My check engine light came on and got the code p1682 for a faulty engine switch and when I turn the car off and take the key it it stays on for about 1-5 minutes

 

Maybe this will help you.
I got this from a code site-->P1682 Chevrolet Ignition 1 Switch Circuit 2 OBDII Engine Light Trouble Code | Engine-Codes.com
Possible causes
- Faulty ignition switch
- Ignition Switch harness is open or shorted
- Ignition Switch circuit poor electrical connection
- Faulty Engine Control Module (ECM)


When is the code detected?


The ECM has detected a voltage difference between two circuits
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible no crank or start
P1682 Chevrolet Description
There are 2 ignition 1 voltage circuits supplied to the Engine Control Module (ECM). The first ignition circuit is provided by the powertrain relay, through a fuse. This ignition 1 voltage circuit supplies power to all the internal ECM circuits associated with the throttle actuator control (TAC) operation. The second ignition 1 voltage circuit is supplied by the run/crank relay through a fuse, and is used to power the remaining internal ECM circuits. If the ECM detects a voltage difference between the 2 ignition 1 voltage circuits, DTC P1682 will set.

 

Yeah I got it from there also, but I replaced the fuses and it's still doing the same thing

 

Hopefully someone else who has had this issue will respond.
Sorry I could not help more

 

Looks like your buying a new ignition switch. If only you were Turbo, this could be a good thing as it is mimicking a turbo timer...

 

Yeah, that's what my buddy and I were saying. But I don't think it's good with a non turbo lol

 

Was this issue resolved ? If so what was it , having the same problem with my 06 SS.