Ignition live for trigger wire - 1250GS

(RIP) Sam Johnson

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Guys,

Just fitted a Innovv K2 and don't know how to get a triggered live for the final yellow wire that
goes to the DC converter.
I don't have a Hexcam or other such things, any idea where I can pick up a feed from please?

Thanks
Sam
 
If you're happy cutting and soldering in to the original wiring there's a switch controlled wire from the (I think) TPS fuse. I've done it on two of my bikes and when wrapped with self amalgamating tape is all but invisible that the loom has been modified.

There's a YouTube video of it.
 
Under the rider seat, you will find two fuses in what looks like a blanking plug attached to a bracket. These are both ignition controlled. I think I spliced into the 7.5 amp one. If you don’t want to cut into the wiring to splice, you could use a mini piggy back fuse. If going down this route, you will need to protect the fuses from the elements, as they will no longer fit in the cover.
 
Mr Bean said:
If you're happy cutting and soldering in to the original wiring there's a switch controlled wire from the (I think) TPS fuse. I've done it on two of my bikes and when wrapped with self amalgamating tape is all but invisible that the loom has been modified.

There's a YouTube video of it.
Click to expand...

Is it possible you could post a link to the the Youtube vid please? I've searched on BMW Live feed, BMW switched feed and a number of others, and either I've missed it or I'm putting in the wrong search criteria. TIA
 
I use a posi-tap onto the live cable at the rear of the accessory socket. Unplug the connector from the back of the accessory socket, cut back the black wrap a little to expose the two cables, then clamp the tap onto the live feed:

https://tinyurl.com/yxednzoc

You don't need to cut any of the bikes wiring that way.
 
Just out of curiosity, why do you guys prefer to tap into the wires rather than using the extra AUX/GPS outlet that is hidden under the fairing up front?
 
Hmmmm.... when I tried this on my 1200gs that took ages to switch off. So the relay I connected stayed live for several minutes after I turned the bike off. Did you guys get that? So I tapped into one of the rear brake light cables instead. That switch live goes off after about 10 seconds when you switch the bike off along with the headlight pod.
 
Scrawf41 said:
Hmmmm.... when I tried this on my 1200gs that took ages to switch off. So the relay I connected stayed live for several minutes after I turned the bike off. Did you guys get that? So I tapped into one of the rear brake light cables instead. That switch live goes off after about 10 seconds when you switch the bike off along with the headlight pod.
Click to expand...

If you are talking about tapping into the aux socket cable, then yes, it stays life for a few minutes after ignition is switched off
 
knutk said:
Just out of curiosity, why do you guys prefer to tap into the wires rather than using the extra AUX/GPS outlet that is hidden under the fairing up front?
Click to expand...

I didn't know there was an additional outlet to the one used for the navigator - not seen an extra one mentioned previously.

Splicing in to the loom (rather than a posi-tap) and wrapping with self amalgamating tape doesn't take long and when done well looks factory fitted.
 
Scrawf41 said:
Hmmmm.... when I tried this on my 1200gs that took ages to switch off. So the relay I connected stayed live for several minutes after I turned the bike off. Did you guys get that? So I tapped into one of the rear brake light cables instead. That switch live goes off after about 10 seconds when you switch the bike off along with the headlight pod.
Click to expand...

The delay is 60 seconds, but if the connected unit contains electronics, it may be longer... A regular relay with no electronics ought to turn off after 60 seconds.

The rear light on the newer bikes is pulsed, and the very same light source serves as both til light and brake light, hence, tapping into it is not recommended.
 
Bungleaio said:
This might help at 29 mins in. https://www.youtube.com/watch?v=GsP9l-c8ezc&t=768s

The whole video it pretty good to watch before the installation.
Click to expand...

Hi all. I fitted a camera system to my 1250GS recently (it's a Blueskysea system, not dissimilar to an Innov. I use their car cams and they have been good, so I went with this). It requires a single power supply so, using the video above I tapped off the back of one of the fuses, having first checked that that cable did in fact switch off when powered down (after a short delay).

That said, I left the bike (it's virtually brand new, registered in Jan 22) for a few days and when I went back, the battery was completely flat. Now, I believe the camera hub has a rechargeable battery in it, but regarding the point where I tapped for the power, surely off is off? I can't understand how the camera system has drained the battery. Disconnected the cameras, charged the battery up, and it was all fine. I've recently been away for a couple of weeks and the battery is still fine today after that period (without the cameras connected!).

I don't know much about can-bus, but can a drain on a circuit fool the can-bus into continuing to provide power even after the bike is switched off? I didn't really want to go to the expense of one of those Hex EZcan thingies, as I'm not thinking I'll be adding any other electrical equipment to the bike, so it would be a chunk of change for a one-off requirement.

Any suggestions welcome! Thanks.
 
You can get "smart relays" , they work by only switching on when the voltage is above approx 13.5v . This only happens when the engine is running and charging. You still switch your device by a seperate switch but when the engine stops it goes off because the smart relay cuts the power.
They are about £15 . I used one on my 2022 1250gs to connect aftermarket spot lights. It switches them off after about 10seconds after engine stops. The switched feed under the back of seat stays on for longer and i was wary of upsetting anything else. Smart relay can take power direct from battery if you wish & still switches relay off when voltage drops. Search Aliexpress or eBay for bmw r1250gs smart relay.
 
pbbanks said:
You can get "smart relays" , they work by only switching on when the voltage is above approx 13.5v . This only happens when the engine is running and charging. You still switch your device by a seperate switch but when the engine stops it goes off because the smart relay cuts the power.
They are about £15 . I used one on my 2022 1250gs to connect aftermarket spot lights. It switches them off after about 10seconds after engine stops. The switched feed under the back of seat stays on for longer and i was wary of upsetting anything else. Smart relay can take power direct from battery if you wish & still switches relay off when voltage drops. Search Aliexpress or eBay for bmw r1250gs smart relay.
Click to expand...

Thanks, that might be an option, I'll have a look.
 
Nippy Normans supply Touratech, Wunderlich, Desert Fox and many other makes of accessories.
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