Immobilisers - Basic principles
Discussion
Before I rip out my current Centurion Carguard immobilser, can anyone explain the basic principles of operation to help me understand where it is going wrong?
For example apart from locking out the fuel and ignition circuits when the transponder is out of range, would it also react to a drop in voltage as some car alarms do?
Despite renewing the transponder, the unit occasionally fails to activate the ignition and fuel pump circuits and flashes the normally steady red LED. The annoying thing is that I cannot work out what could have changed over night to cause the lock out.
For example apart from locking out the fuel and ignition circuits when the transponder is out of range, would it also react to a drop in voltage as some car alarms do?
Despite renewing the transponder, the unit occasionally fails to activate the ignition and fuel pump circuits and flashes the normally steady red LED. The annoying thing is that I cannot work out what could have changed over night to cause the lock out.
Edited by Red Cabbage on Monday 25th August 13:14
stevieturbo said:
Nothing lasts forever....
Ive also seen people wire alarms to cut power circuits, instead of relay trigger circuits for immobilisation. Then the alarm circuits burn out over time, as they were never designed to carry loads.
Electronic good usually last a very long time, but they can also fail just as easily. The underbonnet area of a car, isnt always a nice environment.
I see your point.Ive also seen people wire alarms to cut power circuits, instead of relay trigger circuits for immobilisation. Then the alarm circuits burn out over time, as they were never designed to carry loads.
Electronic good usually last a very long time, but they can also fail just as easily. The underbonnet area of a car, isnt always a nice environment.
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