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Some electrical trouble....


Aerial_stu

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Thankfully I passed my MOT two weeks ago, because now I have a problem.

Any ideas where to start would be gratefully received.

When I turn my headlights / sidelights on, my left indicators also come on (solid, not flashing) - which I was alerted to because of the horn repeater.

Also noticed, when I turn my left indicator on (when no headlights are on) all the dash lights go on and off as the indicator flashes.  

Flipping heck, where do I start?

Thanks

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Wow!

  1. What's a horn repeater?
  2. Has there been any work on it since it was all OK?
  3. Have you got a multimeter and would you like a wiring diagram?
  4. Checking earths is a good idea, and I'd add the instrument earthing point to that list. 
  5. Work the hazard warning light switch on and off a few times... has that made any difference?
  6. Remove all of the side and tail bulbs. Switch the sidelights on... does the left indicator still come on?
  7. Remove all of the indicator bulbs. Turn the left indicators on... do the instrument lights still come on?

Jonathan

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Also check battery connections are clean, bit of grease and tight, I spent months chasing round to find it was a simple earth lead on the battery.

Would they have disconnected anything at the MOT and re connected it badly - potentially causing the fault?

Otherwise stick with the guys comments above -probably spot on, spend a lot of time looking and wiggling (the terminals :)) prior to removal and checking you may well see looseness.

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Stuart, do a search on eBay for "dielectric grease", it's well worth applying a little to connectors, earth points etc when you're re-making connections. It slows down the build up if the green plague on the copper connectors and prevents dry joints.

Stu.

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