Thanks everybody for your replies.
1. The symptom is that the master cylinder front break very hard. So hard, that it's actually not safe to ride.
2. According to the service manual, I need to replace the break fluid every 15k miles.
I replace the fluid every time I replace the pads (8k~).
Did you already pay for work done before the ABS failure diagnosis? If not then you might be getting a deal.
I didn't paid nothing yet. The breakdown is:
$260 for front and rear pads + fluid replace, and bleed air out from the system.
$140 for an hour of diagnostic (bleed air out from the ABS unit).
$60 for 30~ minutes for swapping to another master cylinder front break.
The desk guy at the service shop said that everything will cost $2300.
So Abs unit + labor is $1840.
What do you mean be "I might be getting a deal"?
I came to the service shop in order to replace the pads AND to solve the issue, but this cost sounds VERY expensive.
Another thing that I do not understand:
If there is a problem in the ABS unit, the light should turn on, no?
And if it's a ABS unit problem, the rear break should also needs to be hard to press?
An important information:
I have an after market master cylinder (with a Italy flag on it).
When I purchased the motorcycle with this after market item, it was soft as butter.
Thinks started to be hard when I replaced the break pads.
BTW, Does 2014 Kawasaki ninja 1000 has an open or close system?