Anyone know how to test Speed Sensor and ABS sensor?
 

I bought a 2002 IS300 and I got the check engine light today. Anyone know how to test the two Speed sensors on the automatic transmission? I had a OBD scanner read out P0500 = speed sensor malfunction. I have two on the car, not sure which is bad. Trying to test using OHM meter etc. Also, anyone know how to test ABS Speed Sensor via OHM tester? Thanks!