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Seat Toledo 2.0 AGG 1998 - ABS new rear RH sensor fault #

Posted by Peter Warman on January 18, 2013, 8:09 am

Year of Manufacture *: 1998
( Optional ) Engine Code or CC: 2.0 AGG

Hi All

Just need your opinion on this

A garage down the road asked me to look at this. They have replaced the RH rear wheel speed sensor as it logged a code for this wheel. They had to wait 2 months for sensor from Seat as an aftermarket one was not available

They sent the customer on their way and about 8 mile later the ABS light was back on (with the same code)

They brought it up to me and I disconnected both the LH and RH sensors (under rear seat) and scoped while spinning each wheel up (same speed)

Below is the LH rear (known good sensor)

Below is the RH rear (new one fitted)

My thoughts are that even though bought from Seat it may be a non "Genuine", or it has a shorter reach, they destroyed the old sensor getting it out so they cannot compare the length

What do you think?

Peter

Re: Seat Toledo 2.0 AGG 1998 - ABS new rear RH sensor fault

Posted by Ed Kaps <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5536' width='330' height='300' border=0 style='border:none;'> on January 18, 2013, 1:12 pm, in reply to "Seat Toledo 2.0 AGG 1998 - ABS new rear RH sensor fault"
Edward Kaps

Hi Peter
In the first one you were getting tired and slowing down.
in the second one, air gap excessive, try modifying mounting area to close up a bit.
Ed Kaps

Re: Seat Toledo 2.0 AGG 1998 - ABS new rear RH sensor fault

Posted by Peter Warman <iframe src='https://members4.boardhost.com/ukautotalk/info/user=Peter+Warman' width='330' height='300' border=0 style='border:none;'> on January 18, 2013, 1:35 pm, in reply to "Re: Seat Toledo 2.0 AGG 1998 - ABS new rear RH sensor fault"
Peter Warman

Thanks Ed

I thought this was the more likely case, but the sensor plugs in from the back of the hub and appeared to be flush up against the back plate

I am thinking that this is probably a cheap aftermarket sensor being sold as a Genuine part, but in reality is probably no longer manufactured for this vehicle

The garage that fitted it has spoken to TPS, but they are not interested, they told him to book it into a VW dealer to make a claim

Peter

Re: Seat Toledo 2.0 AGG 1998 - ABS new rear RH sensor fault

Posted by aidan birley <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT2879' width='330' height='300' border=0 style='border:none;'> on January 18, 2013, 1:37 pm, in reply to "Re: Seat Toledo 2.0 AGG 1998 - ABS new rear RH sensor fault"
Aidan Birley

Peter

Agree with Ed looks like slightly bigger Gap. assuming wheel speed is the same !

Is it possible to swap wire left to right see if it then logs same or other side fault ?

Also try scoping with sensor connected & preferable at ECU.

Aidan

Re: Seat Toledo 2.0 AGG 1998 - ABS new rear RH sensor fault

Posted by Peter Warman <iframe src='https://members4.boardhost.com/ukautotalk/info/user=Peter+Warman' width='330' height='300' border=0 style='border:none;'> on January 18, 2013, 1:44 pm, in reply to "Re: Seat Toledo 2.0 AGG 1998 - ABS new rear RH sensor fault"
Peter Warman

Thanks Aidan

The car has gone back to them now (a UCCC), they just wanted me to give them some idea of the likely cause. They don't have a scope

so not much point in me relaying any more info to them

Thanks for the advice lads

Peter

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