Security system light goes on, fue blows for power door, trunk
I can drive my 2002 Impala sometimes for days, sometimes for a few minutes and the security light comes on. When I shut the car off, it seems to reset and it may come back on. code reader showed short in driver door power lock. replaced this. check engine light then displayed and replaced the trunk lock. Lately car was started, lost my PRND321 display, error display then showed security, check engine. I shut car off, it didn't restart. could not open or close windows. towed to garage. they opened and closed the connection (next to fan belt unit) and the car restarted. They are puzzeled, and I am getting tired paying to have it "fixed" only to keep blowing fuses (same one) and having an unreliable car.
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have key in hand. Lock door from outside vehicle and attempt to open with key again. May have bad lock assy. Otherwise try disconnection of the battery. Let sit for 10 minutes. Reconnect battery to reset computer and attempt to unlock vehicle and start vehicle. May have to be reset with some typer of diagnostic scanner.
what makes you think someone tried to steal it? the security light issue is a very common problem with GM cars equipped with the Passlock II anti-theft system. just a few days ago my 2003 impala did the same thing in front of a 7-11. took me about 10-15 minuts to get it started. i just kept turning the key on, tried to crank it, and turned the key off numerous times. i had a 1999 malibu that did the same thing and i replaced the ignition cylinder and keys. that cost me about $160 but it solved the problem. changing it out is fairly simple. if thats the route you have to/ need to go i can walk you through it. unfortunately however, GM, although this is a very common occurance, will not issue a recall to fix the problem.
It's could be your PassLock security system that is failing. It started happening earlier this year on my 2002 Impala. If you wait about 20 minutes, it's starts right up after it resets. It started to happen every couple weeks and then every couple days, after a few months. I ended up bypassing the security by soldering in some resistors.
Could be a shorted out or damaged power door lock module. I had a 1990 Oldsmobile Cutlass Calais that had corrosion on the contacts of the module that when cleaned worked fine. Before that, the power door locks would lock the doors inexplicably.
For the cruise, I would check the fuse first.
Also, parts are probably still available for your car since it was made 8 years ago, which falls under the 10 year limit.
This is a problem with chevy vehicles that have the system theft light. after a couple of years of using the key, the lock tumblers inside the ignition switch tend to wear out and so causing the system to think it's being stolen. Now you have to put the key in and turn the ignition to the on position, without cranking the car and leave it for 10 minutes until the theft light goes out. Very annoying especially if you're in a hurry. The dealer cost to repair the ignition switch goes for about $600-$800. that includes re-teaching the key.
I discovered the hard way- ($85.00 later) Step 1: turn key to "on" position. step 2: open driver door. (security light should be flashing on and off) step 3: wait ten minutes with key in "on position and driver door open. step 4: when 10 minutes is up-(youll know-because security light will have stoped flashing after 10 minutes) close driver door ,turn key to "off" position, then turn key "on" to start. drives me crazy!! I have to do it to mine sometimes 2-5 times a day! GM doesnt have a fuel reset button etc. like fords do.
check to see if your "interior cabin lights" fuse isnt blown it is a 15amp fuse one of the top two rows in your fuse box. i have a 2002 A4 avant and when that fuse blows my security beep doesnt make any sound but the doors lock.
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.