hello my car 2011 1.6 hdi acces was giving abs / esp error 6 months ago, the right front abs sensor was corrected after cleaning, but for 2 weeks very intensely, especially when climbing the slopes, first at night when the headlights flickering followed by abs / esp failure after him reinforced steering failure and stop writing comes out and the vehicle stops in 3/5 seconds, cuts off all the electricity, removes the battery and removes it, but the problem can not be found because it erases the faults, it has become more frequent lately, has it happened before? I will be glad if you help.