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Toyota Aygo 1.0 2014 - Rear brakes holding on MoT brake test - Fixed #

Posted by Martin Kelly on August 30, 2018, 2:04 pm

Year of Manufacture: 2014
Engine Size and Code: 1000

Hi, when doing MOT brake test on the rear brakes they were both holding on slightly, 40-50kg load, for about 5 seconds and then released.
TRC OFF button was activated to disengage the ABS etc.
I won't bore you with all the investigation and part swapping but nothing had any effect.
There were no vehicle testing advice details when logging on for the MOT.

I called Toyota tech hotline, very helpful.

By activating the TRC OFF button does not completely turn off the ABS system. We used Verus to put the ABS system into INSPECTION Mode, this then gave us perfect readings and no holding on.

Hope this helps someone in the future and avoid the time wasting.

Martin.

Re: Toyota Aygo 1.0 2014 - Rear brakes holding on MoT brake test - Fixed #

Posted by Alan Lange <iframe src='https://members.boardhost.com/ukautotalk11/info/user=ukat3293' width='330' height='300' border=0 style='border:none;'> on September 1, 2018, 8:22 pm, in reply to "Toyota Aygo 1.0 2014 - Rear brakes holding on MoT brake test - Fixed #"
Alan Lange

Hello Martin, l’ve seen this a few times on different makes & have always believed this is to aid “hill starts”, maybe wrong though.

Re: Toyota Aygo 1.0 2014 - Rear brakes holding on MoT brake test - Fixed #

Posted by Chris Angus <iframe src='https://members.boardhost.com/ukautotalk11/info/user=ukat5111' width='330' height='300' border=0 style='border:none;'> on November 29, 2018, 3:28 pm, in reply to "Toyota Aygo 1.0 2014 - Rear brakes holding on MoT brake test - Fixed #"

Was there a VSI for this car when you logged on, as you know you can't be using a scan tool when doing an mot?
Must be another way surely?

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