ABS Brakes - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 05-06-2008, 01:38 AM   #1
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Default ABS Brakes

My ABS brake light is on. We have checked the brakes and bled the lines and it still comes on. It says that the pedal shoul pulsate when you have your foot on the brake and that isn' happening. Does anyone know what might be causing the light to stay on?
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Old 05-06-2008, 01:42 AM   #2
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It should only pulse when the ABS has taken control. For example when the tires are in a slide, it pulses the brakes. It most likely is a wheel speed sensor. Check the cables going to each wheel and make sure they are all connected and not worn. If the light is on then they it most likely not functioning at all. My suburban just went through that about 4 months ago and found it to be a bad wheel sensor.
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Old 05-06-2008, 01:47 AM   #3
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Thank you for your help. I will definetely check that out.
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Old 05-06-2008, 01:53 AM   #4
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If it isn't functioning at all what would be the next step?
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Old 05-06-2008, 02:00 AM   #5
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I am not sure if there are any codes for the ABS system on the 92 model or not. There are others on here with a little more knowledge that will have more input. I ended up taking mine to the dealership to find out what the problem was and then changed the sensor myself.
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Old 05-06-2008, 02:03 AM   #6
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Default ABS Brakes

There are sensors for each wheel. Right? If there is one off would it stop the whole system from working properly?
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Old 05-06-2008, 02:14 AM   #7
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Yes, it needs to see the input from all the sensors. Why, is there one off that you know of?
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Old 05-06-2008, 02:17 AM   #8
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Default ABS Brakes

When we got the car the driver side sensor was unplugged. But all the brake lines and brakes are new.
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Old 05-06-2008, 02:22 AM   #9
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Is it plugged in now? With it plugged in, does the light go out? You will want to make sure the connectors are clean before you plug it in. If it was unplugged for awhile it probably won't make a good connection until it is cleaned.
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Old 05-06-2008, 02:41 AM   #10
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Default ABS Brakes

Its plugged in now and the light still comes on. But I am not sure how long it was unplugged so i will go ahead and clean the connector and see what happens after i do that.
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