You are here:

Cadillac Repair/theft system problem on my 97 cadaliac elderado...


QUESTION: My theft system shut down my car complete.. I have tryed the lock door thing and nothing, tryed the 10 min. A few times wait and nothing, tryed in hooking the batteries and still nothing... Someone PLEASE helpme..

ANSWER: Hello,

You need to start from scratch here because it has to be established if this car even has a factory optional alarm and if that is the problem. The ignition security is known as Vats. That is that ugly black chip embedded in yours key. All your attempts have nothing to do with that system.
Why do you think the so-called anti theft system miss the problem? Warning on dash saying may not start in 3 minutes?
It is extremely common for anti theft to be blamed when it has nothing to do with problems.
That is why I ask,what leads you to believe the problem is anti theft on a potential of 2 separate factory installed anti theft systems?
Did your problem appear intermittently before?


---------- FOLLOW-UP ----------

QUESTION: No I opened the trunk with the key and not the button from inside then I went to start the far and it would not start just lights.. The dash said take key out of ignition And it said the car will not start due to theft system rather now it has 100% no power.. What do I do..


COMMON VATS junk problem. Very common! Been through thousands of these!
If dash lights come on but nothing happens trying to start, chances are extremely good you have a broken VATS wire coming up or going down the column. The problem is you will not find the break even with an ohm meter. Very thin wires like land line telephone wires. Break inside insulation and movement puts wires back together. This is not anti theft but anti owner. Dealer will hit you $800 for ignition/ harness assy.

Movement will in most cases get the engine to start. Sometimes trying to start in different tilt positions makes a difference or putting in neutral.
If this is what is wrong contact local alarm store and tell them you need VATS bypassed. Will cost you about $60 and you will never have problem again.
If there are no lights in dash with ignition on, that is another issue, which could have been caused by all your wrongful attempts to fix.
Will get into that if we have to.


Cadillac Repair

All Answers

Answers by Expert:

Ask Experts


Rob Painter


Alarm system questions cannot be answered on this forum. These systems are not what I can answer. Without being physically at the vehicle and not knowing what kind of electrical service has been done on the vehicle, there is no possible way to give an accurate answer over the internet. My expertise is in Ignition/key based anti-theft systems. These issues include GM VATS (resistor chip in key blade) PASSLOCK (MRD)-ignition lock rotation based, no special ignition key and the PKIII Transponder (computer chip in key) systems. These systems are not alarm based and are integral with the starting of the engine. This is why I cannot diagnose alarm problems without physically looking at the vehicle: Alarm systems are a completely different annimal than ignition key/lock based anti-theft system. Many alarm questions come from vehicles 10 years old, and since older, many hands that had been involved over the years.I am an expert in all GM factory (ignition/key based)systems. Alarm system questions pose to many situations beyond my knowledge as to what has been done to the vehicle over the years. Some guy may have actually wired the stereo into the alarm system. Who knows? Over my past 30 years in vehicle wiring repair, I have seen unbelievable wiring disaters done by guys that consider themselves "mechanics." I have seen stereos and alarms intalled using surgical tape. I have seen modules burn up, un-fused circuits, wiring jambed between the doors and even lamp cord used for a starter kill. To answer alarm questions over the internet without examining the vehicle is like asking; What does it take to remove a dent?


Education/Credentials-ASE certified. 11 years with a GM dealer and 17 years with a repair facility dealing with only the repair of theft recovered vehicles.

©2017 All rights reserved.