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1995 Chevrolet Cheyenne won't start

Anti theft light on when turning ignition switch

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  • Chevrolet Expert
  • 252 Answers

It's common for GM vehicles to have these problems. I did a bypass on brothers old Malibu. Search around for the closest thing to your vehicle.

bypass GM anti theft YouTube

Posted on May 13, 2017

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: anti theft device for 97 ford expedition

I have 2007 expedition XLT and the interior light blinking all the time what the solution ?

Posted on Oct 18, 2008

harley9701ha
  • 424 Answers

SOURCE: anti theft system

The chip is in the key. Either the key has lost it's program or the transceiver is not recognising the key. Try another key if you have one.

Posted on Jan 26, 2009

  • 4 Answers

SOURCE: Chevy Tahoe 2004 Anti Theft Device has been activated.

leave the key on for about 5 to10 min then try to start. Are reset to computer by leaving the key on for 10 min and try to start the vehical.Do this procese 3 time then it shold reset

Posted on Feb 12, 2009

junmag
  • 175 Answers

SOURCE: anti theft device for 1997 ford expedition

try using a spare key first

Posted on Jun 02, 2009

  • 14036 Answers

SOURCE: The car wont start, the

TRY REPROGRAM KEY .PUT KEY IN IGNITION SWITCH TURN IGNITION SWITCH ON POSITION 20 SECONDS DONT START ENGINE WAIT 20 SECONDS TURN OFF SWITCH THEN TURN SWITCH BACK ON 20 SECONDS WATCH THE THEFT SECURITY LIGHT BLINKING.WHEN THEFT STOP BLINKING VECHICLE WILL CRANK.IF LIGHT STILL BLINKING.TRY FEW MORE TIMES KEY IN SWITCH ON POSITION FOR 20 SECONDS.MAKE SURE YOU HAVE THE CORRECT CAR KEYS IN SWITCH IF NOT WRONG SET OF CAR KEYS WILL SET OFF THEFT SECURITY SYSTEM.IF KEY RESETTING TRICK DONT WORK.CHECK BATTERY POWER MAKE SURE YOUR BATTERY HAS 12.5 VOLTS AND CHECK SECURITY THEFT FUSE.IF ALL LOOKS GOOD YOUR SECURITY HAS TO BE CHECKED OUT AT THE DEALERSHIP.

Posted on Oct 08, 2010

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Jan 13, 2016 | 2005 Chevrolet Malibu Maxx

1 Answer

2004 cavalier won't start, need to reset anti-theft


the way i reset the antitheft is to put the key in the ignition and turn it on till all the dash lights come on but dont start it let it sit 15 minutes turn the key off and turn it on again till all the lights come on again repeat this procedure three times after the third time turn the key off for about 5 seconds and then your car should start hope this helps.

Mar 30, 2013 | 2004 Chevrolet Cavalier

1 Answer

06 trailblazer trouble with anti theft system, I think, starts right up then other times the anti theft light comes on and it won't start. can try it 2-4 hours later and it starts right up????


The first thing to do get it checked for DTC'S - diagnostic trouble codes . Not at auto zone or any other parts store , you want to have full scan of all the modules on the car. Don't know how much you know about automotive electronics , computer controlled systems etc.... Your vehicle has at least 10 modules (computers ) on board , there all talk to each other on a serial data network . C.A.N - controller area network . Or in the case of GM it has it's own . GMLAN -
How to Diagnose Controller Area Network CAN When you turn that ignition switch to start it is an input to the computer ,be it the PCM or BCM ..

Jul 01, 2017 | 2004 Chevrolet TrailBlazer

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I replaced the ignition switch in my 1995 ford ranger now the alarm won't stop


95 Ford Ranger Auto Alarm Wiring Diagram.

You need to re-check your ignition wiring. Here is the wiring for the alarm.

Battery Constant 12v+ Positive Wire (+): Yellow
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness

Starter Positive Wire (+): Red/Light Blue
Starter Positive Wire Location: Ignition Switch Harness

Ignition Positive Wire (+): Light Green/Purple
Ignition Positive Wire Location: Ignition Switch Harness

Second Ignition Positive Wire (+): Black/Light Green
Second Ignition Positive Wire Location: Ignition Switch Harness

Accessory Positive Wire (+): Gray/Yellow
Accessory Positive Wire Location: Ignition Switch Harness

Parking Light Positive Wire (+): White/Black Or Brown
Parking Light Positive Wire Location: At Headlight Switch Or Low In Drivers Kick Panel

Power Door Lock Negative Wire (-): Pink/Yellow (Type B)
Power Door Lock Negative Wire Location: In Either Kick Panel

Power Door Unlock Negative Wire (-): Pink/Light Green (Type B)
Power Door Unlock Negative Wire Location: In Either Kick Panel

Door Trigger Positive Wire (+): Black/Light Blue
Door Trigger Positive Wire Location: In Drivers Kick Panel

Domelight Supervision Wire: Use Door Trigger (Requires Relay)
Domelight Supervision Wire Location: N/A

Horn Negative Wire (-): Yellow/Light Green
Horn Negative Wire Location: At Steering Column Harness

Tachometer Wire Negative Wire (-): Any Wire With A Tan Stripe Or A Yellow Stripe
Tachometer Wire Negative Wire Location: At Ignition Coil

Brake Light Positive Wire (+): Light Green
Brake Light Positive Wire Location: At Switch Above Brake Pedal

Factory Alarm Disarm Wire (-): Dark Green/Purple
Factory Alarm Disarm Wire Location: Low In Drivers Kick Panel

Factory Anti-Theft System: N/A
Factory Anti-Theft System Location: N/A

Nov 16, 2011 | 1995 Ford Ranger Supercab

3 Answers

Car won't start, engine locked down due to immobilizer. Locks work, lights work. It's a 1994 Chevrolet conversion van g20 series . We charged the battery of the van, that's not it. It...


You most likely have a failed anti theft system. Go to this link to read about these systems. I have no permanent fix for you, but you might be able to bypass the anti theft parts at the ignition. This might get you going. http://vatspasslockpasskeysecurityhelp.yolasite.com/

Aug 01, 2011 | Chevrolet G20 Cars & Trucks

1 Answer

Car will not start- will crank- anti-theft light flashes - turn switch to on for 10 min. when light stops flashing - turn switch to off - then it will start. Changed to a new switch - worked or started for...


try a diffrent key,your extra one.Could be the micro-chip inside is not comunication with anti-theft-.This happened to me.I used the spare set for a few days .then the other key started working again

Jun 28, 2011 | 2004 Chevrolet Malibu

1 Answer

Replaced ignition switch in 1999 chevy cavaliar rs, anti-theft light comes on and stays on and won't allow car to start and remain on or run


You have to do a relearn procedure on the anti-theft system:

Attempt to start the vehicle. Leave the ignition on until the THEFT SYSTEM indicator turns off (about 10 minutes). Turn the ignition switch off. Leave the ignition switch off with key in for about 10 minutes. Attempt to start vehicle.

May 24, 2011 | 1996 Chevrolet Cavalier

3 Answers

How do you reset anti theft on a 2007 equinox


TURN ON IGNITION SWITCH TO ON POSITION.ENGINE OFF.REPEATEDLY PRESS VECHICLE INFORMATION BUTTON UNTIL PRESS TO RELEARN REMOTE KEY IS DISPLAYED.PRESS SET RESET BUTTON UNTIL REMOTE KEY LEARNING ACTIVE IS DISPLAYED. IF THAT PROCEDURE DONT WORK.INSERT MASTER KEY INTO IGNITION SWITCH.NOW SWITCH IGNITION ON SWITCH IGNITION OFF.REMOVE MASTER KEY.WITHIN 10 SECONDS INSERT NEW KEY.SWITCH IGNITION ON.ENSURE SYSTEM WARNING LAMP SWITCHES OFF.NEW KEY NOW PROGRAMMED.IF YOU STILL HAVING PROBLEM RESETING THEFT SECURITY SYSTEM THE DEALERSHIP HAS TO FIX.REPROGRAM IT.

Mar 14, 2011 | 2007 Chevrolet Equinox LS New Cars

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Engine won't turn over, no clicking or anything. Total silence. Battery terminals have been cleaned, battery is newer...... when ignition is turned on, air conditioning runs, lights do not dim, radio works...


try giggling the shifter or starting it in neutral--possible interlock switch failing. Also could be your anti-theft system--try using other factory key

Sep 06, 2010 | 1995 Chevrolet Camaro

2 Answers

Anti theft light comes on when driving


no cutoff switch!! try this turn key to on, do not start car. let sit for about 30 minutes, after 30 minutes, turn key off. wait 15 seconds and try to start car. this should reset anti theft system.

Feb 20, 2009 | 2000 Chevrolet Malibu

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