lrfarmer Posted November 23, 2011 Share Posted November 23, 2011 hi hope someone can help as i can't find any posts that covers it last night the right hand dip beam went out so checked fuse's fine so checked bulb also fine there is 12V on the dip wire but as soon as i put the bulb dose not lite and the power drops right off the main beam works fine so dont think it is the earth left light is working as it should Quote Link to comment Share on other sites More sharing options...
western Posted November 23, 2011 Share Posted November 23, 2011 broken or disconnected wire behind the headlight, the wiring can be seen from the engine bay. Quote Link to comment Share on other sites More sharing options...
lrfarmer Posted November 27, 2011 Author Share Posted November 27, 2011 is there a relay on the light or is it all done on the switch if on the switch is there 2 contacts or dose the wire split is it split before or after the fuses as there is full power at the fuses Quote Link to comment Share on other sites More sharing options...
western Posted November 27, 2011 Share Posted November 27, 2011 there is a headlight relay behind the fusebox metal panel, switch has seperate contacts for power in, side/tail lights,dip headlights, the switch does get very warm & the headlight contact retreats into the plastic case which leaves the wiper arm trying to work across a gap between it & the headlight contact. Quote Link to comment Share on other sites More sharing options...
lrfarmer Posted November 28, 2011 Author Share Posted November 28, 2011 so there isn't 1 contact for each sid just on and i take it must split at the relay un less there is relays for each side i hate electrics thank you for your help so far i'm hoping to fix it before sunday as i have my last RTV of the year and leave in the dark and come home it it too Quote Link to comment Share on other sites More sharing options...
mmgemini Posted November 28, 2011 Share Posted November 28, 2011 Now you've found that a multi meter can give you a reading if only one strand of wire is connected...Please use a test lamp first..... Depending on the year of the Defender as to if relays are fitted....There should be two. One dip and one mainbeam. There should be a fuse for each side dip, again depending on the year. Have you H4 bulbs fitted? If so try pulling the contact lugs together a bit. If that makes no difference then check for power behind the connector block. It's also worth while to try another bulb. HTH Quote Link to comment Share on other sites More sharing options...
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