Hi, I am wracking my brains to work out how to get the hazard tell-tale working. I am using the wiring diagram below. Indicators, indicator tell tale, and hazards all work well, but I cant figure out how to get the hazard tell-tale working, only when the hazards are on. (It flashes when indicator is on as well currently) I have tried a few things including using a relay, but cannot find a circuit within this set up that is only live when the hazard switch is depressed. (And not live when it is not) Any help would be hugely appreciated. I have gone nowhere fast on this, and I really want to get somthing other than my hooter sorted today!







Thanks in advance.

Matt

I used this from the "How to wire a kit car - the easy way" which was my bible

Disconnect all you wires to the hazard switch and with a multimeter or continuity tester check the relationship of pins 6 and 4.

I suspect that they are linked when the switch is activated and you can therefore drive a tell tale lamp by taking a wire from pin 4 to the lamp and then the other lamp terminal to gound.

If 4 and 6 don't link then you will have to change one of your switches. I suggest the hazard switch for one with another pair of normally open contacts.

[Edited on 4-8-12 by I predict a Riot]

Just to clarify the diagram above, the haz switch has the top two connected together in the "off" position and the bottom 4 all together in the "on" position.

This is scanned out of the Sierra manual for the combined indicator/hazard switch in that car, as you can see the hazard switch simply bridges all four pints and the hazard tell tale is on there. I found that this flashes all the tell tales when the hazards are on.



30 - fused live
54 -fused live, shared with reverse light switch
49- one side of flasher relay
49a - other side of flasher relay

Hope that helps.

[Edited on 5/8/12 by coozer]

thanks for the replies. I ended up using pin4 as a constant when switched on, to switch on a rely that connected the tell tale to the flasher relay.

Thanks again.

Matt