Sign in to follow this  
DeVille Fan

Code Question, '93 DeVille

Recommended Posts

On my '93 DeVille with the 4.9, if the car had problems that showed up on the Codes and the problems were fixed, will the Codes erased themselves automatically?  Or do they need to be erased manually?


Share this post

Link to post
Share on other sites

Pretty sure they may clear themselves after X starting cycles.

Did you use the HVAC controls to check for codes?

You can also use the HVAC controls to clear them also IIRC if they are still there or stored as past codes.

Edited by sonjaab

93 DeVille-13 Chevy Impala

72 GTO - 77 Triumph Bonneville

84 Z-28

Syracuse NY

Share this post

Link to post
Share on other sites

Right, I used the Off and Warmer Buttons to produce the Codes.  Some updated info since my last post. The battery needed charging and my electric cord would not reach, therefore I pulled the battery, charged it on the bench and re-installed it.  I decided to re-check the Codes after that and I got very few in comparison.  It seems like the battery dis-connect and re-connect automatically cleared them.  Although I read that you can clear them by the Buttons as you have indicated.  


Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.