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Offline cycler

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Re: Low beam shut-off cure... maybe.
« Reply #500 on: September 27, 2017, 05:09:33 AM »
After almost 2 weeks of trial and error and pming forum members and annoying them Im happy to say i finally did the low beam cure



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Online CrazyBiker

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Re: Low beam shut-off cure... maybe.
« Reply #501 on: September 29, 2017, 10:53:21 PM »
It seems now the high beam is aimed too high. Maybe something messed up after I removed the headlight??? Need to adjust it back down.
« Last Edit: September 29, 2017, 11:01:46 PM by CrazyBiker »
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Offline Zig Zag

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Re: Low beam shut-off cure... maybe.
« Reply #502 on: February 12, 2018, 12:06:51 AM »
I had put this mod on the back burner. I dont seem to ride at night that much any more, no hurry.
I finally got my copy of the Hanes service manual with wiring diagrams. Started poking around.
I apologize if I missed a post and this was previously discussed.
Low beam is controlled by the load shedding relay. Which is controlled by the instrument panel control unit. The relay is fed by F4.
Meanwhile.
There are two switched circuits (by main relay) F6 and F8.
F6 is fused @7.5A and feeds the number plate light and the optional accessories plug.
F8 is fused @4A.
The yellow wire coming from the load shedding relay going to the head light runs right by the feed for the plate light.
I decided to bypass the load shedding relay and feed the low beam from the plate light circuit.
The low beam will come on when the ignition is turned on and stay on, like the plate light, when turned off. I know some wont care for this.
I confirmed the yellow wire did indeed feed the low beam with a continuity test before cutting!
Six inches of wire, two splices and capped the wire coming from the load shedding relay.
Buttoned up.
Ops check good.

You should remember that its peace of mind youre after and not just a fixed machine.
Robert Persig

Online SimonUK

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Re: Low beam shut-off cure... maybe.
« Reply #503 on: February 12, 2018, 12:09:45 AM »
Good job.  :152:

Photos would be nice

Offline Zig Zag

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Re: Low beam shut-off cure... maybe.
« Reply #504 on: February 12, 2018, 12:23:56 AM »
*Originally Posted by SimonUK [+]
Good job.  :152:

Photos would be nice

I will put something together and try to post some pics!
You should remember that its peace of mind youre after and not just a fixed machine.
Robert Persig

Offline rdecae

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Re: Low beam shut-off cure... maybe.
« Reply #505 on: February 21, 2018, 07:40:00 PM »
my Haynes manual has not arrived.  when taking the dust cap off the low beam, do you twist clockwise, or counter-clockwise?  and you need to "pull" on it, or just twist and it will release.  thanks
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Online SimonUK

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Re: Low beam shut-off cure... maybe.
« Reply #506 on: February 21, 2018, 07:52:08 PM »
*Originally Posted by rdecae [+]
my Haynes manual has not arrived.  when taking the dust cap off the low beam, do you twist clockwise, or counter-clockwise?  and you need to "pull" on it, or just twist and it will release.  thanks

counter-clockwise about 1/8 of a turn and it should just be loose.

Offline rdecae

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Re: Low beam shut-off cure... maybe.
« Reply #507 on: February 21, 2018, 08:25:15 PM »
ok, thanks
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Offline Shasta McNasty

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Re: Low beam shut-off cure... maybe.
« Reply #508 on: May 04, 2018, 11:58:01 PM »
I have been trying to figure out a purely "software" fix for this issue for a long time, but so far without success.  I have been able to do some stuff with ISTA/P (a maintenance and software "coding" tool for BMW cars and bikes) but not that. 

I am about ready to give up and do it in hardware.  However, all the workarounds I see here are on the "post-relay" side, or from the accessory (CANBUS) connector, and bypass the load-shedding relay.  I would like to keep the load-shedding function on the low-beam. 

I was looking at the wiring diagrams in the Haynes manual (page 8-30) and it seems  that I could put a diode from pin 7  to pin  1 of the instrument panel ECU (or equivalently between pins 5 and 10 of the relay box).  This would connect pin 2 of the high-beam relay (through a diode to prevent back-feed) to pin 2 of the load-shed relay.  Therefore the load-shed relay would be energized under the "normal" circumstances (i.e. when the low-beam is activated) and also energized when the high beams are activated.

Has anyone tried this approach?

Offline Zig Zag

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Re: Low beam shut-off cure... maybe.
« Reply #509 on: May 05, 2018, 02:34:48 PM »
When I tried controlling the load shedding relay from F6 I got a light on the dash.
I am running the low beam straight off of F6.
If you try it let us know how it goes.
« Last Edit: May 05, 2018, 02:40:54 PM by Zig Zag »
You should remember that its peace of mind youre after and not just a fixed machine.
Robert Persig

 


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