I have a 1997 caviler with a 2.2 engine i have changed the ign switch and the lock cylinder . security still comes on how do i by pass this system .

 

Is it a pellet key? If so, you have to know the resistance, or the pass lock number 1-15, these reflect the resistance of the chip. If you don't know, and got a blank key, you'll have to have a pellet key cut, and do a relearn. That's with key on, no crank with the new key for 30 mnutes. Turn ignigtion to off, then start. Hopefully that will fix it.

 

If you have the old key, either read the resistance on it with a DVOM, or take it to a locksmith to have it read. With the blank that came with the new switch, have that key cut with that number.

 

the key has no pellet

 

system maybe Gen 2

 

The original key dosen't?