Wiring Wizards?

[Manxdavid]

I want to wire up my front indicators (12v/21w single filament) to be on all the time with the ignition as daytime running lights (easy enough) but I also want to wire them to flash as indicators. Old Yanks used to be wired in a similar fashion,rear  brake lights doubled as indicators, and from what I've read so far I could do what I want using an American trailer relay, but I was wondering if anyone knew of a cheaper/easier way. I don't want to add extra lights.

Thanks chaps.

[Dave DND]

You can do it with two heavy duty diodes attached to each light. 

I would use 1000V diodes either 6A or 10A

Put one diode in line with the +ve indicator feed to light - anode towards the light (line on diode towards filament)

Put one diode in line with the +ve sidelight feed to the light - anode towards the light (line on diode towards filament)

That should sort you out 

Diodes can be got from here

https://www.ebay.co.uk/itm/10-x-P600M-Rectifier-Diode-6A-1000V/253036724233?epid=13004947477&hash=item3aea2a0009:g:A-EAAOSwcXpb2xrB

[Manxdavid]

Thanks, I'll give it a go when I do my winter upgrade.

[Dave DND]

David -

Scrub that idea - Rookie error on my part !   

Won`t work like that as if DRL is illuminated then the indicator function would stay illuminated and not flash.

You would need to revert to your plan B of a USA style flasher unit

Sorry   

[Manxdavid]

Okay, I'll get my bro in law to nip to Pep Boys in his lunch break.

[93fxdl]

What about switchback led bulbs, connect one side to a live and the other to the indicator circuit, will give you a constant white light which goes out when the indicator is used
Ttfn Glenn

[Manxdavid]

What about switchback led bulbs, connect one side to a live and the other to the indicator circuit, will give you a constant white light which goes out when the indicator is used
Ttfn Glenn

That sounds perfect. Where would I find something like thst.? eBay maybe? I must admit to being a real dinosaur and I've never heard of such black magic.

[Hunter]

Hi David,

Got these fitted to mine now.

 https://www.ebay.co.uk/itm/2PCS-Car-Flexible-Switchback-Flowing-LED-Strip-Light-DRL-Turn-Signal-Amber-White/163901563471?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

Did take a video but not been able to send it, fitted them last year, the lights are quite bright and catch your eyes. 

Cheers H

[Manxdavid]

Thanks H but I don't want to fit any additional lights, just stick with what I've got but rewired.

[snoopy]

Would a beetle indicator switch with the parking light function work the indicators as normal but use the parking wires left and right to turn off a relay powering the running lights you would need diodes where the feeds to the bulb meet to stop feed back, just a thought.

[93fxdl]

What about switchback led bulbs, connect one side to a live and the other to the indicator circuit, will give you a constant white light which goes out when the indicator is used
Ttfn Glenn

That sounds perfect. Where would I find something like thst.? eBay maybe? I must admit to being a real dinosaur and I've never heard of such black magic.

I got mine from Amazon, originally i planned on going USA style but research showed people running amber drl, tended to get mistaken for indicating, so I went for clear lenses with Amber flash

[Manxdavid]

Would a beetle indicator switch with the parking light function work the indicators as normal but use the parking wires left and right to turn off a relay powering the running lights you would need diodes where the feeds to the bulb meet to stop feed back, just a thought.

Thanks Keith but too complicated for me.

[Chad]

Hi DAVE,

Would these work?

https://www.ebay.co.uk/itm/2PCS-7440-T20-Switchback-LED-DRL-Turn-Signal-Light-Bulbs-Dual-Color-Amber-White/402401448122?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20131231084308%26meid%3D7ec9b0707819409c9d23ab7e43da6007%26pid%3D100010%26rk%3D5%26rkt%3D9%26mehot%3Dlo%26sd%3D163901563471%26itm%3D402401448122%26pmt%3D1%26noa%3D1%26pg%3D2047675%26algv%3DDefaultOrganic%26brand%3DUnbranded&_trksid=p2047675.c100010.m2109

Thanks
Chad

[brummie_steve]

It can be done with two changes over relays and two indicator relays. Don’t know about the American trailer relay. If you need a wiring  diagram let me know

[Manxdavid]

I think I'm set on using led's and resistors now thanks Steve as it seems the simplest solution. They're on s slow boat from China as we speak...