nickh7 Posted October 21, 2018 Share Posted October 21, 2018 Blowing fuse on RH tail light and right side side light not working either. LED rear lights and LED side light worked fine before engine swap. Have checked all bulbs / units by swaping sides . Checked multi plug all ok. Ideas please Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted October 21, 2018 Member Share Posted October 21, 2018 Does it only blow when the lights are switched on?And immediately after it's replaced?And is that affected by whether the connector near the lights is connected or not?...Do you have a multimeter and the appropriate wiring diagram?Jonathan Link to comment Share on other sites More sharing options...
nickh7 Posted October 21, 2018 Author Share Posted October 21, 2018 UYep have diagram and the MM Connected or not which is the concerning bit Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted October 21, 2018 Member Share Posted October 21, 2018 Yep have diagramAnd you've identified the far ends of the runs front and rear?Connected or not which is the concerning bitIt all helps in localising the fault!If it's only when the switch is thrown and unaffected by whether the light unit is connected you've already narrowed it down a lot. Now add some heuristics:If the fault only occurred after some recent work it's likely to be close to that work.Faults are pretty rare within runs of wire that look OK on the outside and don't include connectors.Faults in exposed bits are more common than elsewhere. But it's still worth checking the connections around the back of the switch.Jonathan Link to comment Share on other sites More sharing options...
nickh7 Posted October 21, 2018 Author Share Posted October 21, 2018 Thank you , tonight’s project sorted Link to comment Share on other sites More sharing options...
John Vine Posted October 21, 2018 Share Posted October 21, 2018 Sounds to me as though you may have pinched a cable run somewhere, sufficient to short it out.JV Link to comment Share on other sites More sharing options...
elie boone Posted October 22, 2018 Share Posted October 22, 2018 Side lights are separated by side so both sides have their own fuse, if you unplug the front and rear and the fuse is fine then you know the electrics are fine just up to that point, if you plug in the front and the fuse stay's fine you plug in the rears and if the fuse blows you need to search from the rear plug on to any abnormality. Link to comment Share on other sites More sharing options...
john milner Posted October 26, 2018 Share Posted October 26, 2018 A few years ago I fitted a pair of cheap LED sidelight bulbs. Very bright but they kept blowing I gave up on them when a fuse blew as well. Link to comment Share on other sites More sharing options...
nickh7 Posted October 27, 2018 Author Share Posted October 27, 2018 It’s looki like a pinched wire somewhere as it’s having some other bits done it will get sorted on the change from EU2 to 3 Link to comment Share on other sites More sharing options...
Stridey Posted October 29, 2018 Share Posted October 29, 2018 Maybe not your problem, but worth a thought, I had a problem with a rear indicator. Wiring pinch was tracked down to the wire from the front light, under bonnet just in front of engine. In retrospect I’d just done some work there and may just have disturbed the loom there. I’d spent ages looking around the rear light area... Link to comment Share on other sites More sharing options...
nickh7 Posted November 3, 2018 Author Share Posted November 3, 2018 I’ve now lost all the dash lights ! The fuse isn’t blown and the heater switch still works. Aaaahhhhh.The middle relay is clicking like mad when you switch from side to headlights. More time with the multi-meter today Link to comment Share on other sites More sharing options...
SM25T Posted November 3, 2018 Share Posted November 3, 2018 Is that relay falling out of the base ... or light switch failing. Link to comment Share on other sites More sharing options...
nickh7 Posted November 6, 2018 Author Share Posted November 6, 2018 It was the oil pressure gauge, the bulb holder was shorting against the case . Thanks for all your help Link to comment Share on other sites More sharing options...
SM25T Posted November 6, 2018 Share Posted November 6, 2018 Glad you found it. Link to comment Share on other sites More sharing options...
Wrightpayne Posted November 6, 2018 Share Posted November 6, 2018 Good find Nick - the thought of un-wrapping the loom to find the needle in the haystack fills me with dread!Ian Link to comment Share on other sites More sharing options...
revilla Posted November 6, 2018 Share Posted November 6, 2018 Sometimes when the problem gets worse and more things go wrong it just gives you more information and makes it easier to find. Well done! Link to comment Share on other sites More sharing options...
nickh7 Posted November 6, 2018 Author Share Posted November 6, 2018 Friend with multi-meter and a huge amount of knowledge was enlisted, we went back to basics and using the new wiring diagrams traced it to the red and white wires . We then disconnected everything with that wire and then reversed the process until the culprit was found. Craig normally looks after a rather large mast in Yorkshire so he enjoyed just how lovely and simple the 7 was. Link to comment Share on other sites More sharing options...
SM25T Posted November 6, 2018 Share Posted November 6, 2018 Holme Moss ? Link to comment Share on other sites More sharing options...
nickh7 Posted November 6, 2018 Author Share Posted November 6, 2018 Emley ! Link to comment Share on other sites More sharing options...
anthonym Posted November 6, 2018 Share Posted November 6, 2018 So which was the culprit? Link to comment Share on other sites More sharing options...
elie boone Posted November 7, 2018 Share Posted November 7, 2018 #13 Link to comment Share on other sites More sharing options...
SM25T Posted November 7, 2018 Share Posted November 7, 2018 Isn't the bulb holder designed to earth through the case ... Or do you have a different type of gauge. Link to comment Share on other sites More sharing options...
anthonym Posted November 7, 2018 Share Posted November 7, 2018 Ah, thank you.Edit yes I THOUGHT it sounded odd Link to comment Share on other sites More sharing options...
nickh7 Posted November 8, 2018 Author Share Posted November 8, 2018 It’s a think automotive mechanical gauge . The shroud on the conection was not covering all of the metal . When the new engine was fitted the system needed bleeding, disconnecting the pipe must have caused the bulb holder to move and short put all the dials and right hand side tail and side lights Link to comment Share on other sites More sharing options...
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