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Old 07-23-2010, 11:56 PM   #6
thephantom1492
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Re: 1999 GrandAm 3.4L Won't Start

if at run position the security is on, then it just tell you that the security part is working and has not been tripped. think of the steady on as a lamp test.

If it was blinking then the security got tripped.

A security bypass is only possible when the security work atleast partally.

There is 2 ways to bypass it, the most common is to simply disconnect the passlock module. This work only when the key relearn has worked. So you need to be in non-locked up mode, then disconnect while the engine run. It will be "bypassed" until your battery run flat or you disconnect it. A better solution is to cut the wires and put a 470 to 10000 ohms there, then redo a key relearn procedure. This will fool the BCM into thinking that the key is always there.

As for why it won't start, you should try to borrow a code reader. There is lots of things that could have went wrong...
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