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Replace Your ABS Relay or ABS Controller

By , About.com Guide

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Getting Ready to Replace Your ABS Relay

Replace your ABS control unit.

Your replacement ABS relay or control unit.

photo by Matt Wright, 2008
If you're haunted by your ABS light and you've narrowed the problem down to the brain that controls your ABS, the ABS relay (or ABS controller), it's time to replace it.You've already checked the fuse. The dealer will charge big bucks to do this repair, but you can save a lot of money if you replace your own ABS relay. When your ABS is malfunctioning or off, your car's safety is compromised. If your vehicle is equipped with any type of traction control or stability management system, there is a good chance this is disabled, as well.

Difficulty Level: Novice

What You'll Need

  • New ABS control unit
  • Screwdrivers

The following how-to covers ABS relay replacement on a C-Class Mercedes, but it's similar in most vehicles. Your unit may be inside the car rather than under the hood, and it might be bigger. Check it out ahead of time to be prepared.

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