I would like to better understand what the installer is telling me about my alarm system in a 2001 GMC Sierra. First off I was looking at a viper remote start with a two way pager and that is what this is based off of. What I would like to know is; where do the transponder bypass modules or passkey interface modules tie into the whole mix and what is there function? Also, how do they help speed up the installation time? If you have any good links that would be great too!
They tie into the alarm system as a way of communication between the alarm's remote starter and the cars starting system. If you weren't getting a remote starter installed the bypass wouldnt be needed. But since you are the remote starter needs to bypass the factory immobilizer inorder for the car to remote start.
They speed up installation time since they tie into the cars CPU and thus require less wiring into the other of the cars systems
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