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ABS & Parking Brake Lights Flash On / Off While Driving

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  #1  
Old 10-21-2016, 10:46 AM
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Exclamation ABS & Parking Brake Lights Flash On / Off While Driving

I need some serious help, please!

First, this is how I feel about my dilemma (it's Friday, enjoy the humor)

Back Story
I know I have a guardian angel. My ABS failed on Interstate 495 some time ago (at least I think it was my ABS). My truck spun about 90 degrees and nobody hit me. After I stopped shaking like a leaf, I did some research and replaced the ABS sensors on the front (both of them).

The lights are STILL ON!

What is the deal? I found this on the Interwebs:
The ABS light comes on whenever there is a fault in the anti-lock braking system in a vehicle. The fault can be a low amount of fluid in the ABS reservoir to an electrical malfunction in the wheel speed sensor, control unit or the pump, but regular braking function is unaffected.

So, should I go through that checklist? Any other advice?
 
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Old 10-21-2016, 04:49 PM
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Have the ABS codes scanned while the light is on. ABS codes are automatically cleared every time the vehicle is shut off.
 
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Old 11-04-2016, 07:48 PM
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Don't think the ABS codes are cleared automatically when the truck shuts off. "Soft Codes" will turn off the ABS light on the dash but the codes are still there. Soft codes are intermittent codes normally.

"Hard Codes" on the other hand keep the ABS light on even after restart. They are usually related to complete sensor failure of other time consuming PITA problems that cost money.

You need to have the codes read if you can't do it yourself and then start digging.

Post the codes when you can.
 
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Old 11-07-2016, 02:32 PM
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My guess would be the infamous E.B.C.M. problem. There are numerous items around the internet explaining the situation. The Electronic Brake Control Module sits atop your ABS pump. There are six solder points on the circuit board inside the EBCM. These points can be resoldered and the lights on the dash go away. It was a factory fault in a lot of our Blazers. There are some eBay dealers that claim to fix it for about $45.00. You could look into that. I have. I just haven't done it yet.
 
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