Question about 2002 Chevrolet Impala

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Security Light always on, door lock fuse keeps blowing

When I start the car the security light comes on and sometimes it locks the radio. My inside interior lights will flicker and there is a clicking noise coming from the passenger side fuse box. My doors wont lock and we keep changing the fuse but it keeps blowing.

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  • Anonymous Mar 18, 2009


    Rwojt is correct. Eventually your car will randomly fail to start due to the Passlock system. Design flaws in the anti-theft system and the BCM are to blame. After replacement of the Ign switch, Ign cylinder and BCM, the BCM needs to be reprogrammed. Repair cost was just under $1000. Even if you can bypass the security system at start with a remote starter installed, you'll still need the BCM and reprogramming.

    My car's interior lights started flickering on day while the car was parked and not running. I noticed it from inside the house. The battery drained low enough so that the engine would not start in the morning.

  • Anonymous Mar 14, 2014

    has plenty of power. there is a clicking noise coming from the interior fuse panel

  • Anonymous Mar 21, 2014

    the interior lights stay on and door locks wont lock and alarm ringing wont stop

  • Anonymous Mar 31, 2014

    Fuse blows when I turn on the radio.

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This is most likely a problem with your Passlock anti-theft system which is known issue with these cars. Passlock is a "passive" anti-theft system, which means that it will disable your ability to start the car if it thinks there is a problem. The three components that can cause this are: 1) Ignition Switch, 2) Ignition Cylinder, 3) Body Control Module (computer). The dealer is the only one who can solve this problem (unless you can bypass it, but it is not that easy). Estimated repair from most dealers is $800 and up.

Posted on Dec 02, 2008

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