Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
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Are you replacing an ignition key or a remote transmitter for the door locks?
The key has a chip in it for the security system. The chip must match the original key. There are 15 different possible key codes.
This could be bypassed under the dash with a resistor, but you would still need to have the correct resistance value.
Please make a brief explanation, i am not used to this system but i am good with transponder key built cars.
So what should I do to start the car? Do i have to order ignition key and lock complete? If it’s a resistance, is it possible to bypass the system? How can i check the resistance inside the key? is the key number written somewhere?
Okay ! do i have to measure the resistance with ignition ON or OFF, key IN or OUT? so in that case , i can use the non transponder key i cut, RIGHT? does it have some tolerance or it has to be accurate resistance?
It would seem that there should be at least a small voltage signal on one of the wires. It could be that the VATS module is faulty. This is all part of the Central Control Module behind the rear seat. If this module is replaced, you can use a new key with a chip, or substitute any resistance value and the new module will learn that value.