Can anyone tell me where I can get a decent wiring diagram for my 04 Supercrew FX4? I've just installed a Westin Ultimate Bull Bar with a couple of driving lights and I want to wire them up to come on with the high beam.

 

Can you recieve a 5MB email? If so, fire me a PM.

 

On my 04', the passenger side headlight high beam wire is the Green with a Black Stripe.

 

Looking at my wiring diagram, the high beam relay output wire is the light green and black wire...

 

If you look at this one, you can see the circuit from the high beam relay.
Ignore the recloated fog lamp relay, this was for another thread a few weeks ago.



LG/BK is the one as posted above.
Do you have plans on them being installed with a switch, so you can choose to have them be on with the high beams, or not at all ?
The reason I ask, if you are going to have them on at all times with the high beams, just use the LG/BK wire under the hood to control the Driving lamp relay.
If you want to choose to have them on with the high beam, I can dig up the location of the ground side of the high beam relay in teh cab, and just switch the ground to the relay coil.

 

I have no need to switch them in or out with the high beams. I just plan to wire them up so they come on with high beams everytime.

 

Dougie -- I emailed you back...

 

Exactly what everyone else said. I just did the same thing this past monday with two KC Daylighters behind my grille.

Trigger the relay with the light green w/ black wire going to either headlight and you'll be good to go.