You need to take it to the dealer. One of the system computers is failing. I do not know that model but it could be either the body computer or dash computer. Good Luck.
SOURCE: 94 deville wont turn over, i think my alarm is in theft mode
Have the ignition fuses replaced and have the shop that installed the remote start fix the main power sorce for their unit.
SOURCE: 1990 cadillac wont start
It's your PATSII security system...Any good mechanic should be able to fix this for $50-100 WITHOUT REPLACING THE BCM (tell them I said so).
Good Luck
SOURCE: car will not start anti theft system acting up wont let starter
Cadillac dealer can by pass that anti theft module
SOURCE: theft system locked
To get the key out; look under the steering wheel for a plastic flat head screw. untwist it and then push the spring in and your key will be free. Then, go to your fuse box and remove the main fuses and you will hear the doors unlock when the system reset itself. Plug them back in and start your car. This just happened to me... seems the only things that were working were the navigation screen, headlights, fog lights, and reading light on the inside. Dash board was all dark except the engine light.
SOURCE: why did the security theft system lock up the
I REPLACED THE BATTERY IN MY MOTHERS CADILLAC CTS, AND NOW IT WILL NOT DO ANYTHING
Whenever
this warning light or any other stays on in the dash it is indicating
that the systems control module (or the system sensor in the case of
lights like low oil pressure, door open indicators etc.) has detected
a fault, it then disables the system (this applies to ABS,TCS, TCM,
SRS, TPMS, MIL, CEL and BCM faults and others) as long as the light
is on. You must now have the dealer hook up a special electronic
diagnostic tool and "scan" the system for the fault code
that is stored for the problem(s)
Legend of Abbreviations. ABS Anti-lock brake system. TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module. TPMS Tire Pressure Monitor System, MIL Malfunction Indicator Lamp, CEL Check Engine Light.
1988 CADI Eldorado Biarritz, 4.5 liter v8: locked keys in car, called locksmith he put inflatable air bags in door to stretch 4 space to slide his crooked metal stick in and reach pull the handles, push electric door lock button/switch and manually but doors would not open. He than pulled the keys out of ignition and out the crack. Guess what, both doors sounded like they unlocked with the key but would not open. Is there some kind of anti theft protection that kicks in when you mess the doors and locks inside? Help, I have my keys but car doors will not open. Did stretching or forcing doors open a bit with these airbags possible cause damage?
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