Locked rear brakes.
I've recently developed a locked rear brake. Please read and understand the following so we don't go posting the obvious.
I started with lever adjustment. The pedal height was correct and the pivot was not seized.
Next I moved on to the caliper, which was not seized either. The slide pins were well lubricated and the piston pushed back in with ease.
After that, I tried bleeding the rear line and nothing would come from the bleeder. So no fluid is being moved past the ABS unit.
I then removed the master cylinder and checked the ports to find them clear. I then reinstalled it and still no luck. I cracked the banjo open and fluid gushed out when i depressed the brake lever. So this means the master cylinder is ok.
The brake fluid was clear and serviced on time.
The bike only has 18k miles on it.
From my research, it seems that the rear port on the abs unit is blocked. The only test I haven't done is crack the line open before the abs unit and after the master cylinder banjo. I could not imagine a hose to be clogged or collapsed more than the abs unit to be blocked.
I'm hoping someone else out there has had the same problem and can shed some light. Maybe save me from the worst here. I don't want to delete the ABS or replace it. Lose lose situation for me.