The speed sensor (vss) is on the tranny itself. Autos have 2 I beleive.Yes, and OBDII scanner is a big help. If you are 97 or older you can do the key dance.
Member # 751FOUNDER of the Central Cali chapter of 2GNT!(I got kicked out after I refused to go Cow tiping) - Hehehe you know who this is for