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Two things spring to mind. You only need to post a topic once. Please feel free to read the forum guidelines again.
A weak battery will throw all sort of erroneous codes. All Rover take a pristine perfect charging system at all times. If your battery is old, weak or has a single dirty connection any where in the circuit your battery will not be accepting your alternator's attempt to charge. Likewise a weak alternator can cause voltage issues. Clear all the codes, make sure your battery is charged over night and reread your codes. Chances are many of those codes will disappear because most of them contradict each other. Your sensor can not provide both low and high signals in the same reading unless these are historic codes conflicting.
A weak battery will throw all sort of erroneous codes. All Rover take a pristine perfect charging system at all times. If your battery is old, weak or has a single dirty connection any where in the circuit your battery will not be accepting your alternator's attempt to charge. Likewise a weak alternator can cause voltage issues. Clear all the codes, make sure your battery is charged over night and reread your codes. Chances are many of those codes will disappear because most of them contradict each other. Your sensor can not provide both low and high signals in the same reading unless these are historic codes conflicting.