My 2002 Sonoma will not start. I have power. How do I disable the security system, The light goes off when I shut the door but still will not start

Your vehicle does not have an impact activated fuel shut off switch like the ford vehicles. Power is provided to the fuel pump by the fuel pump relay. Power is provided to the fuel pump relay by the Main relay. Both relays are controlled by the Engine computer or PCM. The PCM can disable the fuel system by not energizing the fuel pump relay if the immobilizer system has been triggered by the use of a non-authorized ignition key being used to start the vehicle. This should also trigger the security light to be flashing on the instrument cluster as well. Look for that rapidly flashing security light to see if this is the problem.

Is the security light on somewhere on the dash when this happens? This sounds like a classic case of the security system shutting down the starter and going into antitheft mode. Read up on the link for some symptoms and do it yourself solutions. http://vatspasslockpasskeysecurityhelp.yolasite.com/

Let's say that the battery and it's cables are good and charged and tight. and clean. You walk up and unlock the car and get in and close the door ( is the security light on? ) if it is can you put in the key and turn it on and does the security light go out? If it does'nt then you'll need to reset the security system. The GM way. With the doors all closed and the driver window down, reach in and turn the key to start and let go. the security light will be on steady, between 10 and 15 minutes it'll be out. Turn the key off and turn it back on and the security light will be back on, agian wait till it goes out. Again after it's out turn it off and wait a sec. and turn it back on, the light will come back on. again wait till it goes back out. this time ( the third time ) turn the key off wait a sec and then turn it to start and if everythings alright it'll start right up or crank OK and you'll have to finde another problem but the security system is'nt going to be it. If you battery is'nt good enough to do this you need a new battery anyway and your going to have all kinds of troble till you chcnge it.

Do you know how to do automotive electrical testing ? Looking at a wiring diagram an check power an grounds for the lights that are not working . Voltage drop testing !
Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
Learning how to test properly is the way we fix automotive electrical problems .
How to Use Multimeter to Troubleshoot Common Problems
Do you know what a wiring diagram is ? You need these to find testing points in a electrical circuits . Free wiring diagrams here . http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size. Under system click on lighting ,then under subsystem click on parking lamps . Then click the search button ,then the blue link.
Electric Testing Techniques You Need to Know .
As far as your door goes take the door panel off an check componets inside , window componets for being tight . with out hearing an looking at the door would be guessing . take to a repair shop .

if the security light is flashing try to shut all doors and using the key lock and unlock the drivers door from the outside. This should disable the security system and allow for regular operation. i hope this helps

The SECURITY light is located on the instrument panel cluster.

If the ignition is off and any door is open, the SECURITY light will flash, reminding you to arm the system. To arm the system, do the following:
1. Open the door.
2. Lock the door using the power door lock switch with the door open or the remote keyless entry transmitter. The SECURITY light should come on and stay on.
3. Close all the doors. The SECURITY light should go off within approximately 30 seconds. If a door or a trunk is opened without a key or a remote keyless entry transmitter, the horn will sound and the lamps will flash for about 30 seconds.

Also can check this and other details in the 2002 Cadillac Owners Manual (page 85 and next).

Hope helps (remember rated and comment this).

have the system check by a locksmith

There is a security feature that will allow to go for a short distance but will stop. It is basically the same as the alarm, when you lock your doors, and then shut the door as you exit, there is a red security light that will blink in the dash. If you manually unlock and open any other door besides the driver door, the alarm will go off. To disable the alarm you have to cycle the key in the driver door. The same goes for the security feature. Cycling the key in the driver door lock manually, should disable the security feature until the doors are locked again. There may be a problem with the remote if you use it instead of you key to unlock your door.

how do i disable the security system in my 2002 dodge durango

Make sure your hood is shut. I just got my 2002 Honda Odyssey back from the dealer today (90,000 mile check-up - I love my van and will drive it until it dies!) and when I went to lock the van with my remote transmitter, the lights didn't flash and the horn didn't sound. I open and closed all the doors and tailgate and I could hear that the doors were locked, but the security system wasn't working and that is why the lights didn't blink or the horn didn't sound. I walked up to the front of the van to check the hood to make sure it was closed (there isn't an indicator light for an open hood, only open doors) and the hood wasn't shut completely. Once I opened the hood and let it drop to securely shut, I hit the door lock button on the remote and everything worked like a charm! Hope this helps others in this predicament.