Good Morning,

Hoping someone could give me a quick idea on where to look for a problem I have with the AC only blowing in defrost mode in my Bonneville? I have electronic controls. I replaced the motor about 9 months ago and it was working great. About a week ago my wife got in it and tried to turn it on and it would only blow in the defrost vents. Does this model have a chip or board with actuator door program? I would think this model was past the vacuum controls by now?

2002 Bonny SLE 3.8 Not supercharged.

Any help would be appreciated. Thanks everyone !

hello im sure this isn't much help but i do believe that it uses a small servo motor to control the air flow to dash or floor, im having similar issues with a 99 park ave.

Yup, the airflow actuator probably bit the dust. Gonna need to find yourself a replacement and then dig into the dash. The procedure is outlined in the 2000-2005 common problems thread at the top of this section.

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-Car Guy Carl
"Penelope" - 2003 SLE - 247k Miles
"Sydney" - 2000 Honda S2000 - 98k miles

A big Thank you to all who replied. I am going to take care of this repair next week.

I know this is old but have you checked the plastic vacuum line coming off the engine to the firewall that's usually an issue with the line getting a hole in it. Have you fixed the issue yet?

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2003 ssei 88k miles
3.4 zzp mps, 3" off road downpipe, zzp front plog, zzp pcm, fwi, gxp front and rear brakes with ss hoses

Sorry guys, I should have updated my post earlier.

The problem has been fixed. I put a new radio in this car, along with a sporty set of rims, and set it up for my son to drive. 16 year old new driver ! Anyway, with taking the dash apart to get to radio I found the plug in for the HVAC controls was not plugged in all the way. Once I put it all together it started working again. I will check on that hose from the motor though so thanks for that piece. Its good to know every part of the system when it comes to trouble shooting.

Thanks again for everyone's help!