wooka

Does anyone no why the indicator lights on the buttons for my climate controls are flashing?
My mechanic recently changed the heater core and since i got it back i have no A.C and the lights on the control buttons flash sometimes???

Vette73

Did you pull the code as I suggested in the other thread you posted?

wooka

im not sure how to pull this code your talking about?

Goldcylon

Normally this happens when its low on Freon. But pulling the codes from your ALDL port under your steering wheel with a paper clip can get to the codes. This also could be a head unit issue and miswiring since the top end of the dash needed to come out to replace the heater core. Lot or wires and hard lines back there

CE1

This happened to ours a couple years ago and it's low on freon. Check your manual if you have one.

pcolt94

I agree you have to pull the codes but not from the ALDL connector where the codes come from the CCM and ECM/PCM. You need the get the codes from the (A/C) Control head. Use this link to get the codes.

http://www.idavette.net/tech/c4diag.htm

shakedown067

The mechanic probably didn't hook the door actuator motor back up, or at least some wire for the A/C. Considering what I went through to have my A/C working properly again (looooong story), I say it's the door actuator motor not being hooked up. Should be an easy fix. Does the heat still work?

Vette73

Read my answer to your original thread: http://forums.corvetteforum.com/c4-g...or-lights.html

wooka

The new heater core works fine but no A.C,i am going there soon with all the info everyone has givin me thus far and i hope we can get this fixed.I will fill everyone in when i get back!

SunCr

Sure would be nice to know the Year since systems vary by Year - but disconnect and reconnect the battery first and see if that takes care of it.