Engine light came on then security light also

Question edited for clarity and add maker.
Question moved to model category.

If the Security Light is on, the anti-theft immobilizer is stopping the vehicle from running. What did you think its purpose was? :>D

With having wires cut, that makes things complicated.

https://www.fixya.com/cars/r29887709-gm_passlock_security_system

Security system I have a 99 cadillac escalade. The ... - Fixya

https://www.fixya.com > Forum > Cars & Trucks
Nov 14, 2019 - 30-Minute Learn Procedure 1. Turn ON the ignition, with the engine OFF. 2. Attempt to start the engine, then release the key to ON; the vehicle will not start.
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The crank sensor is on the front of the engine on he lower part of the timing cover on the passenger side. If you look under the vehicle near the crank pulley you will see it.

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check the ground wires on the frame by the back axle

NOT A REAL TRUCK BUDDY YOU DONT NEED A TAILGATE YOU NEED A TRUCK

Whats dose it mean went I have my service stability system light on and it dosent trun off .. I have a Cadillac escalade truck 02 All wheel drive hope some one could help me.......

Most probable cause is your headlight switch, but could also be the headlight relay (in the underhood fuse box).

I have a 2002 Cadillac Escalade EXT I was removing the aftermarket CD player and it's parked now my gas gauge and speedometer and center console doesn't work what do I do

check belt and check p/s fluid if ok pump is probably bad with truck running you should be abel to see the fluid flowing threw th reservior when running

i had the same problem u need to take off and clean the throttle body and it clears right up

change spark plugs,check for valcum leaks. multiple misfire is spark plugs,coil or wires