BMW K bikes (Bricks)

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Biagio

Biagio
active member
active member
Hi everybody,

I had a run today (first run ever with this bike Smile ), everything was fine but i noticed that the warning red light was always on for the first minutes riding; i thought it was for "cold engine" but it did it also after a quick stop for refueling.

I searched in download section something about troubleshooting for warning light on but I didn't find anything.

Thanks, regards

    

GerryP

GerryP
Silver member
Silver member
Hi Biagio

Most likely the brake light circuit warning light.

This will stay on until you have turned on the brake light at least one time for each brake light circuit.

Just tap each brake as you set off and it should go out.


__________________________________________________
Safe riding Cool,
Gerry Parnham


K1100LT (1993) in Silk Blue/Cream
http://gerryparnham.com
    

nino

avatar
Life time member
Life time member
Its warning light which switch off with brake lever pressed. If not something is wrong with bulbs. Last time on my bike tail bulb was broken and red didnt switch off with brake

    

Biagio

Biagio
active member
active member
Yes, it worked!
But I can't explain what kind of strange system is this scratch

Thanks guys, you're awesome

    

the.postman

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Life time member
Life time member
@Biagio wrote:Yes, it worked!
But I can't explain what kind of strange system is this scratch

Its a system that checks the bulbs in the rear light.
You have to use both front and back brake for it to check the brake light bulb.
If the light stays on after both brakes have been used then there is a fault in that system, if the light goes out and stays out then the system is OK


__________________________________________________
1985 K100 RS   104EA49840092        #0081788     SILVERish (Madison) Prod. date 05/12/84
1984 srx 600
1986 cbr1000f/h
    

charlie99

charlie99
VIP
VIP
its called "Bulb Monitoring Unit " or BMU

the module resides inside the electrics box at the back of under the tank .


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OWarning light always on for the first minutes, what can it be? Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

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