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Where is the security box located at on a 2000 L series Saturn

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Security Box ? Do you mean the anti-theft system ? The body control module controls the anti-theft system . Software programmed into the BCM .

The Passlock™ system is made up of an ignition lock assembly, Passlock™ sensor, body control module (BCM), instrument panel cluster (IPC), and either a powertrain control module (PCM) for L61 engines, or an engine control module (ECM) for L81 engines.
The BCM has the Passlock™ controller integrated into it which controls the majority of the security systems logic. The BCM reads the data from the Passlock™ sensor continuously. If the data is correct and has been received by the BCM within a specified time, the BCM will send a coded password to the ECM/PCM. The ECM/PCM will then allow the fuel injectors to operate.
There is nothing you can or should do to this system , you can render your vehicle useless . Your best bet , take it to a qualified repair shop

Posted on Jan 01, 2017

Testimonial: "Thank you Jeff. I was putting a bulldog remote start on it and got aggravated and took it all back off,now it won't respond to throttle commands. Revs up real slow. Is it resetting itsself?"

  • Jeff Armer Jan 18, 2017

    Is what resetting itself ? Anti-theft system ? If the theft light SECURITY isn't lit doesn't have anything to do with that . Is the check engine light lit ? Sounds like your describing a problem with electronic throttle control , but don't think your vehicle has that . Where were you hooking the wiring into ? It didn't have a problem before did it ? Double check your wiring .

  • Jeff Armer Jan 18, 2017

    Did you have the battery disconnected ? The PCM may need to relearn setting's . Turn the key on & off 4 or 5 times . Do you have a scan tool that reads engine data , check sensor data .Without checking out myself not much else i could say .



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