Question about 1996 Pontiac Sunfire

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ECM and PCM???

Are they the same thing? I have a 1996 Pontiac sunfire that won't start.The theft light is on..no chip in the keys that could go bad so I know that's not the problem.Someone told me to pull the ECM fuse and check it...

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  • Terri Richards
    Terri Richards Jan 14, 2009

    Yes,it is the factory system.

  • yadayada
    yadayada May 11, 2010

    An ECM and PCM are the same thing, starting in 96 all main engine control computers where call a PCM, it was due to the standard terminology required by the new OBD2 systems all cars starting using that year. Is this a factory security system?

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Take your key lock and unlock passenger door 3 times then see if itwill start

Posted on Jan 14, 2009

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Theft light being on i found out that if you put the key into the ignition and turn it to the ACC position wait ten minutes turn off and take the key out, doing this 3 times will turn the theft lock off.

Posted on Jun 02, 2009

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1 Answer

Theft system light on in a 2004 pontiac sunfire car wont turn on


did you use a key without a chip in it as this will set the theft system,if so use a key that has the chip in it.if you used the right key then you can try turning the key to the on position and leave it for i think 3 minutes then turn it off for 5 seconds then on for 3 minutes again then off then back on for 3 minutes then off then the next time when you turn it on try to start it.

Sep 18, 2011 | 2004 Pontiac Sunfire

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1996 pontiac sunfire cranks but won't start, I just replaced the automatic transmission and serpentine belt


Do you see a light anywhere on the dash that says SECURITY? This means that the anti theft system is shutting down your injectors. Very common on GM vehicles. If so, check out this link.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Jun 19, 2011 | 1996 Pontiac Sunfire

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I have a 1999 pontiac sunfire with a remote start. Sometimes when I push the remote to start my car, it will start and shut off right away and the anti theft light will flash. Is there something that I can...


no but what you have bad is your remote start brain box that is triggering the anti theft. i suggest taking to a auto electronic place for servicing or stop using remote start.

Jan 19, 2011 | 1996 Pontiac Sunfire

1 Answer

How do you reset the theft system (for the car, not the radio) on a 1996 pontiac sunfire se. the battery went dead and the car has been sitting for a month now. the car will not start with the key. it will...


Your vehicle is equipped with the Passlock theft-deterrent system.
Passlock is a passive theft-deterrent systemT. he system is armed once the keyi s removed from the ignition. Passlock enables fuel if the ignition lock cylinderi s turned with a valid key. If a correct key is not used, fuel is disabled.

During normal operation, the THEFT SYSTEM light will go off after the engine is started. Ln the unlikely event that the engine stalls and the THEFT SYSTEM light flashes, wait until the light stopsf lashing before trying to restart the engine. Remember to release thkee y from the START position as soon as the engine starts. If after several tries the vehicle still does not start, the vehicle may need service. At this time, you may also want to check the fuses. See your Pontiac dealer for service.

If the THEFT SYSTEM light comes on while the engine is running, a problem has been detected and the system may need service. See your dealer for service. In an emergency, call the Pontiac Roadside Assistance Program at 1 -800-ROADSIDE or 1-800-762-3743.

This ans other details can find it in this link for 1996 Pontiac Sunfire - Owners Manual.

I hope helps (remember to rate and comment this).

Oct 13, 2010 | 1996 Pontiac Sunfire

1 Answer

The ecm codes we read from a 98 pontiac sunfire are throttle position sensor low voltage, egr valve open throttle pintle position, theft deterrent crank signal malfunction, serial communications...


Hi, airbag deployment rarely causing damage to the wiring in the dash. The gauge cluster may of been damaged internally, but this usually shows up right away after repairs are done. I would check the connector on the PCM it is a cam lock design and if its been damaged or not closed properly it can cause crazy things to happen to the gauges. Good luck.

Aug 25, 2010 | 1998 Pontiac Sunfire

1 Answer

Theft system light on and car wont start


you may have to tow your car to your gm dealer to get your pats keys reprogrammed. your key has a computer chip in it ,if your using a different key without that chip ,your car wont start

May 14, 2010 | 2002 Pontiac Sunfire

2 Answers

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


in the 1996 sunfire GM uses an anti theft lock system. It can be triggered by all sorts of things. In order to relinquish this you must have a key to turn the ignition. These are not coded just plain cut keys. Once you attain this you put the key in and turn the ignition to the ACC position and wait ten minutes (theft lock light will turn off), turn off and take key out. You MUST do this 3 times and then the theft lock will be disarmed.

May 10, 2009 | 1996 Pontiac Sunfire

1 Answer

96' sunfire changed engines 2.2 starts dies theft light comes on


The problem is the new PCM you installed does not have the correct VIN number of your car.
You may be able to relearn the VIN using the preceedure below, however, there is no gaurentee it will work. You may have to have a dealer reset the VIN for you by way of a scan tool.

1) Instert key into ignition and rotate to run position (do not try to start engine)
2) Leave the key in the run position for 10 minutes until security light stops flashing.
3) Turn ignition key to off position for 10 seconds ( no more, no less)
4) Turn ignition to run position again for 10 minutes until security light stops flashing and repeat step 3 and 4 for (1) more cycle.

The process is a security verification step for the VTD system. ( Vehicle Theft Deterent)

Give it a try, let me know.
Regards,

May 04, 2009 | 1996 Pontiac Sunfire

1 Answer

Car wont start


The Powertrain Control Module (Chip) is usually in the engine compartment.To one of the sides of the motor. Or on some cars under the dashboard near the brake pedal to the side. It is a flat box type componant. You have to replace the entire PCM . The chip cannot be seperated from the box.

Feb 18, 2009 | 1996 Pontiac Sunfire

2 Answers

98 pontiac Sunfire shuts self off


You might not need a tumble, the sys is controled by the key, and transponder, and the ecm. Most auto locks smiths can come out and check the system, might just need a key re-programed

Nov 14, 2008 | 2005 Pontiac Sunfire

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