Rear defrost/wiring problem - 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.

Thread Tools Search this Thread
Old 01-31-2005, 11:49 AM   #1
Junior Member
Thread Starter
Join Date: Jan 2005
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
jrmoen is on a distinguished road
Default Rear defrost/wiring problem

Hi Everyone,

I’m having a problem with my ’95 Bonneville and hope someone has an answer. The rear defrost button comes on by itself and kills the engine. When this happens I crawl under the dash and pull the fuse then the car would start back up. Well, lately this doesn’t seem to work. The other day I pulled the fuse and the light (on the r-def) wouldn’t go out for about 20 minutes, then the car started. The next day I was driving it and the RD light came on and the car died. The strange thing about this was I had the fuse pulled and the RD light still came on and once again I had to wait about 20 minutes till the car would start again.

What would cause the car to die when this comes on? Why would the RD light come on with the fuse pulled or come on by itself at all? I noticed the RD is connected to the hot/cold **** on the dash, could this be part of the problem?

Thanks for the help.
JR Moen
jrmoen is offline   Reply With Quote
Old 01-31-2005, 12:42 PM   #2
Senior Member
Certified Car Nut
Join Date: Jul 2003
Location: Robbinsdale, MN
Posts: 15,408
Thanks: 0
Thanked 0 Times in 0 Posts
MOS95B is on a distinguished road

Sounds to me like either a short somewhere, or a failing alternator.

The short is for obvious reasons. The failing alt is based on my belief that the sudden draw is pulling more than the alt can handle and keep the engine running.
MOS95B is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Rear defrost problem 98bonniese 1992-1999 2 01-25-2010 03:16 AM
Rear window defrost+command start SSEimatt93 Everything Electrical & Electronic 1 10-03-2005 03:59 PM
Rear Window Defrost / Defog Merlin 91/97 1987-1991 2 09-09-2005 09:08 AM
rear defrost L27Buick 1992-1999 6 03-01-2005 09:48 PM
rear defrost cuts out its840 Everything Electrical & Electronic 11 12-21-2004 01:54 AM

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 04:42 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 and affiliated sites.