Review on Standard Motor Products ALS252 Sensor by Craig Sethuraman

Works for 2007 Grand Caravan. I'm not sure how long it will take though. The price was right. This can be a little trick for diagnosing without an oscilloscope. You cannot rely on ohm values alone. If you have a DMM, it's best to check the sensor on the connector and make sure 12 volts DC is present. Then set the meter to AC voltage on the lowest scale. Rotate the hub. You should see tiny fluctuations in the AC voltage range. if not, that's bad. With a microscope you will see a rectangular waveform.