Switching relay with dome lights and switch problem
05-11-2014, 07:49 AM
#1
Switching relay with dome lights and switch problem
Hi, I've wired up a relay that takes power from the dome light to switch it as well as a rocker switch I installed.
Here is the schematic I drew up:
Of course, the issue I'm having is that when I use the rocker switch ("CabSW") to flip the relay my dome and cargo lights turn on because I have the "CargoLights" lead connected to the positive switched wire in the dome light assembly. How can I fix this so that only my relay turns on and not the other lights? I'm assuming I may be able to just put a diode on the one wire, would that work? Thanks!
Here is the schematic I drew up:
Of course, the issue I'm having is that when I use the rocker switch ("CabSW") to flip the relay my dome and cargo lights turn on because I have the "CargoLights" lead connected to the positive switched wire in the dome light assembly. How can I fix this so that only my relay turns on and not the other lights? I'm assuming I may be able to just put a diode on the one wire, would that work? Thanks!
05-11-2014, 08:02 AM
#2
Hi, I've wired up a relay that takes power from the dome light to switch it as well as a rocker switch I installed.
Here is the schematic I drew up:
Of course, the issue I'm having is that when I use the rocker switch ("CabSW") to flip the relay my dome and cargo lights turn on because I have the "CargoLights" lead connected to the positive switched wire in the dome light assembly. How can I fix this so that only my relay turns on and not the other lights? I'm assuming I may be able to just put a diode on the one wire, would that work? Thanks!
Here is the schematic I drew up:
Of course, the issue I'm having is that when I use the rocker switch ("CabSW") to flip the relay my dome and cargo lights turn on because I have the "CargoLights" lead connected to the positive switched wire in the dome light assembly. How can I fix this so that only my relay turns on and not the other lights? I'm assuming I may be able to just put a diode on the one wire, would that work? Thanks!
Yessir - you nailed it - a diode to block the backfeeding will do the trick.
Good luck
MGD
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Xamith (05-11-2014)
