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Cadillac Repair/92 Deville pass key?

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Expert: - 3/27/2010


Question
I wrote to you about pass key problem,you solved it real fast, thank you.The same problem seems to be occurring.Is it possible that resistor I installed can blow,causing same problem?The resistor for bypass of pass key that you instructed to purchase to remedy.I hope you have an answer I want to hear, if not, I'm stuck again!No power,no lights, nothing!Battery is charged. HELP! Thanks,  Ray.

Answer
Hello,

You have something else going on other than the VATS. Although the no start symptom appears to be the same, it is not. VAT problem, all lights will work, just the engine won't turn over.

Here as you state, you have nothing which could be a corrosion problem at the junction block on the driver's side of the firewall, bad connections at the battery or something else going on. Without seeing the vehicle I could not begin to guess. All I can tell you with certainty it is not a passkey problem.

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Rob 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.

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