Security light

[Rubberman]

On my daughters 2001 grand am SE with the 2.4l has the security bypass mod with the resistor. But now twice in several days the security light flashes and won’t start. I have to do the 10 wait for the relearn, if this has the bypass mod then why am I still have the security issue?

 

[melsg5]

Check the connections where the resistor was spliced and check the resistor with an ohm meter.
Also could be a bad BCM.

 

[Rubberman]

I checked the mod last time it happened back in Oct 2020. Happened then and hasn’t happened til yesterday. The resistor reads 2200ohms.

 

[melsg5]

You verified it's the correct resistance?
Have you considered replacing the lock cylinder?

______________________________

 

[Rubberman]

I used my multimeter to test it and I’ve replaced the lock cylinder last year.

 

[melsg5]

That leaves a possible BCM issue. A Tech 2 or similar device would be needed for diagnostics.