DRL Fuse and Fuse Tap Help (1 Viewer)

[40Man]

I recently installed Stedi LED Fogs on my 16 LC which have a halo ring DRL. The instructions want you to hook the DRL wire to an acc fuse, which is fine, and the Stedi controller box dims or turns off (see pic below) the DRLs when the low beam is on due to a separate tap.

However, this keeps the Stedi DRL Halos on at all times when the car is on (or optionally off when low beam is on), and I'd like to only have them on when the OEM DRLs are lit.

There is a DRL fuse under the hood, but using a fuse tap seems to send power to the tap at all times, even with ignition off (not what I expected). I understand I may need to tap either the strip led marker lights (not sure there is a separate fuse for them under hood), or perhaps a wire tap to the correct wire on the headlight relay. I think the relay in the fuse box sends a signal to dim the high beam which is the actual DRL, but am hoping someone else has run into this and has a simple solution before I start mapping out wire schematics.

TIA

 

[tbisaacs]

depending on year, the OEM DRL are control by a voltage drop on the way to the high beams.

Headlight Retrofit for 2008 - 2011 LX570

@grinchy any particular reason why you want to operate your DRLs in conjunction with high beams? The high beams ARE the DRLs. In a halogen system the bulb is the same illuminated with lower voltage producing less light. The problem can be non-dimming LEDs or an electrical system that requires...

forum.ih8mud.com

 

[40Man]

depending on year, the OEM DRL are control by a voltage drop on the way to the high beams.

Headlight Retrofit for 2008 - 2011 LX570

@grinchy any particular reason why you want to operate your DRLs in conjunction with high beams? The high beams ARE the DRLs. In a halogen system the bulb is the same illuminated with lower voltage producing less light. The problem can be non-dimming LEDs or an electrical system that requires...

forum.ih8mud.com

Thanks, yes I understand that, and I believe tapping one of the wires in the h/l relays may get me the result I want, just need to find the wire the activates the voltage drop to the high beam in the headlight relay I would think.

Either that or tap the LED strip that I believe only turns on with the DRL.

 

[gaijin]

Either that or tap the LED strip that I believe only turns on with the DRL.

On my 2013 LC200, the LED strip on the lower edge of the headlight housing turns on with the parking lights - not with the DRL's. Most probably the same with your 2016 LC200.

HTH

 

[Julian73]

2016+ wiring diagrams are a bit different than early 200's The DRL's are OEM control'ed by the Red wire to the headlights (connector A47 or A 51, B-11). This is not relay controlled but rather by the Main Body ECU so only way to tap into its 'logic" would be through this Red output wire.