How do I clean the idle air control valve on my 1999 lexus gs300

Remove screws both sides of air flow vent. safley remove the electrical sensors attached on back of flow from side closest to the carburator other on the tube leave on there. manually open the caburator with finger and spray cleaner inside the Carb

Remove from car, carefully scrape crud from inside of passages being careful not to damage valve seat, spray out with carb cleaner, allow to soak, repeat, then spray out with compressed air. Check all hoses and passages on engine too.