BMW K bikes (Bricks)

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JonCarter

JonCarter
New member
New member
1993 k1100rs brake system repairs done include...
New master cylinders front and back. Steel brake lines, pads and rotors, front abs pulse sensor. Successful bleeding(no spongy feel). Brakes work very well. Have not replaced the rear pulse sensor. Tried resetting the fault light. All rear bulbs working. Can't get the red triangle telltale to go out. Any suggestions on what to do next. trying to avoid the dealer. Handy with a wrench, not so confident on electrical issues but willing to learn. Please help!!! I want to ride without that triangle staring at me!

    

Ringfad

Ringfad
Life time member
Life time member
Take a look at this

K bike ABS (kbikeparts.com)


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Need info on what to check to correct ABS fault Ir-log10

   ;BMW; K100RS Style Black 1987 105K Km     ;BMW; K1 Black 1993 60K Km     ;BMW;  K1100RS Blue 1994       ;BMW; K1 Blue 1990 25K Miles
    

Dai

Dai
Life time member
Life time member
Red triangle? That sounds like the bulb monitoring unit to me. The ABS warning light is on the speedo face. If it is the BMU, check:

- pilot light (small bulb at the front)
- tail light
- brakes (operate each lever separately until the brake light comes on)

You say the brake light works. Take the bulbs out and check for corrosion on the bulb bodies. This can give a high enough resistance to fool the BMU into thinking that the bulb is faulty. The usual culprit is the rear brake switch down there in shit-catching territory, but you say you've eliminated that?


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1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

92KK 84WW Olaf

avatar
Life time member
Life time member
As far as I know 93 K1100 is ABS1?

If ABS 2 the triangle has no connection to the ABS.

But ABS1 does? If so does it flash? I thought solid meant bulb fail and flash meant ABS?

But a revisit of all bulbs working is advised. Check both front AND rear brake activate the brake light. If only one of them does so, the non functioning brake switch is your fault.


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1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 37,190 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

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