switching drls

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howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: July 04, 2012 at 4:25 PM / IP Logged

Either, the LEGAL point you're missing is that the DRLs should come on automatically with the ignition.

Therefore wire the DRLs independently from the fogs without a switch, up to you about the switch, if so use that other diagram with another relay, independently fused.

There's plenty of ways to skin a cat! I'm just trying to keep you legal.

In the UK, DRLs constantly on with ignition, fog lights only with low beam headlights.

faja

Member - Posts: 9

Joined: December 12, 2009

Location: Ontario, Canada

Posted: July 04, 2012 at 6:01 PM / IP Logged

Yes, I understand all the above, but my DRLs do come on with ignition and function properly as if they were stock. Not sure if you missed the part where I wired the power lead of the DRL relay to the fogs and they work great, come on upon start and ebrake down, shut off when engine off, shut down when headlights are turned on etc etc. --- there is no switch, the DRL relay is all factory built-in. So what you're saying is leave this as is and then wired up the fog lights like in your previous diagram - is that correct?

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: July 04, 2012 at 6:06 PM / IP Logged

Exactly! My last one with the SPCO switch gives you the option of auto switch on with headlights/off/switch on at any time.

faja

Member - Posts: 9

Joined: December 12, 2009

Location: Ontario, Canada

Posted: July 04, 2012 at 6:17 PM / IP Logged

howie ll wrote:

Exactly! My last one with the SPCO switch gives you the option of auto switch on with headlights/off/switch on at any time.

OK >> thank you very much, I will give that a try and see how it goes

Cheers

faja

Member - Posts: 9

Joined: December 12, 2009

Location: Ontario, Canada

Posted: July 14, 2012 at 3:14 PM / IP Logged

OK Howie, I have combined some of your ideas along with another poster aka "user error" whose diagram I used to come up with this. Just wanted to run it by you and see if you think this is a safe and viable solution.

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: July 14, 2012 at 3:29 PM / IP Logged

Yes, it will work fine.

aponizuma

Member - Posts: 16

Joined: August 22, 2012

Location: Philippines

Posted: August 23, 2012 at 12:10 AM / IP Logged

hello! this is my first post and i am totally a noob with electronics, i hope you would bear with me -

i would like to use my cheap led headlights as DRLs. i already wired a LED strip by tap-a-fuse from the a power window line under the hood. my problem is how to use a 5-pin relay to make my park lights turn my DRLs off i.e., will this work -

IGN to 30, 87a (NC) to accessory (DRL LED headlights)

Tap from park lights to 85, 86 to ground

87 (NO) not used.

if so, could you kindly provide me with a diagram complete with diodes and fuses? also with diodes, where do i solder them - between the wires of 85 and 86 or the relay's plugs? appreciate greatly your help. thanks!

Noob Forever ....

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: August 23, 2012 at 2:21 AM / IP Logged

It's this simple:- F5D_lights.bmp

Easiest place to wire the relay would be under the hood but please make sure the terminals point down and the relay is protected from heat and damp.

In a cool place in a plastic sealed box (Radio Shack etc.) but remember plastic doesn't withstand heat very well.

aponizuma

Member - Posts: 16

Joined: August 22, 2012

Location: Philippines

Posted: August 23, 2012 at 2:49 AM / IP Logged

howie ll wrote:

It's this simple:- F5D_lights.bmp

Easiest place to wire the relay would be under the hood but please make sure the terminals point down and the relay is protected from heat and damp.

In a cool place in a plastic sealed box (Radio Shack etc.) but remember plastic doesn't withstand heat very well.

thank you !!! :) been waiting for that confirmation though if you don't mind, could 30 and 87a interchanged? also, i read somewhere that its possible to interrupt turning on the DRLs while the handbrake is engaged? how could i do that? thank you for the tip on the placement of the relay in the engine bay, i have this come with the relay and with tape will it suffice to protect the plugs?

switching drls - Page 2 -- posted image.

Noob Forever ....

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: August 23, 2012 at 3:04 AM / IP Logged

Yes,30 and 87a are interchangeable in this application.

A damp inhibitor spray or lithium grease in a spray work well.

You will need another relay from the handbrake switch wire, I'll post the diagram soon.

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