D4D Hilux driving light wiring

Submitted: Monday, Feb 16, 2009 at 10:04
ThreadID: 66025 Views:13866 Replies:4 FollowUps:0
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Hi all,
Where do you connect the wiring to for driving lights. With the wiring wired up as normal for driving lights and the High Beam (HB) power connected to the HB terminal on the headlights, the lights come on with the low beam headlights.
On the rear of the globes have the usual 3 terminals, the two side terminals are live all the time (even when everything is turned off and keys removed) and the top terminal (HB), has no power until you turn low beam on then all 3 are live. With HB turned on all 3 are still live.
So my question is without pulling the column apart where does the power for the HB come from?

I have checked the connection plugs behind the drivers side kick panel and none of them seem to power the lights. I can't find a seperate fuse for the HB so that is out of the question.

If anyone has a D4D hilux with driving lights that come on with HB, can you please look and let me know where the HB power comes from.

Thanks
Dave
Cheers,
Dave
2010 Isuzu FTS800 Expedition camper
2015 Fortuner
Had 72 cruisers in my time

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Reply By: Wayne (NSW) - Monday, Feb 16, 2009 at 10:40

Monday, Feb 16, 2009 at 10:40
Dave,

That sounds like the way the 80 Series was wired.

I have found a Green wire with a black trace under the dash near the steering column. If Toyota have kept the same wiring code and my memory has not faded too much that could be the wire to activate the high beam.

Wayne
AnswerID: 349345

Reply By: Lex M (Brisbane) - Monday, Feb 16, 2009 at 12:52

Monday, Feb 16, 2009 at 12:52
Search is your friend.

The issue of driving light wiring with positive or negative switching has been covered in detail in previous threads.

cheers
Lex M
AnswerID: 349353

Reply By: Member - Oldplodder (QLD) - Monday, Feb 16, 2009 at 17:53

Monday, Feb 16, 2009 at 17:53
Pajero is the same.

Full voltage to the lights, and they are turned on by earthing the relevant light.

So I looked for the pin (of the 3) with the voltage drop when on high beam. Found one was about 9v. Used that as an earth for the spot light relay. Switching current came from the switch I installed on the dash, wired from the parking lights so you can only put on the spots when lights are turned on.

Works for me.
AnswerID: 349387

Reply By: Member - Tour Boy ( Bundy QLD) - Tuesday, Feb 17, 2009 at 10:26

Tuesday, Feb 17, 2009 at 10:26
Thanks for the replies guys,

What I have done is,

on the relay:
30 = fused to battery
87 = to power the lights as normal
85 = 1 side of the globe (not the top High beam terminal)
86 = to the opposite side of the globe (again not the top HB terminal).

That's it, no switch on the dash and the lights come on only with high beam.
No earthing of the relay is needed.
(lucky a professional tried and failed to wire them in the first place or I wouldn't have known how to do it myself)

Cheers
Dave
Cheers,
Dave
2010 Isuzu FTS800 Expedition camper
2015 Fortuner
Had 72 cruisers in my time

Lifetime Member
My Profile  My Blog  My Position  Send Message

AnswerID: 349447

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