Ben
Starting from the front callipers follow the black leads up into the engine bay where they will terminate into a big connector on each side ,these can be pried apart after pulling away from the retaining clips .The resistance readings are taken at the connector half from the calliper lead .
For the voltage readings set the meter to the lowest readings on the AC scale
spin the wheel and the voltage should be similar on both sides.
hope this helps to rectify the fault.
mak

__________________
mark