Testing ABS
09-24-2005, 06:45 AM
#2
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Join Date: Sep 2004
Posts: 0
Re: Testing ABS
First thing to do is turn the key on engine off and see if the ABS INOP light comes on and then goes off. Could be the bulb is burned out and not showing you have a problem. If it does not come on at all, SCAN for DTCs. If the ABS were not functioning, it should light the ABS INOP light. When the ABS activates in a braking situation, it will light the LOW TRAC light.
09-24-2005, 07:16 AM
#3
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Join Date: Nov 2002
Location: Middle Tennessee
Posts: 1,831
Re: Testing ABS
Also, at extremely low speeds ( less than 10 MPH for example) when you first start out, the ABS module should test itself by cycling. It makes an odd noise under the hood when it does this.
I would say that if you don't hear it doing this, that there's some kind of issue.
Oh, and I'm not positive, but I don't think you'll get any ABS codes by pulling DTC's. I think you'll have to take it to a dealer and let them use a Tech2 on it to talk to the ABS computer.
I would say that if you don't hear it doing this, that there's some kind of issue.
Oh, and I'm not positive, but I don't think you'll get any ABS codes by pulling DTC's. I think you'll have to take it to a dealer and let them use a Tech2 on it to talk to the ABS computer.
09-24-2005, 08:01 AM
#4
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Join Date: Aug 2002
Location: Melvindale, MI, US
Posts: 4,677
Re: Testing ABS
Originally Posted by LWillmann
Also, at extremely low speeds ( less than 10 MPH for example) when you first start out, the ABS module should test itself by cycling. It makes an odd noise under the hood when it does this.
I would say that if you don't hear it doing this, that there's some kind of issue.
Oh, and I'm not positive, but I don't think you'll get any ABS codes by pulling DTC's. I think you'll have to take it to a dealer and let them use a Tech2 on it to talk to the ABS computer.
I would say that if you don't hear it doing this, that there's some kind of issue.
Oh, and I'm not positive, but I don't think you'll get any ABS codes by pulling DTC's. I think you'll have to take it to a dealer and let them use a Tech2 on it to talk to the ABS computer.
09-24-2005, 06:43 PM
#6
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Thread Starter
Join Date: Jun 2005
Location: Indiana
Posts: 1,834
Re: Testing ABS
Originally Posted by LWillmann
Also, at extremely low speeds ( less than 10 MPH for example) when you first start out, the ABS module should test itself by cycling. It makes an odd noise under the hood when it does this.
I would say that if you don't hear it doing this, that there's some kind of issue.
Oh, and I'm not positive, but I don't think you'll get any ABS codes by pulling DTC's. I think you'll have to take it to a dealer and let them use a Tech2 on it to talk to the ABS computer.
I would say that if you don't hear it doing this, that there's some kind of issue.
Oh, and I'm not positive, but I don't think you'll get any ABS codes by pulling DTC's. I think you'll have to take it to a dealer and let them use a Tech2 on it to talk to the ABS computer.
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