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Old 03-03-2011, 03:04 PM   #1
kiway22
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ABS brake lights intermittedly comes on.

This is what i got, from a snap-on scanner.

Teves IV Codes

45-LF inlet supply voltage interruption
11-Valve supply Valve circuit
44-RF isolation valve circuit
42-RF oulet valve circuit
41-RE inlet valve circuit
56-LR outlet valve circuit
55- LR inlet valve circuit
52- RR outlet valve circuit
51- RR inlet valve circuit
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Old 03-03-2011, 06:52 PM   #2
danielsatur
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Re: ABS brake lights intermittedly comes on.

Check your front wheel speed sensors.
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Old 03-29-2013, 09:39 AM   #3
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Re: ABS brake lights intermittedly comes on.

As you can see, i have been away for awhile. I replaced both sensors on each side, but the ABS brake lights. Still comes on and goes off after awhile, while i am driving.
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Old 03-29-2013, 10:20 AM   #4
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Re: ABS brake lights intermittedly comes on.

None of those codes have anything to do with speed sensors.......

This is a real old system......don't even know if parts are available........if you want to diagnose this yourself, you have to know how to read schematics, and get a GM manual for this, otherwise I recommend a GM dealer.....the other alternative, is remove the system and put "base" brakes in.....or live with it....I assume the base brakes work, you just have no ABS function....
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Old 04-02-2013, 12:45 PM   #5
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Re: ABS brake lights intermittedly comes on.

In the state of Va, vehicles are inspected once a year, to make sure all safety equipment, are working. If they find the ABS is not working, they can reject that vehicle.
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Old 04-02-2013, 03:29 PM   #6
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Re: ABS brake lights intermittedly comes on.

Same here in Massachusetts.......
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Old 09-08-2021, 01:14 PM   #7
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Re: ABS brake lights intermittedly comes on.

I was at pick-n-pull during the year 2019, looking for a part for my wiper motor. The Aurora that I got the part from, also had a ABS brake module on it. So I grabbed that too.
After installing the brake module, the ABS brake light works normal. It comes on at start up, then goes off. The traction control button also works now.
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