i have a 2009 toyota sienna the trac light abs light and check engine light are all on can you direct me as to what this might be? Is this an expensive fix

You need to have the codes read, you can go to a Auto Zone near you and they will read the codes for free, post the codes here for help !

Take it to a GOOD mechanic. The codes may not be accurate. If all of those lights come on, you may want to look at ABS control module. I know the previous Sienna's had a weird thing where it pointed to speed sensors being the culprit. If a dealer or mechanic is adamant that the speed sensor is the problem, ask them to guarantee problem will be fixed with the replacement sensor, for at least 6 months, with a money back or no payment guarantee. Sometimes it fixes the problem till you get on down the road. Then the lights come back on. The control modules can be expensive. You could look online. There's a company that specializes in fixing these. Remove the ABS module and send it in. They solder the loose circuit and send it back for $250-$350. Way cheaper than a couple grand for the new one. Research and ask questions. Good luck