Question about 2003 Chevrolet Impala
Disable the passlock system permanently. The other functions will still work just fine. The passlock system for some mystery reason sometimes senses an intrusion even if there is not one and locks down the fuel injectors. Underneath the steering column there is a metal plate held in place with a few bolts. It needs to come out. In order to do so you may have to remove some dash components but it is not as hard as it seems. Once the plate is removed running up the steering column there will be (3) wires bundled or tied together. These are the wires for the passlock system (Yellow + Black - and White neutral) It is the only group of 3 configured like this. START the car and while the car is running snip the YELLOW wire ONLY! and tape off the ends. Put everything back together and live better knowing your car will now start each and every time. The Yellow or Orange security light will stay on permanently but this will not cause any other problems.
Posted on Feb 16, 2009
Read your owners manual - it suggests taking it to the dealer as something is wrong with the PassLock system.
Posted on Jul 25, 2008
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Posted on Jan 02, 2017
SOURCE: what would make the security
Possibly key is worn out. Key has a resistor with contacts on both sides, right? Do you have an extra key that works better? Or, have a new key made at the dealer.
Posted on Sep 03, 2010
The problem might be your Vats security system. This causes the car to either "not start" or "shut down" while running, or start for 5 seconds and then die. (depending on the system) If the security light flashes, i guarantee that this is what the problem is. 1st trick, (if not starting) turn the key forward 2 clicks till right before it would normally start, leave like that for 10 minutes. ( no less ) After 10 minutes, turn key back then forward and your car might start. I did this in my regal for more than a year.
Cheap fix: Bypass the chip in your key. Temporary, but effective.
Never worry again fix: Bypass the whole VATS/Passlock/passkey I or passkey II system entirely. Literally take it out, and throw it away. I just did this in my Regal. Took about an hour. Took longer to find the thing than it did to fix the problem. For a list of cars effected by this problem. See the NEWROCKIES link on the right side of their page.........
----- With this fix, you can take that whole Vats, passlock, passkey **** system out of your car all together. Good info on both sites
Posted on Jan 16, 2011
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