Question about 1998 Chevrolet Malibu

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Problem starting my 2002 Chevy Malibu because of the Passlock anti theft system. How do I disable the passlock system so I don't have problems starting my car.

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The only way to get by this is to install a remote starter had the same problem with my grand am it worked no more problem.

Posted on Jun 04, 2009

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Posted on Jan 02, 2017

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What most i do when my 2002 chevy avalanche security light keep flashing


Take it to the dealer or a ASE certified repair shop .or go on youtube an check out videos on anti-theft by pass for GM vehicles .There are a few different type's . VATS , pass key 1,2 or three . Being yours is a 2002 model year it isn't the VATS .
Passlock™ System
The theft deterrent system has been incorporated into the body control module (BCM). The theft deterrent is provided in order to prevent the vehicle operation if the correct key is not used in order to start the vehicle. The ignition key turns the lock cylinder. The cylinder rotation produces an analog voltage code in the Passlock™ sensor. This voltage code is received by the BCM. The BCM compares the voltage code to the previously learned voltage code. If the codes match, a class 2 message is sent from the BCM to the powertrain control module (PCM)/vehicle control module (VCM). The message enables the fuel injectors.
The design of the Passlock™ system is to prevent vehicle theft by disabling the engine unless the ignition lock cylinder rotates properly by engaging the correct ignition key. The system is similar in concept to the PASS-Key® system. However, the Passlock™ system eliminates the need for a key mounted resistor pellet. The components of the Passlock™ system are as follows:
• The ignition lock cylinder
• The ignition switch
• The Passlock™ sensor
• The Body control module (BCM)
• The security telltale
• The vehicle/powertrain control module (VCM/PCM)

Feb 18, 2016 | Cars & Trucks

2 Answers

03 chevy malidu when the moter starts it shuts off


it could be the passlock system ( anti theft system ). heres how to find out. all gm vehicles from 97-2005 contain an anti theft system called the passlock. on chevy malibu turn key on, let it stay on for 10 to 15 minutes. then turn ignition off, take out key from ignition, after 1 minute start the car. thats if its whats wrong. if this is your problem you can disable system for good ! go to www.tubesound.com/passlocksystem hope this helps,

Feb 14, 2011 | Chevrolet Malibu Cars & Trucks

2 Answers

01 chevy malibu won't start, security light blinks but after leaving the switch in the on position for ten minutes it will start is there a permanent solution to this?


I have the same problem on my 2001 malibu. Do a google search for 2001 Malibu Passlock malfunction. You have to have the passlock system replaced, although I've seen many forums where people have had it replaced only to have it malfunction again because Chevy never made a new passlock that does not malfunction for older Malibus. Also, if you get a remote car starter I've heard this will disable the passlock therefore removing the issue of it malfunctioning so you would not have to worry about it not starting.

Dec 20, 2010 | 2001 Chevrolet Malibu

1 Answer

How to disable the anti theft system on the malibu


you can go to tubesound.com/passlocksystem to disable passlock system for good. just type in problem.

Sep 17, 2010 | 2000 Chevrolet Malibu

1 Answer

2004 chevy impala 6 cyl. Would not start. Lights etc worked, battery okay. Engine would not turn over. No starter cranking. Call AAA they said to turn the key on for 10 minutes and try again. third time...


it resets the anti theft system, so vehicle will start. all gm vehicles from 97-2005, contain a anti theft system called a passlock system. go to tubesound.com to disable passlock for good. (just type in your problem when page comes up).

Aug 20, 2010 | 2004 Chevrolet Malibu

2 Answers

When anti theft light is blinking the car wont start. Can you bypass the anti theft device


On a 2003 Chevy Maibu the theft system light comes on and blinks when the system is triggered. The car will not start and the fuel pump cuts out. You must turn key to on and have all doors closed. Keep the key to on for 10 mins til theft light turns solid and then disappears. Then turn key to start and it should fire up.

Jul 01, 2010 | 2003 Chevrolet Malibu

1 Answer

My 2004 Chevy Malibu passlock keeps locking


you can easily bypass the security system entirely. There is a great write-up here http://newrockies.ca . That was the only solution that saved my Park Avenue.

May 24, 2010 | 2004 Chevrolet Malibu

2 Answers

Theft system passlock on 2003 chevy malibu. theft


yr gonna have to get the passlock key and punch it into the radio so u can solve ur problem most chevy dealships can assist you with that.

Jun 18, 2009 | 2003 Chevrolet Impala

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