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ABS/Airbag Computer adn Brake Problems

steveg05steveg05 Posts: 2
edited April 18 in Ford
Ok the problem starts with, I was having some break issues so I replaced the pads, calipers, and brake hoses. The issue continued so I then replaced the calipers, pads, and rotors. The issues is that the right wheel is locking up. I is over heating and applying to much pressure. This issue gets worse the more I brake and the longer I drive. I had it into a shop they could not find anything wrong. Eventually they replaced the ABS motor and junction block. Things seemed to be fine but then the problem came back. While driving one day the brakes acted up and then the ABS light finally came on and has been on since. Tried to get the ABS code read but every place says their scanner can not connect to the ABS brain and that I need to replace it. So yesterday I replaced the ABS brain. The light has not gone off and I still have the same issue, the right wheel is still acting up. I had it into a local shop yesterday and we did a ohm test on the DTE connector to the ABS connector, which we found the information from his Mitchell source. Everything that we tested points to the ABS brain box being junk, but we just replaced it. While we had the code reader connected we tried to read all the other systems and what do you know the code reader can not connect to the Airbag computer either. The Code reader is a Snap-On, brick. He has used it for years and he is not the only place that has told me they could not connect the the ABS computer. The ABS light is on but the Airbag light is not. The Airbag light comes on when you start the truck but after the self check it goes off.

If anyone has any leads or information I would really appreciate. Other then this issue the truck it great. I would love to keep it but I can not afford to replace brakes every 3k miles or so.

Vehicle Info
1999 Ford Ranger 3.0 V6 Flex Fuel (V)
4X4 with 4WABS

Thanks
Steve

Comments

  • bolivarbolivar Posts: 2,316
    A simple problem is the rubber brake line on the right wheel may be collapsing internally and not allowing the fluid to release when the brake is released. Keeping some constant pressure on that brake pad.

    Are the techs with the scan tool re-setting the ABS code? If so, does it then still come back on?

    If there is nothing mechanically wrong, I think you may need a mechanic with more extensive knowledge about the ABS electronics. I do know a 'regular' scan tool cannot access the ABS system. It is a different connector and possibly a different scan tool.
  • steveg05steveg05 Posts: 2
    "A simple problem is the rubber brake line on the right wheel may be collapsing internally and not allowing the fluid to release when the brake is released. Keeping some constant pressure on that brake pad."
    Ya put new hoses on both sides, still same problem.

    "Are the techs with the scan tool re-setting the ABS code? If so, does it then still come back on? If there is nothing mechanically wrong, I think you may need a mechanic with more extensive knowledge about the ABS electronics. I do know a 'regular' scan tool cannot access the ABS system. It is a different connector and possibly a different scan tool"
    Its not re-setting the code that is the problem. The testers can not actually connect to the computer. They all get a connection error. We tested the connection between the ABS computer and under the dash. It tested out fine, which means we should be able to connect to the computer but can not, therefor I replaced the ABS computer. I still have the same problems with the new computer.
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