Cadillac Repair: Computer Diagnostic Codes, Vats bypass, last key used

Question
I have a 1996 Cadillac sedan deville, when I try to start it up it reads: Starting disable due to theft system remove ignition key, then it says wait 3 minutes and start ignition. I wait the three minutes but it still doesn't start. I got the computer diagnostic codes but I don't know what to do next. These are the codes

History: pc0603, pc1632, ip1552, tc0027, pz1552, pz1558
Current: ip2780

Please help, What do I do next?

Answer
Hello,

Codes no longer mean anything to me. I no longer work with computer diagnostic codes from the 90's.

What I can tell you that one of the most common problems in that worthless GM anti theft known as vats is that the two very thin wires leading from the ignition lock through the column break inside the insulation. What you will need is a new ignition lock from the dealer for $500 or the same exact part from a locksmith for $250 or you can bypass the vats altogether for $100 bucks.

To try to start it, tilt the column up and down in different positions and try starting. Most of the time doing this will get the broken wire back temporarly and engine should start. Go to a local alarm store and tell them you need the vats bypassed. If you do this have a hidden starter kill instslled to protect it from theft. Don't be fooled, old cars are very popular to thieves.

I suggest all this because 9 out of 10 vats fail. After all of that clear the codes. If related to the anti theft, your problems should be handled.

Good luck!