OBD1.5 Code clearing - 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.

Reply
 
 
 
Thread Tools Search this Thread
Old 03-03-2010, 04:51 PM   #1
Junior Member
Thread Starter
 
Join Date: Oct 2008
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
nightstick is on a distinguished road
Default OBD1.5 Code clearing

When driving down the road my car will come out of overdrive into third. With my code reader I can erase the codes and it goes back into overdrive. I've got over 250k on this car and don't feel like messing with the tranny at this point. It'* acceptable to me to just erase the codes and live with it. Now the reason for writing this is that I'm looking for an easier way of erasing the codes while going down the road. My code reader is not backlit and impossible to see at night, along with being hard to handle one handed. Anyone out there built any kind of device that can be used to reset the codes. I don't need to read them, I have a reader for that.

Thanks

1994 Bonneville SSE
nightstick is offline   Reply With Quote
Old 03-03-2010, 06:04 PM   #2
Senior Administrator


Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,638
Thanked 991 Times in 770 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Uhhh, nope. Still need to use the scanner to clear the codes. If we may ask, what is the code giving you the trouble?
Mike is offline   Reply With Quote
Old 03-04-2010, 08:57 AM   #3
Junior Member
Thread Starter
 
Join Date: Oct 2008
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
nightstick is on a distinguished road
Default

Quote:
Originally Posted by Mike1995 View Post
Uhhh, nope. Still need to use the scanner to clear the codes. If we may ask, what is the code giving you the trouble?
I should have put that in there. The code is 740 TCC Circuit malfunction. When I clear the code while driving down the road it immediately goes into OD. Never know when it'* going to shift down, sometimes within minutes and I clear it again. And sometimes I'm good all day. I would just like to know what the code reader is sending to clear the codes so I can try to duplicate it. I wish it was as easy as shorting a pin.

94 Bonneville SSE
nightstick is offline   Reply With Quote
Old 03-04-2010, 07:00 PM   #4
Senior Administrator


Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,638
Thanked 991 Times in 770 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

No, its not as easy as shorting 2 pins. It'* all software based. Basically, the scanner sends a command to your PCM to clear all stored fault codes. We'll look more into your actual code...
Mike is offline   Reply With Quote
Old 03-04-2010, 10:26 PM   #5
Senior Member
Certified GM nut
 
SignOfZeta's Avatar
 
Join Date: Mar 2005
Location: New Milford, CT
Posts: 2,284
Thanked 16 Times in 13 Posts
SignOfZeta has a spectacular aura aboutSignOfZeta has a spectacular aura about
Default

It'* not 100% exact, but you may want to have a look at the troubleshooting steps for the OBD-II flavor of that code.

That won't clear your code, but it may help stop it altogether. Good luck.
SignOfZeta is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2000 Bonneville code clearing CJ Rhodes 2000-2005 4 02-28-2012 02:36 AM
03 bonneville wont start after clearing check engine code jc95z Pontiac 13 11-13-2011 08:25 PM
1991 SSE - code 28 code 39 code 42 - losing sleep labonnita 1987-1991 9 12-26-2009 10:58 PM
code history clearing.. [NEW CODEx2] Peterg22000 1992-1999 18 12-20-2007 01:08 AM
OBD1 or 2?? Rosco the Iroc Lounge 1 07-10-2004 12:14 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 11:33 AM.


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.