Toyota Repair: abs light on, sensor circuits, toyota sienna

Question
I have a open o short circuit in the hydraulic brake booster solenoid circuit on the abs system,code CO226. How can check this circuit. My car is a Toyota Sienna CE, 2007. thank you for your help

Answer
Here is the code definition: Fault c0226 - open/short circuit and hydrolic brake booster
The best way to diagnose this is to have the toyota dealer connect their diagnostic tools to pinpoint the problem, most likely this is a problem with the brake booster or front or rear speed sensor circuits.