How To Fix Theft Passlock System On GM Cars - Chevy Malibu




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Jimmy S: I just connected a 2.2K ohm resistor to the yellow and black wire.   This will keep the theft system light off and start every time.  You only have to do the 10 min relearn procedure once after that fix.

Cathy Combs: Thanks for sharing...our old Malibu...has had this problem since 09....very aggravating.........haha   but...I have called Chevy dealer.............Nope.......they say........cant anthing be done..........called my garage.......and I think another?  Wonder why they act like they don't know HOW to disable this?   thanks again...

mrsparex: I had a 2000 Malibu and simply took the heater controls loose and took the radio out. I was able to "fish out" three wires wrapped in black cloth from under the ignition area. I t was about even with the heater controls. WITH THE CAR RUNNING I cut the yellow wire. The theft light stayed on and wouldn't go off but the car would always start! Please keep this thumbed up for others to find...thanks
(I'm happy to answer questions about this repair for free)
 1 Cor. 15: 1-4

Clint Coleman: Why did you say do not unplug the radio?
I have a 2002 chevy monte carlo and the security light will not come on for me to reprogram the information. I have tried everything that I know to do and I do not know anything else to try in regards to finding out why the light will not come on .
Please if anyone knows anything about this.

Eric “ss195” G: Incorrect way of fixing this. Placing a resistor in this circuit is a permanent fix without turning switches off and on at random. There are other threads out there describing this by mechanics who understand how this stuff works.

PatV Archery: If i do this would I be able to change the radio in my 2003 chevy malibu

greg james: This guy is great, the real deal, it's been 3 years with no problems! Just have to remember to flip the toggle when you have disconnected the battery. When you restart wait 2 min. then toggle back. A couple pieces of electric tape over the always lit when on thief system light. less annoying. cheers 1999 Malibu, runs great (still)

Young Papa: How to Fix Theft Passlock System on GM Cars - Chevy Malibu

Justin Webb: That happened to my mom on hers and she got charged 2000 dollars for a new computer this is way cheaper

Rajagopal Appavu: My question: My Chevy Malibu Randomly stalls, Because of theft pass lock system? please let me know. Thanks

wagslick: Yup. I'm no mechanic. Try it at your own risk. My car was running when I did the work. 

tripletsontherun: Wagslick are you still out there? I am terrified to touch wires while my car is running. So just to confirm. I leave the battery attached. Actually start the car (not just to the on position right), then take off the frame and move around inside to cut the wire and install the switch. I am fearful of electricity and couldn't hear your car running in the video so I wanted to make sure I got it all right before my kids find me torched in the driveway :-)

jessica daniels: You're a rock star man! This happens to our 2003 Malibu a lot! The thing is, it used to work , putting the key in accessory for 10 minutes. It would start. NOW, it takes 3, 4 times before it will start! That's 40 minutes being stranded somewhere ! Plus the dummy light (anti theft system) doesn't blink in accessory anymore. The light now stays on, not blinking. Any idea? If you could help, I would greatly appreciate it! Have a beautiful weekend!

Edgar Godoy: I did the whole process with the vehicle not on is there going to be a problem?


Edgar Godoy: I did the whole process with the vehicle not on is there going to be a problem?


Nala James: i just did my grand am yesterday...it was sitting for 2 days...cause of this stupid issue....I did mine a little different from yours, I used a resistor instead...had in started in 1/2 hr.....its disable for life.....

Ob Fuscated: There are multiple causes of Passlock problems.

The resistor trick bypasses problems related to the key/lock.

The modules such as Baker Electronix spoof the signal to the PCM from the BCM, which is cheaper by far than a BCM or fighting with a difficult system.

Passlock is commonly disabled with a tune in the PCM.

Resistor is cheaper than module is cheaper than a tune.

JesusLivesandRules: I saw someone else do this with the cigarette lighter...same concept as the toggle but you have to push in the cigarette lighter in order to start the car.

blackroses: My 01 grand am has same prob . Get rid of it . never is fixed. 

matt w: I just detach the battery and reconnect it. The system will reset and I usually won't have an issue again for 6 months to a year. I then just do the same thing again. Chevy usually make good vehicles but they really screwed up with these security systems. I'm sure they've learned from it.  

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