Your Passlock Module is acting up.
The ignition module on a 2002 Impala is located in part of the electrical system. In some cars, the module kept the car from starting. When the key was turned there would not be a clicking noise. The module works with the passlock system of the car.
Passlock sensor (Ignition housing) Or body control module fault
It does have the passlock system, what is the question?
No. It uses a Passlock system which is a magnet on the lock cylinder. If someone tries to force the cylinder it breaks the magnet and disables the vehicle.
I think suburban went to passlock in 98
how do you bypass passlock system
how do you bypass passlock on 2002 Chevy impala
The Passlock security system is the problem. Should be recalled. Go here http://newrockies.com/?ap_id=craigpeate for a module to bypass the system completely. The resistor workaround at the key isn't always the only problem. I tried it on my 99 Suburban and it didn't do any better with the resister bypass. You need to eliminate the entire security system. Buy the pro module for $179 plus shipping and save yourself the hassle of dealing with it ever again. Or you could go to the dealer and have them replace the entire system for over $1000. They will have to replace the key/tumbler/hall effect switch/wiring and EVO-Passlock module to get it right.
go to tube sound.com to disable passlock system for good. (just type in problem). type in tubesound.com/passlocksystem. have a good day!!
cut the yellow small wire from ign. switch in the column up by the switch. this is the passlock wire.
The thing that causes the PASSLOCK to activate is the chip, if you will. If the chip is bad, ar is unrecognizable to the system, the PASSLOCK will activate. Take it to a dealer asap. You can bypass the passlock by accessing the ignition, and cutting the yellow wire of a small 3 piece wire set that's on top of the ignition. cut the yellow small wire from ign. switch in the column up by the switch. this is the passlock wire.