ignition sensor on 2007 Chevrolet Cobalt

i try to install a kill switch and i cut by mistake a red cable that is on a sensor atach to the ignition i think its for the key chip and i put it bak but now my car dosent wanna start ..?? someone can tell me what todoo??

Asked by for the 2007 Chevrolet Cobalt
scan anti theft codes and post so we can adv
How do I get does codes ???
scan by someone with the capablities to do so
1 more answer
Reset all sensors by disconnecting & reconnecting the battery.