AboutRob Painter Expertise Alarm system questions cannot be answered on this forum. These systems are not what I can answer. Without being physically at the vehicle and not knowing what kind of electrical service has been done on the vehicle, there is no possible way to give an accurate answer over the internet.
My expertise is in Ignition/key based anti-theft systems. These issues include GM VATS (resistor chip in key blade) PASSLOCK (MRD)-ignition lock rotation based, no special ignition key and the PKIII Transponder (computer chip in key) systems. These systems are not alarm based and are integral with the starting of the engine.
This is why I cannot diagnose alarm problems without physically looking at the vehicle:
Alarm systems are a completely different annimal than ignition key/lock based anti-theft system. Many alarm questions come from vehicles 10 years old, and since older, many hands that had been involved over the years.I am an expert in all GM factory (ignition/key based)systems. Alarm system questions pose to many situations beyond my knowledge as to what has been done to the vehicle over the years. Some guy may have actually wired the stereo into the alarm system. Who knows? Over my past 30 years in vehicle wiring repair, I have seen unbelievable wiring disaters done by guys that consider themselves "mechanics." I have seen stereos and alarms intalled using surgical tape. I have seen modules burn up, un-fused circuits, wiring jambed between the doors and even lamp cord used for a starter kill. To answer alarm questions over the internet without examining the vehicle is like asking; What does it take to remove a dent?
Experience Education/Credentials-ASE certified. 11 years with a GM dealer and 17 years with a repair facility dealing with only the repair of theft recovered vehicles.
Question I have a 1989 Cadillac Sedan Deville and it ran out of gas. I add gas and now it want start what can I do?
Answer Hello,
I will assume you mean it won't start. Impossible to determine without seeing the vehicle. The possibility exists that the fuel pump in the tank cavitated sucking air and burned up. You could have lost your prime. This means there may be air between the tank and the fuel delivery.
The first thing you need to do is check to see if the pump is even running. Turn the ignition on, open the fuel filler door and remove the cap. If you can't hear a humming sound, your fuel pump is not running. You need to check the fuse.
All of this can be unrelated to the not starting and could be a different problem.
If you check what I told you and can't get the engine running, you will need a mechanic to physically look at the car.