Yaris ABS issue

Slideways

Hey people

Mrs’ Yaris -2011 1.5 petrol

Has an ABS fault, open or short circuit to rear LHS. Is there anything I can check to confirm it’s the sensor as it’s built into the rear hub and I don’t want to replace a genuine bearing with an aftermarket one if it’s not going to fix it.

I have checked the front sensors to have a comparison for resistance but it doesn’t look like I can check that (unless I ballsed it up)

cheers

CoBo55

Check the wiring carefully first. Aftermarket hubs can be hassle I'd suck it up and buy a genuine one.

Slideways

Yeah, some of the current aftermarket parts are shody at best

zg3409

In theory you could check what signal type is output by the sensor and try to check a matching signal when wheel is rotated. It may be a magnetic sensor that needs power or not or an optical sensor etc. Usually it's a sensor so the risk is low and unless you have access to tools like a scope and power supply and can start probing signals from good and bad wheel it's normally wiring damage or sensor.

Slideways

just an update for anyone who may come googling.

I bit the bullet and bought a new wheel bearing assy, chucked it in, took me 15 mins and it fixed it. Will pull the old one apart and see what went wrong at some stage