Pulling codes for dumbies
Thread Starter
Junior Member
Joined: Apr 2004
Posts: 63
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From: West Virginia
Car: 1987 GTA
Engine: 350 TPI
Transmission: 700R4
Pulling codes for dumbies
How do I go about this, tried to search but I couldn't find just what I needed. Is there a tech page or tech post I'm missing?
Any and all help welcomed.
Any and all help welcomed. TGO Supporter
Joined: Sep 2003
Posts: 6,127
Likes: 10
From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
Just jumper pins "A" & "B" of the ALDL (Assembly Line Diagnostic Link) with a paper clip and turn the key to the "ON" position with the engine off. The first fans will come on and run which is a normal occurrance. The first code to flash will be 12, this also is a normal code. It will flash three times like this: FLASH...FLASH FLASH. After that, any other codes stored will flash three times each. After all codes have flashed, the cycle will repeat itself. After you have retrieved all stored codes, turn the key off and remove the paper clip.
TGO Supporter
Joined: Sep 2003
Posts: 6,127
Likes: 10
From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
Originally posted by badapple
Where do I find the ALDL? Right under the dash?
And where will I see the flash?
For dumbies remember
Where do I find the ALDL? Right under the dash?
And where will I see the flash?
For dumbies remember
Do not be alarmed if the following picture does not exactly match the set-up in your car. It is only a reasonable facisimile used strictly for training purposes only. Thread Starter
Junior Member
Joined: Apr 2004
Posts: 63
Likes: 0
From: West Virginia
Car: 1987 GTA
Engine: 350 TPI
Transmission: 700R4
Thank ya lol, diagram is a tad off considering I have digital dash but yea I get the idea 
Couldnt get much more for dumbies huh, figured I'd be safe and ask.
Couldnt get much more for dumbies huh, figured I'd be safe and ask.
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