1996 vette has new battery running fine and starting first go for the last two weeks however now igniton lights turn on but theres no crank when i turn the key to the start mode. Engine will start then stop by itself when you manually trip the starter. Any suggestions?
The security, antitheft or lock picture/icon is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterprets this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle. This link explains it pretty well.
http://www.diy-gm-security.com/
Sound like ignition switch on steering column above your feet. it switches back and forth when key is turned allowing start and run positions.
So when you bypass the control circuit your car starts. Items in control circuit to check out:
starter relay aka starter interrupt relay,
neutral safety switch and ignition switch.
Battery cables and wires to starter for resistance.
328 views
Usually answered in minutes!
×