mcc1979ian Posted April 24, 2021 Share Posted April 24, 2021 Ok so I’v finally got round to adding a second battery and wiring up everything on my 90, question is how do I wire my led bar so it comes on both with main beam or independently? Iv googled it but there’s so many different diagrams come up you never know which one to believe. Quote Link to comment Share on other sites More sharing options...
western Posted April 24, 2021 Share Posted April 24, 2021 Via a 5pin changeover relay, so it will work independent & with main beam, just be aware that roof mounted lightbars that are behind the front axle centreline [from left to right] are not legal for public road use, HGV can use roof mounted lights as they are forward of the axle centreline. Quote Link to comment Share on other sites More sharing options...
mcc1979ian Posted April 24, 2021 Author Share Posted April 24, 2021 Ahh, cheers, never actually knew that and Iv been around HGV’s for a long time. Do you know of any diagrams that might help me? Quote Link to comment Share on other sites More sharing options...
western Posted April 24, 2021 Share Posted April 24, 2021 Have a read of this & a diagram is included, using a 3 way switch & a 4 pin relay Quote Link to comment Share on other sites More sharing options...
mcc1979ian Posted April 25, 2021 Author Share Posted April 25, 2021 Cheers 1 Quote Link to comment Share on other sites More sharing options...
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