Heater Not Working
Melting Slicks
Joined: Oct 2007
Posts: 2,375
Likes: 426
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Pull your dash DTC codes and see if they show us anything.
Mr. Sam
Pro
Joined: Oct 2015
Posts: 651
Likes: 45
From: Raleigh area, NC
My ac has been working but todays first attempt at heat is also coming out cold.
New to DIC's but only current showed HVAC 0441.
Kind of smells like heat is on but seems to be cold from defrost, vent, floors....no leaks that I can see.
Should I try the fuse 27 reset?
New to DIC's but only current showed HVAC 0441.
Kind of smells like heat is on but seems to be cold from defrost, vent, floors....no leaks that I can see.
Should I try the fuse 27 reset?
Thread Starter
Safety Car
Joined: Feb 2006
Posts: 4,542
Likes: 385
From: Fort Worth Texas
I pulled both of my fuses, and cleared codes. Now i have heat coming out.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
B0441 is the left actuator out of range. Do this first:
Re-Calibrating Actuators
Use the following steps to perform the calibration update:
1. Turn OFF the ignition.
2. Remove the battery positive voltage circuit fuse of the HVAC Control Module (fuse #27).
Important
The module memory will not clear if the battery positive voltage circuit fuse is installed in less than 60 seconds.
3. Wait 60 seconds.
4. Install the fuse.
Mr. Sam
Re-Calibrating Actuators
Use the following steps to perform the calibration update:
1. Turn OFF the ignition.
2. Remove the battery positive voltage circuit fuse of the HVAC Control Module (fuse #27).
Important
The module memory will not clear if the battery positive voltage circuit fuse is installed in less than 60 seconds.
3. Wait 60 seconds.
4. Install the fuse.
Mr. Sam
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Thread Starter
Safety Car
Joined: Feb 2006
Posts: 4,542
Likes: 385
From: Fort Worth Texas
Codes were p0361 and p0441 If I remember correctly. When I drove my car yesterday, I had not heat again. I cleared those codes, and got full heat. I am wondering if tapping the cream color wire on the HVAC plug for audio illumination is the culprit?
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Yeah, I missed that info. Why when you have GM accessory feeds for power in the foot well made just for that kind of thing?
I doubt that is the issue but if HVAC does not work with the radio illumination OFF it is not the issue.
I can post the info on the 3 foot well power feeds when I get home.
Mr. Sam
I doubt that is the issue but if HVAC does not work with the radio illumination OFF it is not the issue.
I can post the info on the 3 foot well power feeds when I get home.
Mr. Sam
Pro
Joined: Oct 2015
Posts: 651
Likes: 45
From: Raleigh area, NC
Yikes $600 actuators, I am lucky not too cold in the winter....glad my ac is functioning.
Do you need to pull the battery neg. also to reset or just the fuse?
I did the fuse for the 0441 no change.
Do you need to pull the battery neg. also to reset or just the fuse?
I did the fuse for the 0441 no change.
Thread Starter
Safety Car
Joined: Feb 2006
Posts: 4,542
Likes: 385
From: Fort Worth Texas
Thread Starter
Safety Car
Joined: Feb 2006
Posts: 4,542
Likes: 385
From: Fort Worth Texas
Yeah, I missed that info. Why when you have GM accessory feeds for power in the foot well made just for that kind of thing?
I doubt that is the issue but if HVAC does not work with the radio illumination OFF it is not the issue.
I can post the info on the 3 foot well power feeds when I get home.
Mr. Sam
I doubt that is the issue but if HVAC does not work with the radio illumination OFF it is not the issue.
I can post the info on the 3 foot well power feeds when I get home.
Mr. Sam
Melting Slicks
Joined: Oct 2007
Posts: 2,375
Likes: 426
Price is not the problem... pulling the dash is the problem. Even then, what is two days out of your life? Time spent working on your Corvette is not subtracted from your life span.
Pro
Joined: Oct 2015
Posts: 651
Likes: 45
From: Raleigh area, NC
I just pulled part of the dash apart to swap wiper switch....that 14 year old plastic does not like to flex....and a 3 foot long wiper harness should of given me a hint would be a PITA.
Anyone have any good links to dash removal? I found one on another site but seemed inaccurate.
After the wiper switch and motor fiasco I am extremely discourage to do stereo aux or swap now, and my left window makes some crunching on the way down...
Anyone have any good links to dash removal? I found one on another site but seemed inaccurate.
After the wiper switch and motor fiasco I am extremely discourage to do stereo aux or swap now, and my left window makes some crunching on the way down...
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
