SaturnFans.com
saturnfans.com - classifieds - forums - webmail


Go Back   SaturnFans.com Forums > Models > Saturn L-Series > L-Series Tech

Reply
 
Thread Tools Display Modes
Old 09-16-2009, 11:02 AM   #1
jonus311
New Member
jonus311 is on a distinguished road
 
Join Date: Jan 2009
Posts: 5
Default 2004 L300 V4 antitheft lights randomly, no start

Hello all, thanks for viewing this thread, this website has helped me out in the past.

My wife tried starting the car yesterday to go to work and the antitheft light was blinking and the car wouldn't start. (from my understanding it is because the antitheft disables the fuel pump).
After I drove my wife to work in my other car, I returned home and was able to start the car with the second set of keys. Assuming that the problem was worn down keys, I told her just to use the 2nd key.
The next night as my wife got in the car for work the antitheft light blinked again and car wouldn't start.
I thought that since both keys move the ignition it must be an electrical/sensor problem. Not a physical problem with the tumbler.

The car does have a history of having the antitheft light come on and stay on (i.e. solid light) while the car is in operation. We have had the blinking light come on while trying to start but after a short while you can start the car. Now it is getting ridiculous.

I have been reviewing the website and noticed that people keep speaking of the BCM. Could it be something else? Could it be the "passlock"? Does anyone have any troubleshooting steps I can take before I have to take the car to the dealer?

Please help!
jonus311 is offline   Reply With Quote
SaturnFans.com Sponsored Links
Old 09-16-2009, 11:53 AM   #2
fdryer
Super Member
fdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond repute
 
fdryer's Avatar
 
Join Date: Jan 2006
Location: NYC
Posts: 44,541
 

2003 L-Series 3.0L Sedan
Default Re: 2004 L300 V4 antitheft lights randomly, no start

If you have the owner's manual, review the section on Passlock's anti-theft system. Once triggered and flashing it will take 10-minutes with the ignition left in the ON position to time out before the car can be started, cycling the ignition key off before trying again. Most/all thieves have better things to do than to wait around for this time out to pass before trying to steal our cars. The fuel pump is disabled since the EFI system cannot run the engine without fuel pressure; the body control module (BCM) is another mini-computer that contains the factory Passlock anti-theft program and tells the ECM (engine computer) whether to run or not. The random triggering of the theft deterrent system may be due to the ignition switch assembly as part of the theft deterrent circuitry surrounds the ignition switch using position sensors or the beginnings of a bcm failure. The temporary remedy (if the bcm begins failing) seems to be resetting the electronics with disconnecting the battery negative cable for 5-minutes.
...
VCX NANO
fdryer is offline   Reply With Quote
Reply

Bookmarks

Tags
antitheft, no start, random light


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
L300 2004 - Lights Flickering - Have some help Duvell L-Series General 4 12-07-2010 01:12 PM
check engine light and antitheft light 2004 L300 jonus311 L-Series Tech 2 01-31-2009 09:55 AM
2004 L300 Won't start - please help mjvucf L-Series Tech 3 12-15-2008 03:35 PM
2004 L300 lights flickering. What to do? hoppy L-Series Tech 19 04-19-2005 06:04 AM
2004 L300 Flickering lights solved. mcgyver L-Series General 29 09-21-2004 02:07 AM


All times are GMT -4. The time now is 07:03 PM.

Advanced Forum Search | Advanced Photo Search


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
SaturnFans.com. The Saturn Enthusiasts Site.