Question about 2002 GMC Sierra 1500

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How to reset the security code on a 2002 gmc sierra 1500

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Posted on Jan 02, 2017

witchertorqu
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SOURCE: how do I reset the security code on my radio of my

friend the only way is via a scanner you should use a scanner such as gm tech 2, or otc genisys

Posted on Dec 06, 2009

Testimonial: "Thaks..."

  • 6468 Answers

SOURCE: Engine error code of P0442 on GMC Sierra 1500 need solutions please.

the had a problem with the vent solenoid and changed designs may time

Posted on Jun 01, 2012

tayjoejoe
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SOURCE: 2002 gmc sierra won't start, security light came on

The security light is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterperates this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle. Remember too, the TDM controls the security light. Sometimes you can have ALL the symptoms and no lights.
This link may help you.
http://vatspasslockpasskeysecurityhelp.yolasite.com/

Posted on Sep 25, 2012

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2002 gmc sierra p0171 p0174 p0300 oygen sensor and misfire codes


Check for vacuum leaks to start. Then check the evap system. I just replaced a evap vent solenoid on a suburban with the same codes. fixed the problem.

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Factory radio wiring color codes


Here ya go. enjoy!
2002 GMC Sierra C1500 Car Radio Wire Color Codes
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: Under the center console.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
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Right Rear Speaker Negative Wire (-): Light Blue

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1 Answer

Hi, can you tell me how to reset the change engine oil light on my 2002 GMC Sierra 4X4 1500 PU. I changed the oil two weeks ago. Thanks, Gene


with key on engine off depress accel pedal 3 times within 5 secs. You may have to repeat the procedure several times for the reset procedure to complete. dont stomp on the pedal. Slowly depressing seems to work best. 

May 08, 2009 | 2002 GMC Sierra 2500HD

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