My AC light is blinking and the air dont get cold?

My 2003 Toyota Camry AC often starts blowing hot air and the AC light starts blinking. I don't know why the following process works, but it does. Using the temp selector (left) reduce the temperature all the way down to Max Cold and then push the Auto button. It will start blowing out very cold air. After a little while push the temp selector to the desired temperature.

Make sure your coolig fan(s) are running while the ac is on. I''m not sure how you now that you have sufficient refrigerant in the system, but I would also have that checked. Over filled systems can act that way too! Last but not least, high and low pressure switches should be checked, amd if all else fails, check the expansion valve.

Could be bad AC clutch relay. Just replaced mine ($11 at autozone). It is located in the relay box just behind the battery.

Either the belt is slipping, or the compressor is bad.

the most common reason for the AC light to blink is that the system is low on refridgerant, have the system pressures tested to confirm this is the problem..

the a/c system needs to be drawn into a vacuum before being charged to make sure there is no air in the system and no major leaks,should really be done by a trained pro to make sure it is done correctly to ensure long service of your a/c system and compressor,most shops have the correct a/c machines to perform this,hope this helps

sounds like head pressures to high possible expansion valve plugged or bad

there is a updated ac relay for that, go to your toyota dealer and buy a new mgt relay its located in the fuse box in the engine bay on the drivers side.

Hi there,

TO INITIATE TESTS:
1. Set blower to HIGH
2. Set mode position to PANEL (AC vent air)
3. Open all AC outlets
4. Temp. on full cold
5. Start engine
6. Push WASH and REAR WIPER switches for 5 seconds until all panel lights are on solid
System will then go through it's paces as it calibrates the climate controls
7. When calibration is complete only the REAR WIPER switch/light should be flashing. Press this switch to extinguish the light
This will stops blinking lights.....

Good Luck!!

Thanks

The procedure for re-setting the HVAC control panel on a 1998 Dodge Grand Caravan follows:
With ignition on but not running
1. turn knob to air vents
2. turn fan knob to ON
3. temperature setting on COLD (2X) {I have dual temp controls}
4. hold top(rear wiper) and bottom (rear wiper with wash) buttons pressing down together until all the buttons cycle through (this will require 1 to 2 minutes of continuous pressing)
I learned this from a very helpful local Dodge service adviser