DRL-Fog Light Hack

[oldskool73]

"The switch live in my headlights is the grey wire with a black strip, when connected to that I have only 50% power in the DRL's. Fml " ... isn't that the point of that wire? Your DRL controller looks like one of the auto sensing ones that turns itself on and off via the battery voltage. That extra wire is to dim the DRL's when the main lights are on. If you don't want that to happen, just don't connect that wire... though MOT rules might require them to dim when the lights are on?

[itskenallen]

Originally Posted by oldskool73

"The switch live in my headlights is the grey wire with a black strip, when connected to that I have only 50% power in the DRL's. Fml " ... isn't that the point of that wire? Your DRL controller looks like one of the auto sensing ones that turns itself on and off via the battery voltage. That extra wire is to dim the DRL's when the main lights are on. If you don't want that to happen, just don't connect that wire... though MOT rules might require them to dim when the lights are on?

Problem is they're not lighting fully at all, even with the ignition on and the headlights off.

[oldskool73]

Originally Posted by itskenallen

Problem is they're not lighting fully at all, even with the ignition on and the headlights off.

I'd not connect that wire to anything yet then, take the headlights completely out of the equation, just connect the controller to the battery and the red & black wires to the DRL and see if they light fully. If they still don't light fully you have a faulty drl and/or controller.

Also, looks to me like in the image you attached they have mislabeled the wires. Looks like the one labeled 'DRL negative' is a white wire in a black sheath, from all the controllers I've seen it's normally a white wire that should be connected to the headlights for the dimming function. And the one marked 'Headlight / dashboard light' looks like the black negative wire that should be going to the DRL. If you've followed the labelling in that image, it's possible you have those 2 swapped around, which would blow the fuse and/or cause them not to light.

[itskenallen]

Originally Posted by oldskool73

I'd not connect that wire to anything yet then, take the headlights completely out of the equation, just connect the controller to the battery and the red & black wires to the DRL and see if they light fully. If they still don't light fully you have a faulty drl and/or controller.

Also, looks to me like in the image you attached they have mislabeled the wires. Looks like the one labeled 'DRL negative' is a white wire in a black sheath, from all the controllers I've seen it's normally a white wire that should be connected to the headlights for the dimming function. And the one marked 'Headlight / dashboard light' looks like the black negative wire that should be going to the DRL. If you've followed the labelling in that image, it's possible you have those 2 swapped around, which would blow the fuse and/or cause them not to light.

Yiu could possibly be right. I thought that wiring diagram was very strange too. Maybe that is the issue. Maybe I've blown the controller now because of that.

Here's the link to the controller I got so u can see for yourself it's wiring.

Look at this on eBay http://www.ebay.co.uk/itm/281928002375