Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.The Service Theft system light coming on usually means the key has lost it programming. The first thing you need to try is to perform the Vehicle Theft Deterrent (VTD) System Learn Procedure. See the steps to do so in the link below. Copy and paste the link to your browser to open and view them.https://dl.dropboxusercontent.com/u/104923897/Pass%20key%20relearn%20Dec%2010.pdf
How are you checking voltage if with meter they will show 12v but under a load sounds like it drops to zero or less than 9v in which modules will shut down and there are alot of them, I would start with a battery personally or connections but sounds like you all ready have. Not being able to remove the key is a voltage issue, you can have 12v been have insuffincent amps to perform tasks.
Curious how you made out with out the caddy?
Still a voltage issue? Is the battery dead again? Does the problem seem mechanical or electrical? This car and most GM's for some odd reason need power to release the key the final turn.If the battery is dead again then you have a draw something killing the battery. let me know I will be working today and will check in time to time.
This is all news to me the first post indicates in storage and possible low battery. see how that is cleared up you need to look into the park switch in the shifter assembly it controls the solenoid that allows for key removal in park. can you release the key while fiddling with the shifter?
Not sure why i did not see your response just happened to be going through older stuff. My apologies.
You can use your test light as a draw meter, remove the positive cable and attach in series one end of test light to the battery and the other to the positive cable. With a load such as dome lamps or radio the light will glow. Do not try to start the car with the test light hooked in series! So with test light installed you can determine the draw by the strength of the draw. Access fuse panels and one by one remove fuse and monitor light, you may have to trip the door latches with a screwdriver to shutdown interior lights. One the fuse is found that effects the test light you can then narrow the system down.
Sorry did not proof read, You can determine draw strength by brightness if light. You may want to test full power of light by testing prior to connecting in series.
Any luck with the draw?