BMW R1200R R1150R/T F800 K1200R R1100R/T R1250R RnineT Message Board

Dear all,

my r1200r 2008 have problem with abs, some time abs light up after start the engine and riding about 5km but some time is ok after riding 50km no problem ( on and off )
just buy one set Gs-911 for check problem Fault code is: 240048 and 240049 ( power supply to pump motor fault)
pls help me how to solve that Fault

Thanks all

Can't give you an exact idea of what to do - but it would be interesting to know what your battery voltage is when this happens..

BTW - what'zer name and where are you from?

Is there any possibility at all that the ABS system can apply the brakes on their own--e.g., without me pulling on the front brake lever or pressing on the rear brake pedal? I swear that I've felt it a couple of times when coasting to a stop. It's either that or I was a) imagining things or b) unconsiciously pressing down on the brake pedal.

famousperson wrote:Is there any possibility at all that the ABS system can apply the brakes on their own--e.g., without me pulling on the front brake lever or pressing on the rear brake pedal? I swear that I've felt it a couple of times when coasting to a stop. It's either that or I was a) imagining things or b) unconsiciously pressing down on the brake pedal.

FamousPerson (what'cha name?)

I'd say maybe but unlikely. While there is no "power assist" in the ABS system on our bikes (as the earlier "Whizzy Brakes" had,) the ABS has some sort of modulating piston with a motor of some sorts attached. On early K bike ABS - I heard of one instance where the ABS modulator stuck "on" - applying the brakes and not allowing them to release. In that case - the brake was applied - and then it simply wouldn't release. That's why maybe but unlikely. I can't see a fault scenerio where the ABS modulator could apply braking power and then release it IF you didn't apply some brake power yourself.

As you hypothesized - I'd suspect you're unconsiciously pressing the rear pedal somehow. I actually lowered mine so it was less likely to happen accidently (easy to do - just adjust the linkage between the pedal and master cylinder) since I suspected at times I was hitting mine without intending to.

deilenberger wrote:

famousperson wrote:Is there any possibility at all that the ABS system can apply the brakes on their own--e.g., without me pulling on the front brake lever or pressing on the rear brake pedal? I swear that I've felt it a couple of times when coasting to a stop. It's either that or I was a) imagining things or b) unconsiciously pressing down on the brake pedal.

FamousPerson (what'cha name?)

I'd say maybe but unlikely. While there is no "power assist" in the ABS system on our bikes (as the earlier "Whizzy Brakes" had,) the ABS has some sort of modulating piston with a motor of some sorts attached. On early K bike ABS - I heard of one instance where the ABS modulator stuck "on" - applying the brakes and not allowing them to release. In that case - the brake was applied - and then it simply wouldn't release. That's why maybe but unlikely. I can't see a fault scenerio where the ABS modulator could apply braking power and then release it IF you didn't apply some brake power yourself.

As you hypothesized - I'd suspect you're unconsiciously pressing the rear pedal somehow. I actually lowered mine so it was less likely to happen accidently (easy to do - just adjust the linkage between the pedal and master cylinder) since I suspected at times I was hitting mine without intending to.

Thanks, Don. That's kind of what I suspected. Btw, my name is Peter.