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Joined: Nov 2015
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Just barreling along
Needs to Get Out More!
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Just barreling along
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Kevin, sounds like an earth fault to me, start by removing the bulbs and checking the holders internally for corrosion


Jon M
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Needs to Get Out More!
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Hi Kevin, if all external lights have stopped working I would be looking at feed to the light rocker switch. The bulbs themselves obviously require a chassis connection but doubt these would collectively fail on all four corners of the car. Below is screenshot of applicable part of main loom.

[Linked Image]

If you can trace the +12 volts power on purple wire at light switch using a multimeter set to cover 12 volts DC it should be permanently live. If not check the fuse it's fed from. Unfortunately individual fuses are not numbered on diagram but it's a 15 amp one second up from bottom on right hand row above. Check also the feeds out of switch to side light (red/green) and headlamps via dip/main switch (probably blue). Note the lights are fused after the switch but via five or six fuses as sidelights and headlamp filaments are fused individually, so unlikely to be the issue.

As can be traced the headlamp flash switch is fed unfused directly from ignition switch which may explain why it's working. Is this via normal stalk operation though?

I know you said indicators failed as well but they also have separate fused feeds. A possibility would be stalk failure but sidelights should work independently.


Richard

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K
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K
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RichardV6,

What can I say but a very big thank you, thanks so much for your advice,

Over the next few days I will go through the item suggested, hopefully i can get it back on the road,

Thanks again

Kevin

Joined: Mar 2019
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Originally Posted by Leroy
Discovered something odd today, an guessing it might be relay related. All indicator lights are working. Turning left normal, hazards work as normal, but turning right, they are rapid, like you get when you have a bulb out, but they both flash. If this is a relay issue, can anyone advise where it is, and which one it is to replace please. I'm guessing it's under the dash, above the gear stick. TIA

You don't give your model or year, Leroy, but something similar happened to my 2013 4/4. Left indicators worked fine but right was double speed click & dashboard repeater but nothing outside the car. Luckily I was on my way to Newelms and thought a replacement relay was all that was needed. Newelms thought it was a blown bulb but neither was the case.
This became worrying when they explained that cars of Matilda's youth use a very expensive PCB to control all the electrical accessories (see other posts about PCBs!). I drove home using hand signals (does anyone under 70 understand them?) while Newelms investigated solutions..
A week later I was recalled. They had spoken to the factory & other reputable dealers with no answers forthcoming but had borrowed a couple of used PCBs to compare and needed the car left with them.

The next day I learnt the solution. Despite having 28 fuses conveniently accessible under the bonnet the indicators have two extra inline fuses behind the dashboard (why? you ask) These must have been the cheapest available; because when moulded the plastic had overlapped the clips connecting the fuses and after 30,000 miles & 11 years the contact had given up. Bless Darren for persistence and not going home until he'd found the problem. Cut back the errant plastic and the connection was restored.

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Talk Morgan Guru
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jackmorini, thanks so much it is good to know in case of.


'14 4/4 graphite grey
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