Jon Ison
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| posted on 5/2/14 at 04:10 PM |
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Indicator strange problem, help
Got LEDs as indicators been on for years with no issues, run a led dedicated flasher unit.
The problem, when I turn on the ignition the unit clicks as if operating but it's not and no indicators are operating, if I operate the
indicators they work as they should, hazards work as they should ignition on or off.
I've just replaced the unit thinking it was just a malfunction of the flasher unit, the new one does exactly the same.
Why? Help.
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theconrodkid
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| posted on 5/2/14 at 04:31 PM |
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you probably got water (wonder how that happened) in one of the bulb holders causing a slight short to earth,LED,s take so little current the
slightest leak sets them off....just my theory 
who cares who wins
pass the pork pies
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Jon Ison
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| posted on 5/2/14 at 04:55 PM |
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I'll check but doubt it, it's been in garage since November as was fine when parked up. I'll have to get a meter on job see
what's going where but I'm no genius particulary when it comes to indicator circuits.
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gavin174
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| posted on 6/2/14 at 06:43 AM |
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I would check around/in the car for little shavings of insulation...
maybe you got a mouse that taken a liking to your wiring loom!!
http://www.essexkitcarclub.com
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Jon Ison
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| posted on 6/2/14 at 07:34 AM |
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Anyone know what I should be looking for with a meter, 3 pin relay ?
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MikeRJ
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| posted on 6/2/14 at 09:12 AM |
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Depends on the type of relay you have. Some require a supply and a ground and the other output goes to the indicator switch and warning lamp. Others
require no ground, and the extra terminal simply goes to the indicator warning lamp.
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Jon Ison
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| posted on 6/2/14 at 10:58 PM |
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Faulty indicator stalk, sorted.
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silex
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| posted on 6/2/14 at 11:06 PM |
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It sound like you have picked up a short, probably from a wire rubbing against the edge of a panel as you managed to run the car for a number of years
without problems.
I suspect the problem is in the wire that goes from the flasher relay to your indicator switch as you said the flasher operates without the indicators
being activated. You should be able to check this easily with your multimeter. Ignition off, unplug the flasher relay, place the positive lead of the
meter onto the harness terminal that would normally connect to the flash output of the relay. Place the negative test lead on a good clean earth on
the chassis or better still the negative terminal of the battery if within reach. If the meter shows continuity you have found your problem and check
that wire for damage from the relay back to the indicator switch.
Your multimeter should be set to continuity test, but depending on the cost/quality of the meter you may want to try the resistance check as well.
This is because panel rubs are not always 100% connections and the continuity check may not always pick it up, checking the resitance should. Many
modern meters will automatically pick up a resistance in continuity mode, but this does depend on your meter. If you show a resistance, you still have
a short and need to fix it.
Murphy's 2 laws
1. If it can go wrong it will
2. In case of emergency - refer to rule 1.
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