Dtc #1- P0720

[chubbysdad]

2000 durango came out with this code using my hypertech programmer. Then I looked up this code and it says output speed sensor circuit. Could anyone tell me where this is located?
thanks Dennis

[hundahunta]

on the rear of the trans driver side. check the resistance of the sensor

[BKBUM]

Can anyone tell me the best way to check this sensor (ex. what the resistance should be), and should it be checked hot, cold or both.
Thanks.