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How To Wire Light Bar To Main Beam

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30 Sep 2022 15:18 #245241 by IzakJackson
Hey!

I've just bought a light bar to put on my 2013 Jimny.

I want to wire it up so that I can toggle the light bar on and off, but it will only turn on with my main beam.

The light bar I bought comes with a harness and I've put together a quick diagram.

Which wire do I need to splice into to link with my main beam please?
https://imgur.com/a/46L4ODi

I'm an adventure filmmaker & photographer exploring in my Gen 3 Jimny.

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30 Sep 2022 16:06 #245242 by DrRobin
I am not sure you wiring diagram is quite correct around the switch, it looks like it has battery positive and negative connected? If you only want the light bar to come on with main beam then the switch needs to be connected to main beam, not the feeds from the battery.

The Jimny headlamps are negative switched (most are positive switched, so the diagrams need a little modification), so come out of the negative on the coil of the relay, in to the switch and then in to the headlamp switched side. The positive side of the relay coil is connected to +12V.

So Pin 86 goes to battery +!2v;
Pin 85 goes to the switch and then to the headlamp switch side
Pin 30 goes to battery +12v
Pin 87 goes to the light bar +
The Light bar negative goes back to ground.

2020 blue SZ5 (one of the last to be registered in the UK)
Ex 2011 Blue Jimny SZ4
Northumberland Jimny Blog

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30 Sep 2022 16:46 #245244 by IzakJackson
Hi Robin,

Thanks for the help!

Yeah, there is a positive & negative wire to the switch - it has a light in the switch so I assumed it was for powering that?

Would this diagram be accurate now?


I'm an adventure filmmaker & photographer exploring in my Gen 3 Jimny.

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30 Sep 2022 17:01 #245245 by DrRobin
The light in the switch might be a problem, is it an LED or ordinary filament bulb?

As I understand it Pins 85 and 86 are the relay coil with 86 the positive and 85 the negative. If that is correct then Pin 86 has to go to positive and Pin 85 goes through your switch to headlamp [switched] negative.

Pin 30 is the relay contact common and Pin 87 is the relay contact N/O (Normally Open).

You therefore need to connect pin 86 to battery positive and take the light bar back to battery negative.

As for the switch do you have detyails of the switch, pins/function and is it LED?

2020 blue SZ5 (one of the last to be registered in the UK)
Ex 2011 Blue Jimny SZ4
Northumberland Jimny Blog

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30 Sep 2022 17:18 #245246 by DrRobin
Without the switch lamp probably something like this
 

 

2020 blue SZ5 (one of the last to be registered in the UK)
Ex 2011 Blue Jimny SZ4
Northumberland Jimny Blog

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01 Oct 2022 07:07 #245247 by IzakJackson
I believe the switch is LED, but unfortunately, there are no markings as to what each input on the switch is for. I believe it is the switch in this image.



Also, the wiring harness came pre-wired with the light bar with negatives going to 86.

I'm an adventure filmmaker & photographer exploring in my Gen 3 Jimny.

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