RE: Brake and ABS Light help!!!!
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RE: Brake and ABS Light help!!!! - 10/27/2005 11:22:05 PM
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mo
Posts: 1
Joined: 10/27/2005 Status: offline
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I had the same problem - BRAKE and ABS lights on at the same time and remain on. I drive a 1999 Durango SLT. I read on another forum that the sensors can be electrically checked using a DMM. But the post gave no other info. I am not inclined to spend my cash and time shotgunning the problem by randomly replacing parts so I got out my DMM. Here is what I learned: The working rear ABS sensor (located on top of the differential) reads 2K ohms. The front ABS sensors (with connectors handily located just inside the hood above the wheel well) read 1K ohms. This was very helpfull because my diver's side reads fine (1Kohm) but the passenger side was open (no resistance). I verified the defective sensor with a 1Kohm resistor and put it across the connector leading to the the computer to simulate the sensor at stop. Then I turned on the ignition and guess what - The lights are not on anymore. So, now that I know that the passenger side sensor is open I get the right part, replace it, and my problem is fixed. If you have a simple DMM or ohmmeter, you should check the resistance of the sensors - it might save you a lot of time and trips to the parts store. You might also want to start with the front sensors first because these sensors are easily accessed. The rear is a real pain in the a**. Changing the sensor itself is quite an expereince - does anyone have any tips for making it easier?
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RE: Brake and ABS Light help!!!! - 11/17/2005 11:18:24 PM
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tudb
Posts: 1
Joined: 11/6/2005 Status: offline
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Just wanted to thank eveyone for the advice and saving me some dinero. My 99 Dakota Sport had many of the same symptons (ABS light, BRAKE light, no speedo below 30mph). One additional quirk was that the truck consistently stalled while slowing to a stop. I have a manual trans so I've been using some unorthodox footwork to navigate stop lights for the last two weeks. I bought mopar P/N 56028187AE for around $50, installed the sucka last night, and all is good. The only hitch I ran into was breaking off the top half of the old sensor while removing. Luckily, it snapped above the o-ring and didn't fall into the differential. I was able to pry the bottom half out with the help of a few choice words my old man taught me. Thanks again.
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RE: Brake and ABS Light help!!!! - 11/27/2005 9:00:04 PM
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EricStratton
Posts: 1
Joined: 11/16/2005 Status: offline
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This thread just isn't going to die, sorry. ;) I had the same problem everyone else was facing - ABS and brake lights on, speedometer not working below ~40MPH. I found this thread and replaced my rear speed sensor. Problem fixed...sorta. Now, every other time (or so) I start the car the ABS and brake lights come on. Speedometer's working correctly constantly now, tho, which is nice. If no one has seen this exact problem, I'll just go ahead and replace the two front sensors and see how it goes. If someone has seen this intermittent ABS/brake light issue, I'd love to hear how you resolved it. Thanks. '99 Durago V8 5.2L, 91K miles ES
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