Nah that is totally not the best way to check .
Owners with ABS faults have in the past removed the bulb so that no fault is seen .
There are two ways to check easily .
Lift up your back seat , there should be two black 2 core wires (one from each side) , that come up from underneath through gromits about 1 inch wide. These meet either side of the centre with two connectors. These are the rear sensor cables .
Open your bonnet , you should see a rectangular metal box just right of centre at the rear of the engine bay . a number of brake pipes shoul com straight out of the front . [This is the ABS pump] .