Abs traction control and brake light on

Old Dec 28, 2014 | 08:18 AM
  #1  
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Default Abs traction control and brake light on

I have a 2002 ls1 that I'm having issues with these warning lights randomly coming on. If I take a slight turn to the left the lights will come on and stay on. The previous owner replaced the right side hub only before I bought the car from him and he told me it could be the abs module. Any idea what could be causing it?
 
Old Dec 28, 2014 | 08:22 AM
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test the wire harness between the hub and main wire harness. known to fail. other then that i would look at the abs. it may be best for you to take it to dealer to have it scanned with a abs scanner.
 
Old Dec 28, 2014 | 02:21 PM
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The problem is probably not with the hub/sensor, but with the cable to it. When you turn the steering wheel, it moves the cable.

Why did he only replace the right side? Perhaps he had it scanned and the scan showed the fault on that side. I would focus on the right side cable and connectors.
 

Last edited by GaryDoug; Dec 28, 2014 at 02:23 PM.
Old Dec 31, 2014 | 08:19 AM
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Try replugging the connectors to the front hubs first. Mine was doing this, replugged and a spray of wd40 and the fault never came back. If not then maybe replace the flex cables to the hubs.
 
Old Jan 1, 2015 | 07:39 PM
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I will do that. Really cold right now might have to wait before I do anything. Thanks for the info
 
Old Feb 14, 2015 | 09:02 PM
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Ok took the cables off and cleaned them and put them back and the light stayed on. I was told the abs module might be bad. Is that the one located on the drivers side in the engine compartment.
 
Old Feb 14, 2015 | 09:12 PM
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Did you check the cables with a meter for intermittent continuity? Connect the meter to each end of each wire and wiggle the cable a lot. Notice any break in the reading.

The wheel sensor can be defective also. Just less likely than the cable.

Sorry, I was thinking of a 94. Yes, the module is where you said, under the hood.
 

Last edited by GaryDoug; Feb 14, 2015 at 09:22 PM.
Old Feb 14, 2015 | 09:23 PM
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Yes, it's where you said.
 
Old Feb 15, 2015 | 07:08 AM
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No I did not check the connectors with a meter. I should have done that.
My other question is if I was to get a used abs module from a similar car would I have to get it programmed to mine.
 
Old Feb 15, 2015 | 08:56 AM
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Since you stated the problem occurs when turning to the left, that seems to indicate a cable or sensor fault.

I don't think there is any programming to do on a replacement module.
 

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