varad scanner

I have a crimestopper alarm I have a varad alien scanner been hooked up for 4 years its very dim so I bought a varad raptor scanner to replace it. I hooked up new led scanner using same wires that are hooked up red to 12v constant black to body ground and orange to gwa (orange starter kill on alarm) with a 1 watt diode and the thing will not work. I have tested the scanner by grounding orange wire and it works just not with alarm. I never had problems with the alien scanner and still works what is wrong with this new one. any one have any ideas!!!

arm the alarm.using your multimeter you turn to ac and connect red probe to constant and connect black lead to the orange wire connected to the scanner. It miight be a very weak volt signal therefore giving you a dim  light. It may be a orange wire that is affecting it. 

ooops, sorry i meant DC

I tried that already getting 12.3 v on meter I also have a window mod on that out put and window mod works fine so I know the output works also tried unhooking window mod and hooked up only scanner and still would not work. I have hooked up scanner to #3 button opp. and it worked but you have to hold button for that -output to be constant.Did that just to see if scanners trigger was working.

tried that to did not work. even hooked red to new power sorce that did not work. I am about to throw it in the trash and keep the dim alien scanner it always worked just a little hard to see.

did you connect with diode in line? try going direct with orange wire. 

Tried that too. Tried with 1w diode in both directions still will not work.

no I just got the raptor led scanner to replace the old fadding el display alien scanner that still works I have not got the raptor scanner to work with the gwa the alien scanners only have about a 5 year life because it is el display and it is about 4 years old so it is about used up I just wanted a new scanner .as for the diode I have tried 3 differant kinds of 1w diodes strip to alarm end and fliped to strip to scanner end did not work in any direction.