Build yourself a RC hall sensor tester. Very simple and it costs less than a dime. Here is how:

* Things you need to have: One servo cable, one 1k ohms resister, one LED and a solder iron, lead.

1. Connect 1K Ohms resistor to the signal wire ( White or Yellow )

2. Connect other end of the resistor to the Anode of the LED ( Long lead )

3. Connect the Cathode of the LED to the black wire

* Testing:

Connect your battery to the female connector and the male connector of the servo cable to the sensor. Rotate the crankshaft. The LED will light up when it