[1stclassic]

I'm installing a set of Acerbis Vision Handguards. They are the ones with LED lights built into them. Electrical is not my thing so I'm struggling to figure out the wiring. I would like the best of both worlds, wired to the ignition but also be able to switch off.
Any help would be greatly appreciated. Where and how to connect to power and ground? What type of switch do I need? How to wire said switch?

 

[Slaine]

The Bike has a Can-Bus system, so if you dont know what you are doing I would leave it to a professional, otherwise you could end up breaking something.

 

[Derek]

The easiest and most accessible place to pick up power for the Acerbis lights would be from the power to the front brake light switch. This is a red/blue wire and is switched by the ignition. It is from fuse #2 which is 15A and supplies the brake lights and the horn, so is easily capable of taking another 0.67A for the Acerbis LEDs. Taking power from here WILL NOT affect the CanBus
You could take the power through a handlebar switch like this

which would allow you to turn them off if you wanted.

 

[Shamone]

Colour wiring diagram

 

[1stclassic]

Thanks folks! Very helpful to get the job done. BTW, while digging around on this project I noticed the fuse box does not contain a spare 10A. It's got spare 15 and 20 and an empty slot. Inspection marks indicate it comes from the factory this way. You may want to add a 10A spare to the empty slot.
Thanks again for the help.

 

[Shamone]

Looking at the wiring diagram am I correct in thinking it has not actually got a CAN Bus?


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[Derek]

Looking at the wiring diagram am I correct in thinking it has not actually got a CAN Bus?


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I think I have to disagree with you about that. There is a pair of wires, grey/green and grey/black (Can Hi, Can Lo?), that connect the dash, ECU, ABS module, the diagnostic socket and the non-existent Blue Tooth module. If not CanBus, certainly a serial data connection.

 

[Shamone]

I think I have to disagree with you about that. There is a pair of wires, grey/green and grey/black (Can Hi, Can Lo?), that connect the dash, ECU, ABS module, the diagnostic socket and the non-existent Blue Tooth module. If not CanBus, certainly a serial data connection.

Ah didn't spot that. I guess it is not as extensive as my BMW, as with that one the CAN bus goes everywhere.
It looks like most parts on the Scrambler are connected traditionally.


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[DucNsb]

I was going to add a couple of PIAA yellow lights to either side of the headlight in the style of an old rally bike. They, unfortunately, are NOT LED and as such will have a decent power draw, anybody have an opinion about the bike's capacity for a set of lights power draw wise?

 

[Derek]

The alternator is rated at 490W output.
Constant power loads will be :-
The Fuel pump - say 90W (going by previous models)
ECU - say 40W (again going by previous models)
The dash - 24W
Either main or low beam - 60W (main beam)
Parking light - 3.1W
Tail light - 3.24W
Number plate light - 0.67W
I have no idea what the ABS CPU uses when it is not active, but assuming it is similar to the engine ECU - say 40W
The other loads - horn, stop light and indicators are only momentary and can be ignored.
So I make that a total of 261W. If you have heated grips you can add another 36W. That takes it to 297W still leaving in excess of 190W available to charge the battery and drive auxiliary lights.

 

[DucNsb]

Holy crap that was helpful! It would have taken me days to dig up that data and calc the loads! Thank you Derek!

 

[greer]

Yes, thank you Derek!! I've been wondering about a heated jacket liner, no worries now.

Sarah