AC does not work for few minutes

Hi and thanks for using 2CarPros. Com. It sounds like the system is freezing up. First, make sure you are not running the system all the time on the recirculate setting. Once the vehicle cools down inside, change it to fresh air.

If that does not help, you will need to check the evaporator temperature sensor which is located under the dash, attached to the evaporator in the HVAC unit. It is not easy to access.

Here are the directions for checking the sensor and the pictures which correlate with these directions:

INSPECT NO. 1 COOLER THERMISTOR

(a) Measure the resistance.
Standard resistance:
NOTICE:
* Touching the sensor even slightly may change the resistance value. Hold the connector of the sensor.
* When measuring the resistance, the temperature of the sensor and the cooler thermistor must be the same.
HINT
As the temperature increases, the resistance decreases (see the graph).
If the operation is not as specified, replace the cooler thermistor.
INSPECT PTC HEATER ASSEMBLY
(a) Measure the resistance.
Standard resistance:
If the resistance value is not as specified, replace the PTC heater assembly.

I hope this helps. Once of the most common symptoms of a bad thermistor is exactly what you have described. Keep in mind, other than checking the sensor's resistance based on temperature, you really cannot tell if it is bad. Dirt can even cause it to fail. However, make sure the fresh air mode is used. Constant recirculated air can cause the system to freeze up.

Take care,
Joe