HELP! ABS & BRAKE LIGHT ON SIMULTANEOUSLY!

[Maranda]

Originally Posted by Exiwolfman

to resolve this problem that is common on Yaris and other Toyota's ...for Yaris u will need to scan the car find out if one or both abs harnesses need to be replaced this may solve the problem but for most part on the older cars u will need the wheel bearing hub replaced and harness .

Is there a way to know if only the harness are to be changed, or the hubs?
I want to take advantage of the nice weather to check it tomorrow.

I did a scan, and in my case, I have the error codes for the 2 abs in the rear.

[CTScott]

Originally Posted by Maranda

Is there a way to know if only the harness are to be changed, or the hubs?
I want to take advantage of the nice weather to check it tomorrow.

I did a scan, and in my case, I have the error codes for the 2 abs in the rear.

You can easily tell which needs to be replaced by disconnecting the connector from the sensor in the hub. If the sensor's pins are intact you just have to replace the cable. If the sensor's pins are severely corroded, then the sensor will likely need to be replaced.

[Edmontonian78]

Originally Posted by CTScott

You can easily tell which needs to be replaced by disconnecting the connector from the sensor in the hub. If the sensor's pins are intact you just have to replace the cable. If the sensor's pins are severely corroded, then the sensor will likely need to be replaced.

You can take some sewing needles and use them to check for continuity on the wiring harness with a multi meter. On the 2007 sedan model if you push down the back seat so you can see the inside of your trunk; the connector for the speed sensor wire is right inside the plastic trim and you just need to remove a plastic pin that holds it in place.