C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Accessing Stored Codes?

Thread Tools
 
Search this Thread
 
Old Mar 21, 2005 | 09:49 PM
  #1  
46snake's Avatar
46snake
Thread Starter
Advanced
 
Joined: Dec 2004
Posts: 66
Likes: 0
From: Glen Rock PA.
Default Accessing Stored Codes?

Ok here we go again, Jake told me how to access my stored codes by useing a paper clip on my computor relay but before i could print it out it was going, so what terminals do i use and what do the flashes mean, How many and how do you count them, Thanks .......
Reply
Old Mar 22, 2005 | 12:37 AM
  #2  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default

The flashes are counting like this:

<flash> pause <flash> <flash> longer pause
<flash> pause <flash> <flash> longer pause
<flash> pause <flash> <flash> longer pause

then the code.

A code 43 would look like this:

<flash><flash><flash><flash> pause <flash><flash> <flash> longer pause
<flash><flash><flash><flash> pause <flash><flash> <flash> longer pause
<flash><flash><flash><flash> pause <flash><flash> <flash> longer pause
<flash><flash><flash><flash> pause <flash><flash> <flash> longer pause
<flash><flash><flash><flash> pause <flash><flash> <flash> longer pause

Five times.

If there is another code, then you will get that. if not, a 12, again. And the cycle repeats itself.

The 12 indicates the ECM is active and working.
Reply
Old Mar 22, 2005 | 12:45 AM
  #3  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

Jumper pins A & B (upper two) of the ALDL, turn the key On and count the flashes and jot down the numbers till you see the 2nd set of 12s.

Note that each code will be two digits like 22, 32, etc.
Reply
Old Mar 22, 2005 | 02:14 AM
  #4  
PierEagle's Avatar
PierEagle
Drifting
 
Joined: Feb 2005
Posts: 1,592
Likes: 3
From: St Louis MO
Default

ALDL terminals are: F E D C B A
...........................G...........M

Ground A & B. With key on, 12 will flash 3 times, then each trouble code stored will flash 3 times each. After all stored trouble codes are shown, 12 will flash 3 times again. Before any repair is made, disconnect battery. This also serves to clear any stored codes.

Last edited by PierEagle; Mar 22, 2005 at 02:17 AM.
Reply
Old Mar 22, 2005 | 06:07 AM
  #5  
Steel Blue 91's Avatar
Steel Blue 91
Le Mans Master
15 Year Member
Veteran: Air Force
 
Joined: Jul 2002
Posts: 5,818
Likes: 2
From: Alive and well in Burlington NC
Default

Here's a shot of your ALDL:



Jump A and B and count the flashes like bogus stated. To be on the safe side, make sure the ignition is off when you jump the terminals then rotate to the on position (don't start). Turn ignition off before you remove the the jumper.
Reply
Old Mar 28, 2005 | 07:19 PM
  #6  
shottel's Avatar
shottel
Intermediate
 
Joined: Jun 2003
Posts: 39
Likes: 0
From: tomball tx
Default

i have a 95 (OBD1 with OBDII connector). What pins do i jump to read the codes?
Reply
Old Mar 28, 2005 | 10:22 PM
  #7  
Sam Lam's Avatar
Sam Lam
Melting Slicks
20 Year Member
 
Joined: Apr 2002
Posts: 2,118
Likes: 0
From: St. Charles, MO Route 66 Corvette Club
Default

"Ok here we go again, Jake told me how to access my stored codes by useing a paper clip on my computor relay but before i could print it out it was going, so what terminals do i use and what do the flashes mean, How many and how do you count them, Thanks ......."

Hey Snake: Go to Auto Zone and ask for the FREE metal key that goes into the ALDL connector and use the paper clip to hold paper sheets together! The key is free and easy to use!
SAM
Reply
Old Mar 29, 2005 | 01:43 PM
  #8  
Steel Blue 91's Avatar
Steel Blue 91
Le Mans Master
15 Year Member
Veteran: Air Force
 
Joined: Jul 2002
Posts: 5,818
Likes: 2
From: Alive and well in Burlington NC
Default

Originally Posted by shottel
i have a 95 (OBD1 with OBDII connector). What pins do i jump to read the codes?
Not sure on this one. Perhaps someone else can chime in......
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Mar 29, 2005 | 04:13 PM
  #9  
Lone Ranger's Avatar
Lone Ranger
Le Mans Master
10 Year Member
 
Joined: Feb 2002
Posts: 7,858
Likes: 2
Default

Originally Posted by shottel
i have a 95 (OBD1 with OBDII connector). What pins do i jump to read the codes?
#4 and #12, as follows, if your 95 has the 16 pin OBD2 type ALDL:



Reply

Get notified of new replies

To Accessing Stored Codes?





All times are GMT -4. The time now is 07:46 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE