Need some advice how to connect a light bar to come on with hi-bean please - Jeep Garage - Jeep Forum

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Old 09-03-2015, 06:26 AM
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Need some advice how to connect a light bar to come on with hi-bean please

Hi I've fitted an LED bar to the jeep, and to comply with laws here (WA) it must be hooked up so it comes on with the high beams. Just wondering if there is anything special required to do this, given the high beam can be set to come on automatically in this vehicle


Cheers, Simon

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Old 09-03-2015, 06:39 AM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

Simon the auto high beam will not activate when there are oncoming lights, so this feature creates no issue with compliance. Is that what you meant?

Cheers,
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Old 09-03-2015, 06:51 AM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

Hi Steve thanks, I should've mentioned that whilst the bar is mounted, it's not yet connected.

What need to know is how I can connect it up so it comes on both with the auto-hi and manual hi-beam.

As you can no doubt tell by now I'm not much of a hands-on car guy.. Until recently I spent too much time driving PC's and servers, but having now bolted a few things onto my jeep, I've become a lot more interested. This forum has been a real help too 👍


Cheers, Simon
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Old 09-03-2015, 06:59 AM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

If you're picking up the trigger for your lightbar relay off the high beam circuit, it will work in all instances that the high beam does.

Did you have any preference for where to tap in? Behind the headlight, under the fuse box, etc...
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Old 09-03-2015, 07:17 AM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

No idea really Steve, I'd say I'm just looking for the easiest way really.


Cheers, Simon
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Old 09-03-2015, 07:32 AM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

Easiest would be to use a fuse tap like a Narva "Add A Circuit" under the high beam fuse. Plug and play, and totally reversible. Second easiest to tap on to the wiring behind the headlight. Third easiest is to tap into the wiring under the fuse box, which would be how I'd probably do it. It'd be likely that there's a suitable "high amp" feed under there for the relay switched lightbar power too.

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Old 09-03-2015, 08:13 AM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

Here is the info for tapping into the wiring behind the right headlight. This will power the relay.

WK2 spotlight connection
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Old 09-03-2015, 08:30 AM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

Thanks gents. Steve I checked out the Narva piggyback device, it seems to be rated at 20A. The light bar sucks down 13.3A @ 13.5V according to the doco, so would there be a likelihood of it overloading, with both that and the highbeam on? I'm keen to get it right the first time.


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Old 09-03-2015, 08:40 AM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

Good that you're not just accepting information as it comes... respect for checking that out.

The Add A Fuse only supplies the original high beam and the current to energise the relay. It doesn't power the lightbar. This needs to derive power from a "high amp capable" supply, via a fuse and then the switching contacts on the relay.

So when high beam is active, the Add A Fuse supplies a small amount of current, which turns on the relay, which enables current to flow between the high amp supply and lightbar.

If that's unclear I'll have another shot...

Cheers,
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Old 09-03-2015, 10:28 AM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

Quote:
Originally Posted by sironic View Post
Thanks gents. Steve I checked out the Narva piggyback device, it seems to be rated at 20A. The light bar sucks down 13.3A @ 13.5V according to the doco, so would there be a likelihood of it overloading, with both that and the highbeam on? I'm keen to get it right the first time.


Cheers, Simon
When I installed my light bar I included a switch on the dash so you can have only the high beam if required.
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Old 09-03-2015, 07:49 PM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

Yes I'm also looking to do this Salmo, it appears to be required by law now in WA


Cheers, Simon
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Old 09-03-2015, 10:52 PM
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Re: Need some advice how to connect a light bar to come on with hi-bean please

Good practice and probably handy, but I don't believe that the ability to disable the additional lighting is necessary for compliance. As long as the additional lighting turns off with high beam Mr Plod should be satisfied. Happy to be corrected if I've missed something.

Edit: incorrect... isolator switch definitely required.

The "new" WA initiatives are regarding lights which can be energised any time, and which are mounted too high. My understanding is that neither of these have ever really been within the law. Previously lights were supposed to be only fitted in pairs, and this requirement has now been relaxed somewhat to allow single lightbars provided that they are mounted centrally.

I'll see if I can dredge up the relevant document...

Edit: http://www.transport.wa.gov.au/media...VS_IB_132A.pdf

Cheers,
Steve
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