Fault red light code on 1999 Porsche Boxster

Can someone tell me my car have a fault code (O) beside hand bake light, what is this mean? Please help

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
I believe that light is a "low brake material warning light". Have your brake linings and brake fluid level checked.