Ambient air temperature sensor high voltage

[trucklogger2]

(07-20-2017 )Hedley Wrote:  On a 09 prostar is should be under your fifthwheel grounded to the chassis. the sensor is PN# 4009860

As this sensor's location is very often a mystery, maybe this pic will be of help along with part #. Maybe the one on some trucks looks something like this..

http://www.ebay.com/itm/Genuine-Cummins-...Zy&vxp=mtr