Question about 1998 Pontiac Sunfire

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Anti theft I bought a 98 sunfire that had some burnt wires for the radio. I was very careful in fixing those.then found more Now the anti theft will not let me start the car.Is there a way to over ride the anti theft?? I would really like to drive this darn thing

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  • jdmack Jun 28, 2008

    98 Sunfire The anti theft works off ignition switch the wires from the switch runs to the instrument cluster.To reset it you turn the key and just bump the starter and then let set for 10 min. repeat till the anti theft lite stops blinking,could take 3 or 4 times.

  • jdmack Jul 01, 2008

    98 sunfire anti theft is link to the instrument cluster[ speedometer] and the ignition switch. All you need to do is turn key on and bump the starter and then the key on for 10 min. and if the antitheft lite is still blinking try it again. My take afew trys ,but it worked for me.

  • chevychic73 Aug 04, 2008

    My problem is the same WILL NOT START. - except mine is a 98 grand prix.
    I know this is going to sound SO stupid, but- what do you guys mean by "bump" the starter? Do you mean turn the key like I'm trying to start it and hold it for a second? Or actually open the hood and lightly strike the starter? I assume you mean the first one, but I just want to make sure.

    I was told by a few people that my issue was caused by this: We drove to the creek to swim, and I locked the car with the keyless. Then my keys somehow got wet while I was there, and then when the keyless didn't work I used the key to unlock. People are telling me that the anti theft is acting up because supposedly if you lock with a key, you should unlock with a key, and if you lock with keyless you UNLOCK with keyless. I have a friend with the same car though (except hers is a 2003), and hers isn't like that, so why would mine be?
    Anyway I'm stuck hotwiring it every time, so if you could give me some advice I'd really appreciate it!
    Thank you!
    SHelby


  • Anonymous Aug 13, 2008

    i have the same problem the only diference is that the light doesn`t blink it keeps on

  • bigblockvali Sep 03, 2008

    I also have a 98 sun fire and the light stays on. It happened after the battery was disconnected to change the starter and reconnected. I don't know if it matters but the car has a command start.

  • guypeddle139 Apr 08, 2009

    i have a 2000 sunfire and i want to disable the anti theft system when i turn the key to the run position and wait for 10 to 15 mins it does not turn off the anti theft light



    PLEASE HELP ME

  • Anonymous Mar 19, 2014

    Changed the battery on a 98 Corolla and now I can't get the anti theft to go off

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  • 2 Answers

The person who came up with this system should be shot, dead,, for being stupid,,,, this system sucks,,, ,

Posted on Oct 01, 2012

6 Suggested Answers

emissionwiz
  • 60565 Answers

SOURCE: car starts run's 3 seconds shuts down

Your car is equipped with a system called PASSKEY standard on all GM cars and light trucks, try the following procedure to reset the system, the battery being dead will trigger the system.

PASSKEY LOCKOUT RESET GM CARS 1999 UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the passlock system to recognize your key.

Posted on Mar 30, 2009

  • 176 Answers

SOURCE: anti theft code P1629

try leaving the key on for 5 to 10 minutes
for the BCM (body control module) to relearn

Posted on Jun 30, 2009

johnny5846
  • 379 Answers

SOURCE: anti theft

hi , not necessarily , did you replace the key and tumbler , or the ignition switch (electrical part) ? there is a password relearn procedure , attempt to start the vehicle , leave ignition on until THEFT SYSTEM indicator turns off , (approximetly 10 minutes) , turn ignition switch off , attempt to start vehicle , if vehicle starts , password has been learned ... if password does not relearn , i can post some diagnostic procedures .

J5

Posted on Jan 21, 2009

  • 65 Answers

SOURCE: I need the unlock codes for a anti theft delco radio 1991 olds 98

have you vin number ready. the dealer always have factory code number

Posted on Feb 25, 2009

SOURCE: How to remove or bypass the factory installed anti theft vehicle immobilizer.

I'm going to assume this has the VATS system with the pellet in the key. You need to know the correct resistant of the factory pellet and bypass the system using that value. A quick google search will result in many articles on how to bypass the VATS system, as it's required when installing a remote start system in most late 80s-mid 90s GM vehicles.

Posted on May 10, 2009

  • 19 Answers

SOURCE: 1999 Pontiac Sunfire ignition lock cylinder

try turning the ignition on try to start then without shutting key off wait 10 mins then shut key off then back on but do not try starting leave on for ten mins then back off turn key back on to run but do not try starting it wait ten mins then if it reset it should crank over and start if not repeat all steps again

Posted on Sep 19, 2009

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it sounds like the immobilizer is faulty. this will shut off the electrical feed to the starter motor. you will need to take it to a garage to get this fixed.

hope this helps.

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You may have tripped something with the anti theft. Had the same problem and am trying to get it fixed.

Jul 27, 2008 | 1998 Pontiac Sunfire

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