Yaris air condition
my car is cooling while driving and not cooling in standby mode (parking and engine is running)
Check the cooling fan operation, Do this, open hood start engine and turm the A/C on max watch the fan, does it come on? if no it cold be an A/C pressure switch or a bad fan. If it does come on feel for airflow is it blowing a lot of air into the engine compartment if no clean the cooling fins if yes you're going to need gauges.