car won't start on 2001 Chevrolet Monte Carlo

ok i have a 01 monte carlo ss, and the car won't start at all, when i putr my key in and turn, i get nothing from the dash, all i get is radio and domelights n whatnot, the only way i kan get it to start is by unplugging the middle wire from the BCM then plugging it back and it will work but not for long, i had an aftermarket alarm on it, equip with autostart killswitch etc. i got it taken off when i started having problems with it starting and i was told i needed a new bcm. . . paid for it, still wont start, then i was told i need a new dash(instrument cluster) and it had to be prgrammed, put new dash in, no start, but before the cr gave me problems, i noticed it constantly said SECURITY and i've been gettin advice saying that its my passlock sensor and ignition cylinder will b swapped and programmed with new keys, true? if so, how much will it cost?

by in Los Angeles, CA on September 23, 2009
1 answer
ANSWER by on September 23, 2009
The most common cause for the SECURITY light to illuminate on your 2001 Chevrolet Monte Carlo would be a faulty passlock sensor which is part of the ignition lock cylinder. It is to bad it took so long for you to find that out. The labor to replace your ignition lock cylinder should be in the $140 - $180 range plus the cost of the part. Make sure you have the ignition lock cylinder replaced - not the ignition switch!
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