Question about 2002 Pontiac Grand Am

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Starting problem the ignition seems locked in place and i can't start the car. does this have to do with the security system or do i have a bad ignition?

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If the ignition wont turn at all it is probably the ignition cylinder itself, try wiggleing the steering wheel while turning the key, if this doesnt help you will need to replace the lock cylinder

Posted on Nov 21, 2008

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I just installed a new key switch in my 2006 trailblazer it is a napa part now when I start it it will only run for a few seconds and die ?


That is because of the vehicle theft deterrent system ! Do you have a security light lit on the instrument cluster ?
The Passlock?"¢ System is provided in order to prevent vehicle theft if the ignition lock cylinder is forced to rotate or the ignition switch is operated while separated from the ignition lock cylinder case. If starting is attempted without authorization from the Passlock?"¢ System, the powertrain control module (PCM) will disable engine starting. Start disable may be in the form of fuel disable or starter disable, depending on engine application.
The components of the Passlock?"¢ System are as follows:
?€¢
The ignition lock cylinder and key


?€¢
The ignition lock cylinder case, including the Passlock?"¢ sensor


?€¢
The ignition switch


?€¢
The body control module (BCM)


?€¢
The security indicator on the instrument cluster


?€¢
The powertrain control module (PCM)

Ignition Lock Cylinder Case, Including the Passlock?"¢ Sensor
The ignition lock cylinder fits inside the ignition lock cylinder case and operates the ignition switch when turned by a key with the proper mechanical cut. When the ignition key is used to turn the ignition lock cylinder to crank, start, a magnet on the lock cylinder passes close to the Passlock?"¢ sensor within the ignition lock cylinder case. The magnet activates the security hall effect sensor in the Passlock?"¢ sensor which completes a circuit from the security sensor signal circuit through a resistor to the security sensor low reference circuit. The resistance value will vary from vehicle to vehicle.
If a magnet from outside of the ignition lock cylinder case is used to attempt to steal the vehicle, the tamper hall effect sensor will be activated. This completes a circuit from the security sensor signal circuit through a tamper resistor to the security sensor low reference circuit bypassing the security resistor. If the ignition switch is forced to rotate without the correct key, or if the ignition lock cylinder is removed by force, the Passlock?"¢ sensor will be damaged and will not operate.

Feb 22, 2015 | 2006 Chevrolet Trailblazer

1 Answer

Car wont start


Your passlock security system has gone bad, you need to have your ignition key lock assembly replaced ! This is very common for this type of car and can be done with a lil time and a lot of patients.

Jan 14, 2014 | 2006 Chevrolet Impala

1 Answer

Prostart locks and unlocks but won't start truck


Two things, Some Chev's have a security key that will only start the car when the ignition finds the ID chip in the handle of the key, when some places install remote starters they take the ID chip from the key and glue or tape it to the ignition switch so the remote starter will start the car without the key in it. I have seen some of the glue and or tape give out and the little chip falls far enough away from the ignition switch that it cannot find it and thus will not start. this is why it will work with the key in the ignition, You will have to find a service tech that knows how to remove the chip from your key handle (the plastic you turn when the key is inserted) then place it where the ignition switch can read it correctly. The ID chip is about the size of a grain of rice an is located in a small compartment in the plastic handle of the ignition key it is well hidden but a tech that has worked with this can find it. You could do the same if you get a additional key made for your car and place the key in the steering column very close to the ignition switch, but the new key can cost you in the $50 to $80 range so a tech would be a cheaper choice.
The second thing it may be is a bad isolator relay used in the remote starter, this relay is used by some more expensive remote starters to bypass the security system of the car by other means than placing the ID chip on the ignition switch. This would also need a tech to figure it out. But it should not cost more than $90 to fix by the tech, (less any cost to replace the ID chip or relay).

Nov 12, 2013 | Chevrolet Blazer Cars & Trucks

2 Answers

I have a 1995 pontic grand prix se.as soon as I start the car the security light comes on and stays on.


The ignition switch is not communicating with the BCM (body control modual) If it still runs your lucky, without getting it repaired soon the vehicle will stop running. The ignition will need replaced and the computer reprogramed to the new ignition lock. Your looking at a 4-$700 fix. GM's are starting to experience this alot more, the chip in keys and locks seem to have about a 10 year life span. There are bypass units available for around $200 but you have to install (have a profesional do it if your not well reversed in the automotive electronic field)

Apr 05, 2013 | Cars & Trucks

1 Answer

Sometimes it will not start! It has a new


the ignition swich may be bad that is where the security sensor is and they do go bad alot

Feb 02, 2010 | 1999 Oldsmobile Alero

1 Answer

The car want start i think its the key because someone tried to steal the car before


IF YOU SEE CAR SECURITY LIGHT ON.WHEN YOU TURN KEY TO THE START POSITION.NO STARTER NOISE.TURN THE IGNITION KEY IN SWITCH TO THE RUN POSITION FOR 10 MINUTES.IF SECURITY LIGHT IS OFF.TURN OFF IGNITION SWITCH FOR 5 SECONDS.THEN START ENGINE.IS IT STARTS OR NOT. YOUR SECURITY THEFT SYSTEM IS GOING BAD THE DEALERSHIP HAS TO REPLACE BODY CONTROL MODULE WITH NEW IGNITION KEYS AND LOCK CYLINDER AND SWITCH.THEY HAVE TO PROGRAM IT IN TO PCM SO CAR WILL START.MAKE SURE BATTERY IS GOOD IT HAS 12.5 VOLTS AND BATTERY CABLES CLEAN AND TIGHT.BECAUSE A BAD STARTER OR SOLENOID SWITCH AND WEAK BATTERY WILL CAUSE NO START UP.

Jan 25, 2010 | 2000 Pontiac Grand Prix

1 Answer

The locks jump up and down when i drive,sometimes wont start


the security system problems are common on this - do the lights flash and horn cycles when it locks up - the security system is wired into car main computer - can't be bypassed as far as i know - i read that to get around this lock doors manually - no key or remote - also hood switch could be problem

Sep 21, 2009 | 1998 Plymouth Grand Voyager

2 Answers

Car was stolen ignition was ripped out of 2002 grandam, now car won't start with ignition and security light keeps flashing


groan.....gunna need a bit more info. but i'll try. What portion of the ignition was ripped out? The tumbler + switch? If so, you might need to get the car's system resent to recognize that it has a new ignition put in. Sime vehicles have a theft prevention system in place to prevent the vehicle from running if its been hot wired. Your best bet would be to replace the damaged ignition components (You did not mention if you did or not). If it still doesn't work after you have replced all of the ignition components. You can try to reset the vehicle (doesn't work on all) disconnect negative battery terminal and go back into vehicle and press down the brake pedal for about 30 seconds then reconnect battery and try it....good luck, hope this helps

Aug 17, 2009 | 2002 Pontiac Grand Am

2 Answers

Car wont start


look for a loose wires if non then . there is part of the system being adjusted.

Jul 18, 2009 | 2002 Chevrolet Impala

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