On the 2002 Sienna the low pressure AC Port is on the passenger side just behind the radiator cap and between the radiator cap and the firewall. This position makes it hard to get any of the cans you can buy at an auto parts store to reach the fitting and still be able to view the gage. Most of the auto parts store charging systems have pretty short hoses. I went to Home Depot and bought a piece of high pressure hose, two brass hose couplers and 4 hose clamps. Extended the hose and I was able to read my gage without needing to be a contortionist.
Good Luck,
Quinton
Usually the refrigerant has leaked out
what cause the ac light to blink on a 1999 Toyota sienna
ac ligting flaxing on 2002 toyota camry
It is located on the left side of the engine on the larger line.
The AC belts are probably stretched and loose. I had the same problem and replaced belts and cured squeak.
give location of ac relay give location of ac relay
let it sit.
If the AC light is blinking in the Toyota 98 Sienna, it means that something is internally wrong with your AC, it has stopped working, and it is recommended that you take it to the dealer to repair. This is not a very specific answer, but that is exactly what it says in the user manual. I find if I stop, turn off the car and AC for about 15 minutes, then restart, it will work again, until a week later and I have to repeat the process.
Under the dash in the heater?AC housing.
Use a flashlight and shine it on the rear left side near the wheel well (of the right front wheel). You will see a cap with an 'L'. (Ref: http://www.2carpros.com/forum/2000-toyota-sienna-where-is-low-pressure-port-to-add-refrig-vt143320.html)
it is on the right side of the throttle body
It's telling you the revolution sensor is not matching the revolutions of the engine. The ECU takes over and cuts current to the AC when this happens and the ac light will start blinking. A turn the AC of then turn it back on and it's not blinking tells you the problem is going to lead to no AC if you don't get it fixed.