Sercurity light illiminated but car still works
08-28-2014, 11:57 PM
#1
Sercurity light illiminated but car still works So I am getting the security light illuminated while the car is operating and from what I have read this is an early sign of a failing BCM? Am I right? If so is there any way to fix it? The previous owner of my car broke one of the vats cables to the key cylinder and then bypassed the vats using a resistor. When I was tearing down the steering column I fixed the cable and since sometimes the resistor would have poor connection I just removed the resistor and re-enabled the vats and its been working perfectly fine. Any Idea on how long I have until something happens? This is my DD and it would suck getting stuck somewhere.
08-31-2014, 02:46 PM
#2
I have had a similar issue for quite a long time as well.
Ive been told by many people that mine is due to the ignition cylinder going bad. Already had to fix a VATS wire in the column, they are common to break over time. Maybe it broke again, I dunno, I disabled VATS with HP tuners so car would run.
Rarely, the car wont even try to start when I turn the key and have to auto start it. I work at a chevy dealership and the electrical techs all say I need a new cylinder and key. My key is worn to **** and the cylinder is real loose.
Good news is the parts are less than $100. bad news is labor sucks but im fixing it myself this month.
Ive been told by many people that mine is due to the ignition cylinder going bad. Already had to fix a VATS wire in the column, they are common to break over time. Maybe it broke again, I dunno, I disabled VATS with HP tuners so car would run.
Rarely, the car wont even try to start when I turn the key and have to auto start it. I work at a chevy dealership and the electrical techs all say I need a new cylinder and key. My key is worn to **** and the cylinder is real loose.
Good news is the parts are less than $100. bad news is labor sucks but im fixing it myself this month.
08-31-2014, 05:48 PM
#3
I also had problems and had to replace the ignition switch because the wires broke. I had to use the bypass resistor before I replaced the switch. The security light was blinking for quite some time.After I replaced the ignition switch I had to re-flash the bcm.
You might want to hide a bypass resistor in your car just in case. That's what I did for a while.I also had to replace the bcm one time.
It could last 20 years or 5 minutes.you just never know.
You might want to hide a bypass resistor in your car just in case. That's what I did for a while.I also had to replace the bcm one time.
It could last 20 years or 5 minutes.you just never know.
Last edited by transwiz; 08-31-2014 at 05:54 PM.
08-31-2014, 11:44 PM
#4
Thanks for the reply guys 
I do have the resistor for when the VATS was disabled before so bypassing it again would be easy. I just hope its not more than just the cable or resistor. I might later on just swap out the entire column with the BCM and keys as my steering column tilt slop is coming back 
I do have the resistor for when the VATS was disabled before so bypassing it again would be easy. I just hope its not more than just the cable or resistor. I might later on just swap out the entire column with the BCM and keys as my steering column tilt slop is coming back