Avensis cruise control failure

I had a similar problem with my Avensis. Have you checked the cable and plug connections on the throttle body? That's a common cause. A bad connection there can cause weird electronic issues.

Thanks! Where's the throttle body located, and what should I look for when checking the cable and plug?

It's usually near the air intake manifold. Look for loose connections, damaged wires, or corrosion. If you're not comfortable, take it to a workshop. It could be a faulty system, and you might cause more damage trying to fix it yourself.

Appreciate the advice. I took it to the workshop, and you were right! It was a bad plug connection. Cost me 95€ to fix. Thanks!