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Rob Y

Help please - indicators not working

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The indicators have stopped working on my 1974 TR6 can you please give me some advice on how to troubleshoot this.

The flasher unit looks new - its round not oblong, but of course that doesn't mean it is working.

I also dont know if this is important but when I tried the indicators in the garage there was a click on the passenger side behind the dash and then nothing. It hasnt done this again turning the ignition switch on and off. The fuse is ok.

Could a blown bulb cause the problem?

 

I'm not an electrician but I know how to use an ammeter and follow basic instructions.

 

Any help would be appreciated.

 

Cheers

 

Rob

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Hi Rob,

if it is anything like the 4A flasher then new ones can be awful.

 

Firstly have you got a wiring diagram http://www.advanceautowire.com/tr2506.pdf

 

Check to see that you have power going to the relay.

If you have and it is not clicking then it could be duff. if it is duff then consider fitting a square one - ebay do a selection.

 

Roger

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Hi Roger, I've got a wiring diagram and I can see where the connections are.

For example I could see that if the fuse had gone some of the gauges wouldn't be working but they are - i've checked the fuses with the ammeter and they are all fine.

 

Should I just buy a new flasher unit - can I get one from a local shop like Halfords? I would love to get it going tomorrow before taking the car out on Sunday.

 

Cheers

 

Rob

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Try cleaning the earth spade connectors on the rear light housings - a well known trouble spot. Poor earths reduce the current flow through the flasher unit and stop it working on front and rear indicators.

Peter

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As all the indicators have failed then I would suspect the feed to the flasher unit, flasher unit, I went through two original ones and then fitted the electronic one from MOss with a good loud click. TR Shop would have one too

 

Both an excuse for s good run in the Sun tomorrow and with lots of hand signals.

 

A

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Swap your old bimetal flasher unit for an electronic one. Your local independent car spares shop should have one. You are looking for 3 terminals and you'll need to add an earth wire.

See the wiring diagram here.

http://www.autosparks.co.uk/product_info.php?products_id=1799

Jerry

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Thanks guys for the advice, a bit of work to do this morning or else its hand signals tomorrow!

I will check the earths and look to get a new flasher unit - the electronic one sounds good.

Can I test if it is the flasher unit by removing it and connecting the 2 wires? Would the indicators just come on without flashing when I move the indicator switch or would this do some damage?

 

Cheers Rob

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Therefore Rob should be able to prove that everything else is OK by shorting the two connectors together and then operating the indicator stalk when the respective lamps on each side should illuminate, ignition on of course.

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Hi Roger, Pete,

Yes it is a 2 pin unit. would be good to get confirmation it is ok to connect the 2 wires and test as suggested, just to be sure I am not going to damage something else.

 

Cheers,

 

Rob

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All fixed.

Just changed the flasher and now working perfectly.

Just to get the job done I replaced with a like for like one - but I will look into the electronic version if this goes again as suggested by Jerry.

Warm(ish) arms tomorrow!

 

Cheers

 

Rob

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The good thing about the electronic ones is the flash rate is constant, is doesn't slow down when other things are turned on...and they last.

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Does a UK '74 TR6 have hazard flashers?

If so there is a second flasher unit fitted to operate them.

Do the hazards work? If not suspect a power feed problem after the fuse.

The same fuse also makes the fuel gauge and brake lights work.

 

Cheers

Peter W

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Hi Peter,

It turned out to be just the flasher so a simple fix.

My '74 TR6 doesn't have hazard flashers, so no help there with the diagnosis.

 

Cheers

 

Rob

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I have been in Kuwait for 5 years. Move here and you can totally disregard the need for them in fact I am sure their an optional extra

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