Question about Cadillac DeVille
The reset is'nt possible it's problem to get get. Your key has a (chip) it it it's realy a diode that has a certain resistance. The key lock has contacts in it that touch this diode and relay this resistance to the computer and then it's happly and let's the car start. Most of the time the contes are Okay but you should check before you go into the next thing to check. looking into the lock where the key enters and start to insert the key and you can see the contacs tring to touch the key. if their bent or way off the key with a small bent pick you can bend the contacs so they'll pust on the key more, don't get carried away as too much and the tip of the key will bend it all the way out of the way. If this does'nt seem to be a problem the next step is to verify that the key is being read and you first need to read the key it's self with an OHM meter. It'll be 100 OHMs or 200 and so on. then find the same wires art the floor board as the wiring comes out of the steering collum. There's a big electrical connector near the base of the steering collum with a bolt in the middle holding it plugged in. On the outsides of this plug are a piggybacked plug on both sides of the main plug in on of these piggyback plugs coning from the steering collum are going to be two white wires all the way to one end of the piggy back pulg and their very thin and right next to each other, these are the wires that should be the key if it's connected. with this plug unplugged and the key all the way into the lock these two wires shoul read the same as the reading you got when you read the key itself earlier. if it does read the same your in troble bad as the computer has locked you out and a GM dealer will have to connect you to thier interface to unlock your car. This is not likly to be the case as the wire that we're testing is more likly to be broken the right way and an altentive( cheaper) way is possible you can go to the store and but a lock and key cyclinder for your car
This wire connector on the lock cyclinder you can put your key in this lock you just bought and connect the wires where the white ones in the plug were and use a spare key to turn your old lock and the security will read your key as it's connected now and you can turn the lock in the collum and it'll start and run. or you can fix it right. If you have the tools and skills. ( you can rent some of the uncomon tools at the parts store that your buying the new lock cyclinder. You need a steering wheel puller and a lock plate depresser. you also need the tools like picks and skill to use the lock plate depressr. Once the lock plate is out then you can remove the torx headed bolt ytheat holds the lock cyclinder in and remove it. I connecte a wire ( coathanger to the old wire before I pull it out of the collum so the new wire can but pulled back in to the same place were the old wire was ( it needs to be). If the old lock was working smoothly I just remove the contac ring from both the new lock and the old one and put the contacs and the wire on the old lock then re assemble it and it will work with your old key and will have the new wire. be careful to rount the new wire the same as the old on with just enough slack as you turn the key as it'll break the new one if it's too tight or if theirs too much slack in the wire it'll hang in the lock plate and get cut by it. I f you need to use the new lock and key you'll need to get the new key copied and a key cutter with the same diode resistance and alot of key cutters don't do this work or charge alot of money to do it . The dealers charge about $500 to do this work. Repairing the wire does'nt last very long as it brole as it flexes as you turn the key right where it breaks and the repair will break even eaisier.
Posted on Mar 20, 2011
1. First, insert the ignition key and turn the ignition switch to the "On" position (Do not start the engine). Leave the switch on for 11 minutes. The security light may flash or be on steady during this 11 minute period. Make sure the light is no longer on or flashing before proceeding to #2 .
2. Turn the ignition switch off for 30 seconds.
3. Turn the ignition switch to the "On" position (as in step #1) for 11 minutes again.
4. Turn the ignition switch off for another 30 seconds.
5. Turn the ignition switch to the "On" position for 11 minutes a third time.
6. Turn the ignition switch off for 30 seconds one final time.
7. Turn the ignition switch to the "On" position one final time and wait 30 seconds.
8. Attempt to start the engine. If the engine starts and runs normally, the relearn is complete. If the engine does not start, check for trouble codes and address them before attempting the relearn procedure again.
Posted on Mar 20, 2011
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Posted on Jan 02, 2017
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