Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

A/C not working; no DIC codes

Thread Tools
 
Search this Thread
 
Old Aug 7, 2007 | 09:19 PM
  #1  
Scoob's Avatar
Scoob
Thread Starter
Team Owner
15 Year Member
 
Joined: Mar 1999
Posts: 89,144
Likes: 3
From: Life's tough, wear a helmet.
Default A/C not working; no DIC codes

2003 Z06

When in AUTO mode the A/C button stays lit for about 1 second and then goes out and there is no cold air.

Defroster also does not blow cold air.

Checked the DIC: 99 - HVAC - no codes

Reply
Old Aug 7, 2007 | 09:28 PM
  #2  
KonaVette's Avatar
KonaVette
Le Mans Master
Supporting Lifetime Gold
20 Year Member
 
Joined: May 2002
Posts: 6,170
Likes: 1
From: Kona Hawaii
St. Jude Donor '03-'04-'05
Default

Originally Posted by Scoob
2003 Z06

When in AUTO mode the A/C button stays lit for about 1 second and then goes out and there is no cold air.

Defroster also does not blow cold air.

Checked the DIC: 99 - HVAC - no codes

I have a similiar problem...but mine will come back to life in about 15 min, the light stays on and if I turn the car off it takes again about 15 mins to fire up again.

Reply
Old Aug 8, 2007 | 09:36 AM
  #3  
Scoob's Avatar
Scoob
Thread Starter
Team Owner
15 Year Member
 
Joined: Mar 1999
Posts: 89,144
Likes: 3
From: Life's tough, wear a helmet.
Default

Reply
Old Aug 8, 2007 | 12:00 PM
  #4  
gpracer1's Avatar
gpracer1
Le Mans Master
15 Year Member
 
Joined: Feb 2006
Posts: 5,267
Likes: 40
From: Phoenix AZ
Default

What does your external temp read?
If its less than 35 or if it reads 69, that could be it.
Reply
Old Aug 8, 2007 | 12:02 PM
  #5  
Scoob's Avatar
Scoob
Thread Starter
Team Owner
15 Year Member
 
Joined: Mar 1999
Posts: 89,144
Likes: 3
From: Life's tough, wear a helmet.
Default

Originally Posted by gpracer1
What does your external temp read?
If its less than 35 or if it reads 69, that could be it.
It's summer here in NJ.

Yesterday was 95.

Last edited by Scoob; Aug 8, 2007 at 12:07 PM.
Reply
Old Aug 8, 2007 | 12:33 PM
  #6  
gpracer1's Avatar
gpracer1
Le Mans Master
15 Year Member
 
Joined: Feb 2006
Posts: 5,267
Likes: 40
From: Phoenix AZ
Default

I hear ya.
I was just asking because if the external temp sensor sees less than about 35 degrees, or if the sensor is unplugged or bad (reads 69) then the ac compressor wont come on. I know the internal sensor by the key has something to do with it also, but there is no reading to view.
Reply

Get notified of new replies

To A/C not working; no DIC codes





All times are GMT -4. The time now is 10:00 AM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE