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

ALDL connectvity problem

Thread Tools
 
Search this Thread
 
Old Aug 31, 2011 | 07:49 PM
  #1  
westportisland@hughe's Avatar
westportisland@hughe
Thread Starter
Cruising
 
Joined: May 2011
Posts: 12
Likes: 0
Default ALDL connectvity problem

I recently tried to scan the codes on my 1990 Coupe with an OBD1 scan tool. The error message was that the scanner was not connected to the car. I plugged it in, turned key on but not started the car and initiated the sequence. The scanner would attempt to connect, but could not. I checked the fuses on the main fuse panel, all seemed OK. Previously I have pulled codes for the ABS and the SIR using the paper clip method, and the ALDL seemed to work properly for those pins. Can anyone provide any insight?
Reply
Old Aug 31, 2011 | 07:53 PM
  #2  
Blue 92's Avatar
Blue 92
Team Owner
Supporting Lifetime Gold
15 Year Member
 
Joined: May 1999
Posts: 22,830
Likes: 13
From: Columbus Ohio
CI 3-4, 8-9-10 Veteran
St. Jude Donor '06-'08-'10
Default

Originally Posted by westportisland@hughe
Previously I have pulled codes for the ABS and the SIR using the paper clip method
You might want to use a mirror and a flashlight to verify that you did not accidentally bend one of the connectors so that isn't making contact with the code reader plug.

I did that with my 92 using the paper clip method and had to straighten one out for an actual code reader plug to work.
Reply
Old Aug 31, 2011 | 07:57 PM
  #3  
westportisland@hughe's Avatar
westportisland@hughe
Thread Starter
Cruising
 
Joined: May 2011
Posts: 12
Likes: 0
Default

Thanks. I'll check that.
Reply
Old Sep 1, 2011 | 07:52 AM
  #4  
bjankuski's Avatar
bjankuski
Safety Car
20 Year Member
Photogenic
Liked
Top Answer: 1
 
Joined: Sep 2001
Posts: 4,165
Likes: 555
From: Glenbeulah Wi
Default

You might want to try again with the engine running before you connect and see if it works.
Reply

Get notified of new replies

To ALDL connectvity problem





All times are GMT -4. The time now is 07:35 AM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE