Security System Failure

Reply Subscribe

Thread Tools

Search this Thread

Dec 30, 2013 | 05:40 PM

Michael1950

Thread Starter

Cruising

Joined: Aug 2008

Posts: 11

Likes: 0

Security System Failure

I have a 2004 C5 with 18,000 miles. I am having trouble starting it on the first start. The gauges blink off and on. If I turn the key to the off position after the first start attempt it starts and runs fine. I believe my security system has a failure but it's not displaying as a failure code. Any thoughts on this would be most welcomed.

Dec 30, 2013 | 05:44 PM

skydiven4fun

Melting Slicks

Joined: Dec 2011

Posts: 2,234

Likes: 64

From: Gulf Coast Mississippi

St. Jude Donor '13-'14-'15

Just curious, why are you thinking its a security issue ?

Dec 30, 2013 | 11:05 PM

El original

Melting Slicks

Joined: Nov 2008

Posts: 3,146

Likes: 203

From: Edmonton Alberta, Canada

Could be any number of things, check some of the simple stuff like air filter, fuel filter and run some fuel/injector cleaner.

Dec 31, 2013 | 05:11 AM

Michael1950

Thread Starter

Cruising

Joined: Aug 2008

Posts: 11

Likes: 0

Quote:

Originally Posted by 8VETTE7

If it is a security system failure there will be a code stored but not displayed.

Further if it is a security system failure, when you turn the key to the on position the security light on the dash will stay illuminated. (don't need to try to crank the engine just turn the key to the "ON" position)

You can pull the codes yourself with the following procedure:

http://www.c5forum.com/ayc/dtcdic.php

OR

Pull your codes and post them here including the H or C or HC that follow the 5 character code....

Thank you great info

Dec 31, 2013 | 05:11 AM

Michael1950

Thread Starter

Cruising

Joined: Aug 2008

Posts: 11

Likes: 0

Quote:

Originally Posted by El original

Could be any number of things, check some of the simple stuff like air filter, fuel filter and run some fuel/injector cleaner.

Thank you

Dec 31, 2013 | 11:45 AM

dadaroo

Le Mans Master

Joined: Mar 2011

Posts: 6,835

Likes: 301

From: Columbia SC

My car has done the same thing 2 times. With 60K on it I plan to replace the ignition switch since they are prone to issues. The switch is not expensive and pretty easy to replace. You still retain/reuse the actual key cylinder. If you need more info on this you can Google for info or let me know if need more info/help. With your low mileage this may not be your issue though. Just something else to consider.

Dec 31, 2013 | 12:06 PM

jcgunn

Melting Slicks

Joined: Mar 2004

Posts: 2,384

Likes: 403

From: Horseshoe Bend ID

try your other key, could be the security pellet

Dec 31, 2013 | 05:12 PM

Michael1950

Thread Starter

Cruising

Joined: Aug 2008

Posts: 11

Likes: 0

Security System Failure

Thank you to all that responded. What I thought was a security system failure turned out to be a loose connection to the starter. I had the injectors cleaned and checked all of the grounds. Running great again!