I had the failure and took the controller off and sent to the guy below and got it rebuilt. Basically all the ABS can be done in the similar way as described above, (1) find a way to detach the controller (2) send the controller to someone having the special tools to rebuilt it. (3) Re-install the rebuilt one.
The rebuilding is just to replace the power supply unit in the controller which has design faults. No need to worry about the function.
