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VancouverW8 View Drop Down
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  Quote VancouverW8 Quote  Post ReplyReply Direct Link To This Post Topic: ABS & Traction Lights
    Posted: 29-Jun-2009 at 13:56
My ABS & Traction lights are coming on intermittently, sometimes while driving and other times on startup. It has been in the shop at VW for a total of three days now, and im getting somewhat frustrated!

Symptoms are:
1. The ABS fires on the front left wheel when coming to a slow stop.
2. When the lights are illuminated, if you lift off the throttle then the car jolts quite considerably. This does not happen when the lights are not illuminated.

I have had the front left wheel speed sensor replaced - no change. Im leaning towards the ABS module, but not sure why the car would jolt when you lift off the power? Any thoughts?

Codes:

18014 - Rough Road/Engine Torque Signal from ABS: Electrical Malfunction
        P1606 - 35-10 - - - Intermittent
16885 - Vehicle Speed Sensor: Implausible Signal
        P0501 - 35-10 - - - Intermittent
16891 - Idle Control System RPM Higher than Expected.
        P0507 - 35-10 - - - Intermittent
16840 - EVAP System: Very Small Leak Detected
        P0456 - 35-00 - -
00283 - Front Left ABS Wheel Speed Sensor (G47)
        30-10 - Open or Short to B+ - Intermittent
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SirRangeALot View Drop Down
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  Quote SirRangeALot Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2009 at 01:03
Well this happened to me tonight while going from one job to the other. The lights came on and stayed on for a good 2 minutes until I shut the car off when I got to work, but when I started it back up afterward (the car was sitting for 5 hours) there was nothing. The car was running fine and I experienced no problems. The first thing that came to mind was the torque converter but then I thought that made no sense b/c the ABS light wouldn't be on with a torque converter malfunction. Has anyone else experienced this?
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  Quote 02passatw8 Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2009 at 01:16
Yea happens to me a few times a year its related to the wheel speed sensors, usually happens when its wet or nasty out. I assume the sensor gets stuff on it. Always resets itself on turnoff even if its a few seconds.
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  Quote SirRangeALot Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2009 at 01:22
Originally posted by 02passatw8

Yea happens to me a few times a year its related to the wheel speed sensors, usually happens when its wet or nasty out. I assume the sensor gets stuff on it. Always resets itself on turnoff even if its a few seconds.


I kinda thought (hoped) this was the case. We had some major snow dumped on us over the past day or so and the roads are still 100% snow-covered here and there. Good to know other people have this issue and it's not serious.
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  Quote 02passatw8 Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2009 at 01:26
Yea its been going on for 2 years never got worse or more frequent.
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  Quote IndyW8 Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2009 at 08:05
Mine are on constantly. It really sucks because I can't use the cruise control when the lights are on. I'm assuming one or more wheel speed sensors are bad, but I've just been too lazy and cheap to get them checked & replaced.
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  Quote SirRangeALot Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2009 at 10:29
Originally posted by IndyW8

It really sucks because I can't use the cruise control when the lights are on.


Oh really? That's good to know...

It's funny how this thread was started by someone else six months ago, but I bump it up and it gets replies! That's the power of a search at work for you!
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  Quote VancouverW8 Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2009 at 13:26
I had the wheel speed sensor replaced, and then the dealership thought it would be a great idea to replace the wiring between the sensor and the ABS module 'Just to check' that it wasn't faulty wiring.

The long and short of it was that the ABS module required replacement.

Easy way to test to see if your sensor is shot... See if its the left or right sensor throwing the code, then change the sensors around, right --> left or vice versa. If the code 'follows the sensor' then you have a faulty sensor. If it still throws a code for the same side, then my guess is that your module needs replacing.

Does that make sense?
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  Quote 02passatw8 Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2009 at 13:41
Originally posted by SirRangeALot

Originally posted by IndyW8

It really sucks because I can't use the cruise control when the lights are on.


Oh really? That's good to know...

It's funny how this thread was started by someone else six months ago, but I bump it up and it gets replies! That's the power of a search at work for you!


I read his post when he wrote it I did not have a clue to his problem. Car jolting from abs hmmm
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  Quote 02passatw8 Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2009 at 13:45
Originally posted by VancouverW8

I had the wheel speed sensor replaced, and then the dealership thought it would be a great idea to replace the wiring between the sensor and the ABS module 'Just to check' that it wasn't faulty wiring.

The long and short of it was that the ABS module required replacement.

Easy way to test to see if your sensor is shot... See if its the left or right sensor throwing the code, then change the sensors around, right --> left or vice versa. If the code 'follows the sensor' then you have a faulty sensor. If it still throws a code for the same side, then my guess is that your module needs replacing.

Does that make sense?


Makes sense unless like you stated the wiring is faulty then the sensor could still be good. ABS modules are not cheap from what Im aware. I would try that method, then wiring, then module.
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