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How do you reset the security system on 2002 Trailblazer?

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  • DCib May 09, 2011

    what security system would you like to reset ? what are you trying to accomplish ?

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2 Answers

2002 Trailblazer security light on, will not crank, replaced steering column


Did you use the original key and lock cylinder? They are coded for the security system.

Dec 31, 2016 | 2002 Chevrolet TrailBlazer

1 Answer

I can't start my 2002 chevy trailblazer after battery change. my keyless entry is damage and i fear it is the anti theft security system not allowing it to kick over, any suggestion to start?


Is the security light flashing? If it is, put the key in and turn all the way but don't start. Leave on for 10 min. Or until the security light stops flashing. Turn off and then try to start.

Apr 10, 2016 | 2002 Chevrolet TrailBlazer

1 Answer

TRAILBLAZER WONT START


If the problem is no crank, could be the security system, key switch, neutral safety switch, starter, cables, or battery.
I would check for power at the starer and work back.
Did you try it in neutral ?

Jul 20, 2012 | 2002 Chevrolet TrailBlazer

1 Answer

I have a 2002 chevy trailblazer lt and my security light stays on... would a new battery fix this if not what would?


The issue with the security light is more of a communication problem. The key has a transponder in the plastic head. This sends a signal to the ignion/lock cylinder. The ignition reads this signal, converts it to another signal and sends it down the line to the TDM (Theft Deterrent Module). The TDM is the main brain of the security system. If it gets the correct signal and everything is working properly, it will do its job just fine and allow the starter to start and the injectors to pulse like normal. If there is ANY break in the system ANYWHERE, then the TDM cant send the signal and the vehicle shuts down with no notice except the SECURITY light. Here is a site i found on the subject. Pretty informative.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Aug 08, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

I swap out the old engine for a working one .. now it wont start


This is commonly caused by your car anti-theft security system being triggered: you nornally would need to identify yourself to your car dealer and get them to reset this alarm for you.

Dec 25, 2009 | 2002 Chevrolet TrailBlazer

2 Answers

2002 chevy trailblazer what does EVAP Emission control system malfunction code #P0440 on an actron code scanner


most p0440 codes are related to gas cap problem check cap and reset code if it the problem code pops problem with a fuel line follow lines from filler neck down and under vehicle[ look for smell of gas or cracked line] all the way up to throttle body if have leak fix asap

Sep 21, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

I got out fo the car and hit the door lock, and the same time I open the back door. Now the car will not start


Check the inertia switch. It is usually in the trunk and has a reset button you press and hold for 3 seconds.

If that does not work and you have a keypad for the entrance system you may need to enter the code instead of using the keyless remote. You may have bothered the security system although this is not suppose to happen.

Sep 04, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

Wont Start


THE IGNITION SWITCH IS THE PROBLEM. IT'S NOT A SECURITY ISSUE.

Jul 16, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

2002 Chevy Trailblazer Ltz won't start no lights


make sure the battery termanals are tight,, give it a jump and see, can't hurt.

Dec 31, 2008 | 2002 Chevrolet TrailBlazer

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