Question about 1996 Pontiac Sunfire

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Fob lost and antitheft wont let me start pontiac sunfire

The computer chip is lost in the fob. the doors were locked with the key and now will not start. how do i bypass to start car

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Locate the immobilizer unit. This is a black box, usually situated under the dash close to the steering column. Trace the wires from the immobilizer to the vehicle's wiring harness, and where the original harness was cut, remove the immobilizer wires, and reconnect the original wires. Most fitters simply disable the ignition or starter circuit at the ignition lock wiring and this can easily be reversed.
A professional repair centre or auto electrician may only take less than half an hour for a job like this.

Posted on Nov 04, 2012

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Posted on Jan 02, 2017

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SOURCE: 2005 Pontiac SV6 Montana key fob unlocks doors but will not lock

For the sliding doors you need to clean the contacts, there are 6 or 8 on both sides, just wipe them clean as they are probably covered in oil/grease/grime.

Posted on Feb 14, 2009

  • 10 Answers

SOURCE: Key Fob Programming

key fobs have to be the same gm id number on back of fob and need to be programmed for your car by the dealer. its expensive . i had to have it done on my car. other fob i had could not be programmed to work, wrong gm id number

Posted on Apr 23, 2009

  • 5 Answers

SOURCE: I own a 2006 Pontiac Grand Prix and the key fob

i had the same thing happen to me i just replaced the battery the had it reprogarmed. by a pontiac dealership mechanic

Posted on Dec 10, 2009

MYHUMMER H2
  • 137 Answers

SOURCE: back doors do not lock or unlock with key fob or

Change the battery in the remote fob. Go to Best Buy or any place that sells watch size or similar batteries.

Posted on Feb 08, 2010

  • 4793 Answers

SOURCE: my key fob does not work for remote start and locking of doors

change the battery in the remote.the nearer the car you have to get the lower the battery power.

Posted on Feb 26, 2010

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Here is what i found for reprogramming your key fob remote

1. Be sure ignition is OFF.

2. Remove RADIO fuse from fuse box. Fuse will be number 17 and located at LH side of instrument panel.

3. Turn ignition from OFF to RUN 3 times within 5 seconds ending in the RUN position. Off is the position where you can remove your key and Run is the position shy of starting your vehicle (do not crank engine or start vehicle). Be sure you are turning the key from off to run quickly.

4. Doors will Lock and Unlock indicating entry into programming mode.

5. Hold Lock and Unlock at the same time on first remote for approximately 15 seconds. Vehicle will respond by locking and unlocking doors indicating successful programming.

6. Repeat step 5 for each additional remote including working remotes.

7. Switch ignition off. Replace RADIO fuse. Test all remotes.

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