Rear brake problem

[my350z8]

I have a 94 Pathfinder SE with 4 wheel disc brakes and ABS. The rear brakes are providing very little stopping power. Any suggestions on what/how to check out the problem.

[Issac]

Well I don't know that model, but the first and obvious thing is to check wear.The second would be to bleed and replace fluid with new, freshly opened correct fluid.The third would be cleaning well.The 4th would be checking for glazing. The rotor could have developed a tempered type finish possibly.My truck has drums rear.I would probably bleed and see what you find.