This happened a few years ago after unplugging the negative battery cable to do some work and once plugged in, the same section of buttons didnt respond. bought a ribbon cable and no success, so ended up replacing the control unit and all good. last weekend, unplugged for TB cleaning and plugged it back and nothing, not even hazzards....any ideas? as it's just these, along with

these two dont work, along with hazzards....all others seem ok
hazard.....