I am showing you how i was able to bypass the passlock 2 (i believe 2) security system in an 03 silverado. May work with other styles/years.
I have a base model 03 silverado and wanted to add a remote start system to it, and the passlock was the only thing holding me back. Now i moved away from the sunshine state to a colder area and loveeeeee my new remote start!
Here are some links to the videos i used to install my remote start, if you have basic knowledge of wireing and can follow a wireing diagram, there is no reason not to do the swap!
The videos are of SOMEONES ELSES CHANNEL, i do not take credit for them, just passing his links on to help support him as he supported me to finish my task.
Long version: [ Ссылка ]
Shorter: [ Ссылка ]

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