pulling codes with paperclip - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Closed Thread
Thread Tools Search this Thread
Old 03-17-2008, 09:51 PM   #1
Senior Member
Posts like a 4 Banger
Thread Starter
Join Date: Mar 2008
Location: Fort Lauderdale, Florida
Posts: 100
Thanks: 0
Thanked 0 Times in 0 Posts
statusplease is on a distinguished road
Default pulling codes with paperclip

1987-1993 ECM Code Retrieval

Locate terminals "A" & "B", the 2 uppermost right-hand terminals, "A" is the one the right. You must use a short wire to ground out these terminals, or a hairclip, paperclip, or something similar. Short the terminals with the ignition off, then turn the ignition to "on" but do not start the car. The ECM will display "Code 12" by flashing the "Service Engine Soon" light indicating the system is working. Code 12 is simply one flash, followed by a brief pause, then two flashes in quick succession. This code will flash three times. If no codes are stored code 12 will continue to flash until the ground is removed from the terminal.
After flashing three times, the ECM will display any stored trouble codes. WHERE DOES IT DISPLAY THEM? IN THE DRIVER INFORMATION BOX?? Each code will be flashed three times then code 12 will be flashed again indicating display is completed.

I DONT SEE anything happening except service enine soon flashing over and over and over. Does that mean NO codes are present? And again, where WOULD THEY be displayed if thats the case
statusplease is offline  
Old 03-17-2008, 09:52 PM   #2
Junior Member
Join Date: Mar 2004
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
harofreak00 is on a distinguished road

it displays it in the dash (instrument cluster), the Service Engine Soon light will flash. What yours is doing is correct. Just count the times that it does it. Check this link for more help

harofreak00 is offline  
Old 03-17-2008, 10:08 PM   #3
Junior Member
Posts like a Ricer Type-R
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road

PLEASE continue in your other topic where you already brought this up. We need to keep all your problems in ONE topic or we can't keep up with all the suggestions and answers.
willwren is offline  
Closed Thread

Related Topics
Thread Thread Starter Forum Replies Last Post
GM OBD 1 Paperclip test Mike OBD-I Troubleshooting 0 02-26-2014 10:04 AM
why did my fans engage when i tried i paperclip test? dm0276260 1992-1999 8 06-10-2010 09:42 PM
Always carry a paperclip... ddalder Lounge 28 02-13-2008 08:42 PM
One Red Paperclip MOS95B Lounge 1 02-08-2006 08:48 PM
pulling codes from 95 bonnie , code reader error???? green95se 1992-1999 1 01-29-2004 09:10 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 02:25 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.