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I am getting only this code, and the security light.
Both of my keys are a but worn. Not sure if this is related to the key or the ignition hardware.
Anybody get this code? Can it be tuned out using HP Tuners?
Thanks
No, the code cannot be tuned out. It is a BCM code, not a PCM code.
Helps if you post the correct code. I assume you meant a "B2721" .....not ......"B2127". If you do a search for B2721, you'll find plenty of reading, troubleshooting, etc.