2008 K9 wiring for rear lights

[roughrider]

Holy cr*p Jochen, that looks scarey!! Let me know how you get on. Maybe the UK & Germany together can overcome the impossible odds!!



I am now treating it as 3 operations. Firstly to fit new separate LED indicators at the rear, and connect to fronts. Secondly, fit turn signal relay [connected straight to battery] between left & right indicator wires, with one way diodes, and a switch on handlebars for Hazard warning lights. Thirdly, find a simple low wattage LED relay [connected straight to battery], and connect both brake light switches [front & rear], and use the redundant brown and violet wires to power the actual brake lights.
During these operations, there is a possibility of blowing the EHC, so i may be asking for more help soon!!!!

:bang:

 

[07bigdog]

Hi. Thanks for the info. Do you mean they have a stop/tail and a separate indicator on each side? I think BDM would be reluctant to help, and i guess it would also entail buying a new EHC.

From the pictures i've seen, that's what it appears to be.

 

[Germanbiker]

What Lewis told me the way to go is to build a kind of "wireplus" only for the brake light which is a complete different system in Europe - you guys in US have the same LEDs for flashing AND braking - we have different ones. Our flashing lights are yellow, brake and rear lights are red....... So we EC-guys got an additional circuit.

Due to this the brake circuit is completly taken away from the EHC, activated by a relay.

That makes sense to me - and that is how Lewis told me. He's running BDs in Germany for years and has not blown any EHC.........

LEWIS - come in here please!!

Jochen

 

[roughrider]

Thanks Jochen.

Please beware of the brake light switches, they run on milli-amps straight to earth. The EHC senses the current, then applies proper power to the brake light. The front is run through a common earth [from the PCB] for the switchgear, and will not accept regular power for the brake light.

:bang:

 

[Germanbiker]

Hmmmm,
the relay just opens the ground for the brake light - so it should not be a problem - is that right??
Did you get my PM concerning the non existent waterproofness of the BD electrics?
Jochen

 

[roughrider]

I think that so long as we don't put normal current through the front brake light switch, we are ok. The brake switches on these bikes are merely sensing wires to earth, which tell the EHC to put normal current to the brake lights.We have had a long look at the wiring diagram that was very kindly linked in to this thread on page 1.
Yes, now i have removed the tank, all the connectors look like they are open to the elements! I will have to have to do something about it!!
Thank you Jochen....

 

[roughrider]

Does anybody happen to have a wiring diagram for the EFi K9?

 

[roughrider]

Thanks Jochen, Lewis and everybody else who helped. The job is now done. I have fitted 2 LED rear micro indicators to the outside of the original rear light housings. The rear lights are now just running/side lights, and brake lights that are un-interrupted by the indicators. The hazard lights work with ignition off and on.
Gave me a headache, but at least i can register it in the UK now!!

:flag: