Every once in a while, the check engine lite comes on for my 2005 dodge dakota 4.7 and has a code P0706. Frequently the light goes out and it shifts just fine. When the light is on, the transmission does not shift into overdrive. I believe it is a sensor. Which one? and where will I find it on my truck?

 

The park/neutral position (PNP) switch includes a transmission range switch. The transmission range switch detects the selector lever position when the shift lever is in the N or P shift position and sends a signal to the Transmission Control Module (TCM).

 

basically, the gear selector is out of adjustment