Birdman

I have a 2000 C5 that seems to have the heat stuck on indefinitely on the passenger side. I was told the A/C just needed to be recharged but go figure it's something worse than that. I "believe" that the driver's side is working fine, as it changes temps but never gets colder than "luke-cold", as in slightly better than lukewarm. The passenger side, however, always blows hot air, no matter what it is adjusted at.

I also noticed that the passenger side **** on the dual climate control doesn't light up like the other lights and doesn't seem to change the temp at all, no matter where I turn it.

The code shown last I checked was: B0446 - Right Actuator out of range.

Smoken1

Google "b0446 corvette" there are alot of threads that come up with things you can check

Birdman

Thanks, I would never have thought of that!

BigGun

Well..thats your problem. You can try resetting the code with the dic or disconnecting the battery and maybe get a temporary fix. Ultimately it will need to be replaced. Since you stated it is also not as cool as it should be on the driver side you may also need to recharge or top off the freon but the heat on the passenger side it due to the bad actuator.

Birdman

I was guessing that the warm air on the driver's side was due to the heat mixing in from the right side? Or do they not mix at all?

BrianAgar

Birdman, does the thermostat readout show an "EXT" when you try to control the temp?

Birdman

No sir. The left **** I can feel a difference when I switch between hot and cold..but the right **** doesn't seem to do anything at all and isn't even lit up.

tcrote5516

The lighting issue is most likely totally unrelated. The accuator sounds like is the core issue. Sometimes they just get hung up with dust and debri especially if you rarely use the **** to work the divertor.

Birdman

I tried pulling the fuse 27 and seeing if that fixed anything but it didn't.

Taking apart the dash and I noticed this on the HVAC connector, is that red wire supposed to be like that? It's spliced into a brown wire.

Birdman

Ok so I found the actuator and pulled it out. Took it apart and even though one of the big gears is starting to get a crack, it isn't completely cracked through.. However when I hooked it back up to the car to watch what it does when I turn on the HVAC, it doesn't do anything at all. Doesn't respond one bit. No noises or anything.

Birdman

Bump...

65GGvert

I can't help with the actuator problem, but the passenger side **** should not change anything on the display. The driver's side will change the temp on the display and the passenger side will vary that side up and down slightly, but will not change anything on the display. Once you get the actuators working, you'll probably be ok on the other stuff.

Ls3 adventures

Same thing happened to me, I got the B0446 code and I tore apart the dash and got to the actuator, upon opening it I also noticed a cracked gear but I also hae a resistor that looked to be fried on the board, I went ahead and bought a new actuator and it fixed the problem.

Birdman

Was yours making any sort of movement or noise when you had it hooked up to the connector though? Mine doesn't do anything at all.. maybe it's a resistor like yours, but none of them look bad to me.

Ls3 adventures

Mine did absolutely nothing and made no noise at all, after I plugged it the new actuator it immediately started moving and re-indexing itself

Birdman

Thanks! That gives me hope.

Where did you buy yours from? I ordered from Rock Auto

Ls3 adventures

Yep that's where I got mine, I'm not sure if it will fix your problem but I hope it does!!

DGFORCE

I just reset/cleared my HVAC codes and it works perfect