sugarspotz

2002 es300
I was told a few years ago I had a vent control module going bad.


ac makes a loud bubbly grumbly noise and now an electrical "read" noise. the electrical noise is coming from foot well. sounds like the kick plate but definitely the foot well. the ac noises are in front of the driver.


I have found vent modules and there are 4 of them. im being told the "actuators" is failing that's why im hearing the electrical signal being sent repeated times. would an actuator be a vent module. the ac & heater modules are behind the ac panel in the dash

gtstcactus

what year is your car? have you run a/c diagnostics?

sugarspotz

No codes in cpu yet. I have a friend with a scannerS that I will have test it then. Im having some other things that he cant test too while we are at it.

PFB

I assume you are referring to your 2002 ES300. If so, there is a sequence of buttons that you can press on the climate control unit that will display stored AC trouble codes (if any) on the climate control's screen. No OBD II code reader required.

Unfortunately I don't remember the sequence, but if you do a google search, or search this site, you may find it.

Otherwise, hopefully someone that does know will chime in.

BTW, You should always include the year and model of your car in your post. (I had to look it up on your profile)

Phil

sugarspotz

Sorry I though it was on my moniker but it doesn't show on this site. 02 es300

sugarspotz

found this


"Running the A/C system diagnostics: Press RECIRCULATION and AUTO buttons together and turn key to ON position and watch the LCD aircond. system screen normally used for temperature settings for a numerical code indicating the problem area. BTW, zero zero (00) means normal. First, all indicator lights will flash 4 times, then a buzzer beeps. When error codes are displayed a short while later, slower display can be activated by pushing RECYCLE."


once in test mode you can start the car to test temps etc


Push front defrost button and it will put you into actuator mode? it moves through the vents positions individually. Once in this mode press recycle to stay in a certain position for testing.


to clear ac codes press front and rear defrost together





told to test on sunny day or it can throw solar senor codes falsely.

gtstcactus

Yeah that's the procedure on my 1992... So if it works it should check all the sensors and then run through all the actuators (or whatever controls the routing of airflow to your selected destination) to test they are ok...

I can't recall off the top of my head which button but once activated there is another button press to switch between the sensor and actuator check (I think)...

sugarspotz

codes 21 and 24 solar circuit both sides. Not sure what that means yet. This is what is stored I will clear and manually test in full sun.

Mphidd

I'm going to try this on my 1999 ES300