ABS faul codes
10-31-2008, 11:20 AM
#1
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ABS faul codes
When I do first scan it shows Fron Left as well instead of 65535. But when I press to delete codes Fron Left disapears and I get 65535.
After that I restart VAG-COM do scan again
and nothing. Then I drive the car and I get the same faults. I know, that ABS is faulty, but I don't want to believe that ABS module itself is faulty.
I have a suspicion that Front Left sensor is kaput, but still didn't had oportunity to check it with multimeter.
And my question is: maybe somebody has more experience and can explain more about this from these faul codes.
<a href="http://imageshack.us"><img src="http://img370.imageshack.us/img370/7029/absfaultcodesge2.jpg" border="0" alt="Image Hosted by ImageShack.us" /></a>
After that I restart VAG-COM do scan again
and nothing. Then I drive the car and I get the same faults. I know, that ABS is faulty, but I don't want to believe that ABS module itself is faulty.
I have a suspicion that Front Left sensor is kaput, but still didn't had oportunity to check it with multimeter.
And my question is: maybe somebody has more experience and can explain more about this from these faul codes.
<a href="http://imageshack.us"><img src="http://img370.imageshack.us/img370/7029/absfaultcodesge2.jpg" border="0" alt="Image Hosted by ImageShack.us" /></a>
10-31-2008, 07:16 PM
#2
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Re: ABS faul codes
It would make the most sense from the image you have. I wouldn't think that you would get all those sensor failures (unless they are not connected), if the module itself hadnot failed in some way. I say to trust the electronics and swap out the ABS controller.
11-01-2008, 01:46 AM
#3
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Re: ABS faul codes
ABS controller is on the way, I will swap it for checking, but...... these faults came on after coilovers installation, so I still hope, that there is a problem with sensor, which is wrongly inserted probably........
11-01-2008, 04:27 AM
#4
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Re: ABS faul codes
The electrical check doesn't look for "operation" on that the sensor is or isn't there. Those codes say that the sensors are not connected (no signal). If they are inserted correctly or not is a seperate problem.
11-01-2008, 08:57 AM
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I doubt this is the controller - you haven't tested anything
No signal, did you repair the brake light switch fault, is that why it's crossed out? Brake light switch is input to ABS controller. Do you have brake lights? Fuse on top of ABS relay intact?
If yes, then a no signal means either the sensors aren't in far enough to read the hub splines, or they are all bad. IMO, if all was good before the coil over swap, you haven't inserted them far enough.
HTH
Scott J
If yes, then a no signal means either the sensors aren't in far enough to read the hub splines, or they are all bad. IMO, if all was good before the coil over swap, you haven't inserted them far enough.
HTH
Scott J
11-01-2008, 10:10 AM
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Usually a good idea to use the PVC abs sensor spacers that cost pennies each...
They ensure that the ABS sensor is the proper distance from the splines as mentioned above.
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11-01-2008, 10:52 AM
#8
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Re: I doubt this is the controller - you haven't tested anything
Don't pay attention to brake light switch, this fault is always on when You do scan without pressing brake pedal before. This is normal.
Yes, I still haven't tested anything, and I'll do that only somwhere after five weeks, because I have to leave home for that time.
I think, that one sensor is badly inserted, and after some time of driving it forces to switch off all ABS unit.......
Yes, I still haven't tested anything, and I'll do that only somwhere after five weeks, because I have to leave home for that time.
I think, that one sensor is badly inserted, and after some time of driving it forces to switch off all ABS unit.......
11-01-2008, 11:16 AM
#9
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Re: Actually they are 1.80 at the dealer.....
.... are You talking about VAG part No.: 443927817 ?? on the picture is No 12 ?
<a href="http://imageshack.us"><img src="http://img207.imageshack.us/img207/4319/abssensorxx2.jpg" border="0" alt="Image Hosted by ImageShack.us" /></a>
<a href="http://imageshack.us"><img src="http://img207.imageshack.us/img207/4319/abssensorxx2.jpg" border="0" alt="Image Hosted by ImageShack.us" /></a>
11-01-2008, 02:45 PM
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Figured as much on the brake light....
ABS defaults to off if there is a single sensor problem, just about all ABS units do. That said, until you fix it, you have no trans control of the center diff, as that compares ABS sensor signals for lockup of the clutchpacks.
With a coil over suspension requiring a pull of all the uprights, adjusting the sensors is your best first start.
Did you grab these codes from the trans ECU or did you use a computer directly on the ABS controller? If the latter, the trans ECU should read the same error code, which would verify whether the ABS controller is bad.
Scott J
With a coil over suspension requiring a pull of all the uprights, adjusting the sensors is your best first start.
Did you grab these codes from the trans ECU or did you use a computer directly on the ABS controller? If the latter, the trans ECU should read the same error code, which would verify whether the ABS controller is bad.
Scott J