Ihave 2004 r1200gs with servo ABS modulator which is giving me really hard time. I replaced all :(4) pressure sensors, check both motors - pumps, passed bleed test procedure but in few minutes) there is ABS fast blinking and RED triangle on tacho. Reported error code is 24958 Rear control valve defective and the system goes to residual braking on rear circuit.
The abs is workink on the front break and the rear is nit working.
what is and where is the Rear control valve???
Please help me
Thank hou