Stereo shows locked sometimes it takes a 10 mile drive before the lites go out but the passlock lite stays on.
The security, antitheft, or passlock 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.
This link may help you find ways to bypass this or fix it yourself.
http://vatspasslockpasskeysecurityhelp.yolasite.com/
SOURCE: service engine light
Therefore this is a HARD code that in your computer. I suggest that you take this vehicle to an Auto-Zone and have them put it on a code scanner. ITS DONE FOR FREE. They will be able to tell you what the codes mean and they can also rest this light. Good Luck
SOURCE: engine shuts off while driving
I would suspect a faulty EGR valve, but is the check engine light on? If it is, take the vehicle to an autoparts store and have them use a scan tool to retrieve the fault code(s) stored in the computer. Most parts stores offer this service free of charge. That will narrow the search for the problem. Sure hope this helped.
SOURCE: 1995 CHEVY VAN 20 305 WONT IDLE
Check your fuel pump presure. Pump is in the tank. Also try and loosen the fuel cap, the tank vent may be stopped up.
SOURCE: 2003 GMC Yukon with new lock cylinder. Passlock won't relearn
un hook the battery cables then try to reset it if that dont work then you will need to take it to a shop to have the passlock code reset
SOURCE: 1995 chevy cavalier passlock reset
Here is how to do the relearn.
Turn ON the ignition, with the engine OFF.
Attempt to start the engine, then release the key to ON, vehicle will not start.
Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
Turn OFF the ignition, and wait 5 seconds.
Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes, the vehicle is nowready to relearn the PasslockTM Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK.
Important:
The vehicle learns the PasslockTM Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
Start the engine. The vehicle has now learned the PasslockTM Sensor Data Code and/or password.
Thank you for using Fixya and just take you time and follow the instructions above. Good luck
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