ABS-light comes on and off

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Stealthyy
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Drives: 2000 6n2 1.4 75hk 16V
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ABS-light comes on and off

Post by Stealthyy »

Greetings!
I've had some problems with my Polo, the ABS-light seems to randomly come on.
I have not found any pattern, which makes the light come on.
When I checked the contacts with a multimeter I got these numbers;Image
There is not way to check the sensor at the rear. I got no on-board diagnostic tools at hand.
The ABS-light goes away when I restart the car.
danjsimmo23
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Re: ABS-light comes on and off

Post by danjsimmo23 »

this could be due to the sensors wearing out. or possibly need a new abs pump/ecu. if you have or know someone with VAGCOM get them plug it in and you can then access the ABS from there and see what codes are showing.

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alexperkins
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Re: ABS-light comes on and off

Post by alexperkins »

This can be due to either a dodgy connector under the rear bench, or the most common issue is the ABS pump contacts breaking inside the control board which can be fixed as per this DIY viewtopic.php?f=10&t=58585
Stealthyy
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Re: ABS-light comes on and off

Post by Stealthyy »

Thank you so much for your respons, both of you.
The thing is that I do not know where to find the ABS-pump.
I found the connectors though, one of them very not attached properly, and had a bit bad connection. So I fixed it, but the ABS-light is still on.
The weird thing is that the ABS-light was on, just as I started the car. Which it have never done before, usually I had to drive a bit for it to come on. It was unusually cold today, may that be a reason?

The bad connection:
Image
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alexperkins
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Re: ABS-light comes on and off

Post by alexperkins »

The abs pump is underneath where the coolant bottle is in the engine bay
Stealthyy
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Re: ABS-light comes on and off

Post by Stealthyy »

Ok, I got the car to the workshop. The errors that came up was: The hydraulic pump and the rear right speedtransmitter. I will try your tips, thank you so much for the respond.
lokesh
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Re: ABS-light comes on and off

Post by lokesh »

I am also facing the same issue. ABS light only comes up after driving few kms. While starting the car there are no errors. VCDS scan shows rear left ABS sensor intermittent signal. But I have tested 3 sets of ABS sensors and also changed the rear Abs ring but still facing the same issue.( Few days back the left rear brake cylinder was changed )
Any help would be really appreciated ?
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