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Stumped On Little Green Turn Indicator Light Mk1


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#16 soulslinga

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Posted 13 February 2023 - 12:02 AM

 

WOW thanks for your patience, so i picked up an electronic flasher unit at the parts store and it didnt quite work, so i went back and exchanged for it a more old school 'thermal' flasher and that worked!!!! BUT one caveat, the little green light now never turns off lol... it flashes when i hit the turn switch (GREAT!!) but when i turn it off, the little green stays on as long as the ignition key is on. Also the light is noticably dimmer than it was when i hooked it directly to the horn's power earlier.

I could live with it after this long battle! But maybe if i picked up the 'official' flasher unit from minispares or 7ent then that will do the trick and work properly...? 

Either way, i've come a long way, thanks for helping me fumble thru this!

 

It does sound to me like the wrong flasher can, there are quite a few different 3 Pin types, though, at least in these parts, they type needed for the MKI Mini is quite common.

I'm not sure what after-market brands you have there for auto electrical stuff, but what you need is an equivalent to a Hella 3003. I'd suggest an old school thermal type of can instead of the electronic types as many of those need a separate earth to the can and are silent in operation.

 

 

as much as i hate to re-open this issue, i did receive my minispares flasher unit and am having issues similar issues still . 

heres where i left off - with an 'off the shelf' flasher unit - my turn indicator stalk bulb (tiny green bulb) was working. but it wasnt as bright as it should be, and it was also 'always on' with the ignition. always lit up, and not flashing - but it flashed with the turn indicators, which was good.. 

 

now i have the official flasher unit - and the turn signals are working as they should - nice and strong - but again i'm back to absolutely nothing on the turn switch green bulb. 

 

one question - does this OEM flasher unit need to be grounded to the chassis via the screw hole at the top? i know by design it is screwed into that spot and thereby grouned - but i wasnt sure if that is just where it lives for convienence  , or if it actually needs an earth/ground. i ask because i often troubleshoot without it being grounded/screwed into that spot. 

anyway, thx for any help. 



#17 Spider

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Posted 13 February 2023 - 04:50 AM

one question - does this OEM flasher unit need to be grounded to the chassis via the screw hole at the top? i know by design it is screwed into that spot and thereby grouned - but i wasnt sure if that is just where it lives for convienence  , or if it actually needs an earth/ground. i ask because i often troubleshoot without it being grounded/screwed into that spot. 

anyway, thx for any help.

 

Sorry that this still is an issue here.

I've not bought a Mini Spares Flasher Can, so I'm unsure if they need to be Earthed. The original Lucas Unit and also the Hella one I mentioned do not need to be Earthed. You could also try a Temporary Earth to it. I know some of the Electronic units need an Earth.

Just check the connections to the Flasher Can too;-

X      Green
L      Lt Green / Brown
P      Green / Purple
 



#18 weef

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Posted 13 February 2023 - 02:02 PM

OK the electric elves are giving you the run around so you will have to start again with your fault finding.

 

Remove the three wires from the flasher can so you can check which wire goes where. To do this you will need to supply 12volts to the LIGHT GREEN / BROWN and the LIGHT GREEN / PURPLE, you can clip a test wire onto the big battery feed wire on the starter solenoid, ensure this wire does not accidentally touch earth.

Do NOT turn the ignition on.

Now connect the 12v test feed  wire to the LIGHT GREEN / PURPLE wire you removed from the flasher can and the small green lamp on the colomn stalk should light up nice and bright. If not find out why and repair as required.

Once you are satisfied the light circuit is OK move on to the LIGHT GREEN / BROWN wire. Disconnect the 12v test feed wire from the LIGHT GREEN / PURPLE and connect to the  LIGHT GREEN / BROWN wire. Switch the stalk switch to operate the external indicator lamps, right then left and the external lamps should light up, but not flash, nice and bright corresponding to the switch possition. If not again find out why and repair.

Once you are satisfied the above circuits work as described move on as follows. Disconnect the 12v test feed wire from the LIGHT GREEN / BROWN wire. Connect the LIGHT GREEN / PURPLE and LIGHT GREEN / BROWN to their appropriate terminals on the flasher can and connect the 12v test feed wire to the third remaining terminal on the flasher can. Operating the stalk switch, right and left, should result in the flasher circuits working as designed, if not suspect the flasher can as being at fault. If the flashers work as designed disconnect the 12v test feed wire completely as you are finished with it and connect the GREEN wire from the ignition switched fuse to its terminal on the flasher can. Switch ON the ignition and try the flashers, you may have to start the engine, and everything should work, if not the ignition feed to the flasher can may be at fault.

This is an " ABC " to checking the circuit and I hope it results in you rectitying the fault.






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