Toyota Yaris 2002 ABS and ! Light

[Rihsky]

My Toyota Yaris has THE ABS light and handbrake light at the same time, it has 115,000 miles on the clock and is due for an MOT and I know it will fail, What is the reason for both light showing simultaneously and which parts would I need.

[CTScott]

This is actually a common issue with MK2 Yaris here in parts of the US and Canada where salt is used on the roads. Take a look a the thread below, where many discuss their woes with the ABS sensors (particularly the rears on the MK2) suffer from connector corrosion from the salt:

http://www.yarisworld.com/forums/showthread.php?t=11533

[Rihsky]

I've skimmed through the thread a little, is it best cleaning the front 2 sensors if error still occurs then replace the 2 hubs sensors on the rear?

Since you said it's a common problem with the MK2 then I'm thinking this yaris may be no good.

[tmontague]

Like the link that CTScott alluded to, due to the poor design of the ABS sensors on the Yaris they constantly need to be checked/cleaned to keep them corrosion free.

Every spring I disconnect my ABS sensors and spray them with a electrical cleanr and once dry I cover them in dielectric grease. I live in the salt belt and have yet to have any ABS issues. When I checked my sensors for the first time a couple years ago I was surprised that the sensors weren't that dirty.

I would try cleaning yours with an electrical cleaner and maybe even a fine bristled toothbrush if they are bad enough. Then reconnect after adding a bunch of dielectric grease. Reset the ECU and see if the code comes back on. If it does then you'll likely need new hub/sensors and even an ABS electrical connector