/en/qa/questions/isuzu Powered by Question2Answer /en/qa/61513/alarm-wiring-backwards This vehicle is an Isuzu NPR Eco Max box truck cab. &nbsp;&nbsp;I am finding that the door trigger wire is at 12VDC when closed! &nbsp;&nbsp;Then as the door opens, the wire drops to 0VDC. &nbsp;&nbsp;&nbsp;What do I do with this when wiring the alarm? &nbsp;&nbsp;What input do I use?<br /> <br /> &nbsp;<br /> <br /> The parking lights are doing the same thing. &nbsp;&nbsp;12VDC when off and drops to 0VDC when you turn them on?!? &nbsp;Im confused and not sure what polarity to set the alarm to operate the parking lights?<br /> <br /> &nbsp;<br /> <br /> Any help would be much appreciated!! Isuzu /en/qa/61513/alarm-wiring-backwards Thu, 29 Oct 2015 10:03:33 +0000 /en/qa/61103/2014-isuzu-npr-eco-max-truck-need-alarm-wire-colors-for-this-truck-cab I am Installaing an alarm system with remote start into this vehicle. &nbsp;&nbsp;It has a diesel engine and I am in need of the wire diagram for this unit. &nbsp;&nbsp;&nbsp;The system being installed is a &quot;Viper 5906V&quot; and I can&#039;t seem to find any information anywhere on this vehicles wiring. &nbsp;&nbsp;&nbsp;Please Help!!! Isuzu /en/qa/61103/2014-isuzu-npr-eco-max-truck-need-alarm-wire-colors-for-this-truck-cab Mon, 26 Oct 2015 15:07:39 +0000