[s2man]

I can't vouch for the '07 Yaris, but every car I've worked on had a simple threaded rod and nut to adjust the cable from the brake lever/pedal. Older ones were under the vehicle, where the cable from the lever attaches to another cable going to the rear brakes (easy access, but gets muddy/corroded, and difficult to adjust). Others were the other end of the cable, at the lever (nice and clean, may be difficult to reach). YMMV.