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1995 CHEVROLET LUMINA
6 CYL • AUTOMATIC
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CAROL HA
  • MEMBER
  • 1 POST
my passkey 2 security system has locked my chevy lumina 1995 i bought the new key from dealer still no change
Dec 11, 2010 at 7:25 PM
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WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
The most common failure in these is the sensor in the ignition lock that reads the key pellet. That would mean replacing the ignition lock with a sensor included.



That sensor can be bypassed. You would need a digital ohmeter to measure the resistence of the pellet in the key. Now go to Radio Shack and buy a resister of the exact same value as the key pellet. Go to the base of the steering column and locate the two thin white wires that go up to the sensor. Cut the two wires and solder the resister between the two ends coming from the harness. This will permanently bypass the sensor but not the rest of the system so if the problem is elsewhere, this won't help. Make sure your measuring the original key.
Dec 14, 2010 at 7:13 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.