Cadillac Repair: security light, coat hanger, security light

Question
QUESTION: My 91 deville cadillac 4.9 security light continues to flash when engine is shut down. If the car is not run in 1-2 weeks the battery is drained completely. I have taken it to cheverolet dealership for repair. They said that it was pulling correct amps   and they could not find any problem with the light blinking or why the batteries were being drained. I went by the book as for as locking the door to set the alarm, but light continues to blink until the battery is drain dead. My heater sometimes heat and other times not. I do not work on my cars for majors repairs.

ANSWER: The first thing you need to do is see if their are any codes in the computer.

1. Ignition ON. Engine OFF.

2. Simultaneously push and hold the OFF and WARMER (^)  buttons on your climate control panel for 3 seconds and release them.

3. CODES will appaer in the form of LETTERS & NUMBERS and will stop at .7.0

4. Tell me EXACTLY what codes appear EXACTLY as they appear as if you were video taping them.

5. Turn OFF ignition switch.

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

QUESTION: reply codes are as follows base on instructions received.8.8.8..EE52.07.0 what about the security light staying on. note it goes off when engine is running,

Answer
FIRST we needed to see if there were any fault codes in the computer that was causing the light to illuminate of which there is NOT according to your answer.

The only code you got was EE52 which means that the battery has been disconnected in the past.

What you have is a fault in the vehicles THEFT SYSTEM.


You have a fault in one of the below components:
door jamb switch.
theft deterrent control module.
lock cylinder tamper switches.
theft deterrent relay.

If you have tried to unlock any of the doors using a coat hanger or thin metaal rod, You most likely damaged one of the wires at the lock cylinder in the door.

If you have not done the above, You will need PICTURES and test procedures with pictures to diagnose and find the faulty component.

Since this is NOT my website and the owners do NOT allow pictures you can e-mail: onlineautohelp@msn.com and obtain the information that you need.