Best place for +ve supply that is instant off with ignition?

Got any questions about the BMW's R1200RT/R1250RT's onboard audio, Bluetooth or the Electrical system?
Post Reply
User avatar
gadgetgaz
Posts: 78
Joined: Sun Mar 01, 2020 11:50 pm
Location: UK
Been liked: 2 times
Great Britain

Best place for +ve supply that is instant off with ignition?

Post by gadgetgaz »

I'm looking for a +12V supply under the seats that disconnects instantly with the ignition. All the ones I have found so far stay live for the standard CAN bus 45 seconds.
Does anyone know of one please?
2023 R1205RT LE Sport Blue. Retired motorcycle cop now IT consultant and RoSPA RoADAR examiner.
User avatar
David.
Subscriber
Posts: 8039
Joined: Fri Nov 07, 2014 7:29 pm
Location: North Yorkshire
Bike Model and Year: R1200RT (Camhead) 2012
Been liked: 333 times
Great Britain

Re: Best place for +ve supply that is instant off with ignition?

Post by David. »

How about the on-board fuse, have a look through this thread, http://sgbikerboy.com/2018/03/20/wiring ... 1200gs-lc/
it's for a GS but I believe the RT is the same.

This video supports the same theory, https://www.youtube.com/watch?v=CTpsccTIW6Y just depends which fuse is selected.
Last edited by David. on Sun Mar 29, 2020 7:46 pm, edited 1 time in total.
User avatar
gadgetgaz
Posts: 78
Joined: Sun Mar 01, 2020 11:50 pm
Location: UK
Been liked: 2 times
Great Britain

Re: Best place for +ve supply that is instant off with ignition?

Post by gadgetgaz »

Thanks David but I already tried those fuses. One is permanently live and the other stays live for about 45 seconds after switching off the ignition.
2023 R1205RT LE Sport Blue. Retired motorcycle cop now IT consultant and RoSPA RoADAR examiner.
User avatar
David.
Subscriber
Posts: 8039
Joined: Fri Nov 07, 2014 7:29 pm
Location: North Yorkshire
Bike Model and Year: R1200RT (Camhead) 2012
Been liked: 333 times
Great Britain

Re: Best place for +ve supply that is instant off with ignition?

Post by David. »

Is the supply to the heated passenger's seat (before the rocker switch) switched on/off with the ignition. Might only be live with the engine running.

The tail/brake light could be an option but I think the voltage varies and may not be 12V all the time.
Last edited by David. on Mon Mar 30, 2020 9:33 am, edited 1 time in total.
Post Reply