2009

  • 24 Answers

SOURCE: abs light stays on

Usually means you need to have it serviced asap. This usually signifies the ABS sensor is bad or some other serious problem. While this light is on, your anti-lock brake system will not work, so it can cause serious problems if you need to stop in a hurry.

Posted on Apr 03, 2009

  • 27 Answers

SOURCE: ABS LIGHT AND TRACTION CONTROL LIGHT ON DASH

make sure u didnt break a wire, there are sensors on the brakes, make sure theyre plugged in

Posted on Jun 10, 2009

  • 400 Answers

SOURCE: abs codes co281 & co265

the first of the two codes is for the brake light switch, the one that is under the dash attached to the brake rod and brake peddle. Not much to diag on that one, if its bad it's bad, and when it sets the code that means it's bad.
The second one is for the abs modual, it's under the truck on the drivers side. It is bolted to the top of the thing that has all of the brake lines going to it. MOST all of the time that code is set the modual is bad. It can be a little hard to get the bolts out they are torqs 20 or 25(i'm getting old). There are four of them holding down the modual. There are also a couple of connectors going to it. And some of the time it will blow the fuse for the abs under the hood(its in the underhood fues block). Make sure to clean off the modual before you pull it out. You don't want dirt getting in the solinoids for the BPMV(that's the thing it's bolted to).

Posted on Oct 20, 2009

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