cypermethrin Posted September 21, 2012 Share Posted September 21, 2012 I am after some wisdom on the correct wiring to the back of a Defender interior light switch (PRC7371). Its the 2 position model controlling the interior light and the instrument cluster light I have the following wiring from the loom Purple/blue door switches to grd purple 12v live Earth And then the new light cabling which is an LED strip with a +ve and an earth. So the basic question is how to correctly wire this up to the unit shown below ?? The front and back of the switch looks like this Quote Link to comment Share on other sites More sharing options...
western Posted September 21, 2012 Share Posted September 21, 2012 purple/white trace from switch to interior light +ve connectionplain purple is the permanent 12v feed shares with clock if fitted.plain red from fusebox & sidelight warning light in dash panelred/white trace to instrument lightingwith switch top in the interior light should be onswitch in centre position interior light offswitch bottom in gauge lights off. Quote Link to comment Share on other sites More sharing options...
cypermethrin Posted September 21, 2012 Author Share Posted September 21, 2012 Perfect thanks as always Western Quote Link to comment Share on other sites More sharing options...
western Posted September 21, 2012 Share Posted September 21, 2012 your welcome. Quote Link to comment Share on other sites More sharing options...
gavinl Posted February 1, 2013 Share Posted February 1, 2013 On the door pillar the interior light switch switch, on the driver's side, has a black wire and a purple/black wire. There is no contiuity to earth for the black wire and the purple/black wire vanishes. 1. Please can somebody tell me where these two wires come out of the door pillar? 2. Where does the light switch on the passenger side wire go to? Quote Link to comment Share on other sites More sharing options...
rudd86 Posted February 1, 2013 Share Posted February 1, 2013 im having this exact problem today, I popped the interior light switch out as I have no interior light, and no instrument illumination.(its been like this since I bought it. the wiring is a real mess.) on mine there is no plug to go onto the back of the interior light switch/instrument lights. can only find a purple and white wire from the interior lamp back to the switch area with a bullet type connector on it... anyone have a bulkhead wiring diagram for an E reg 90? Quote Link to comment Share on other sites More sharing options...
gavinl Posted February 1, 2013 Share Posted February 1, 2013 You can download the Land-Rover manuals, wiring diagrams are in number 5, from: http://www.landroverweb.com/landrover/pdf-land-rover-manuals/ On checking I see that mine is purple/white at the switch. According to the manual it changes to purple from the interior light. Quote Link to comment Share on other sites More sharing options...
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