Possible causes

– Faulty Transmission Range Sensor
– Transmission Range Sensor harness is open or shorted
– Transmission Range Sensor circuit poor electrical connection

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P0817 Information for specific makes

P0817 DODGE
P0817 CHRYSLER
P0817 JEEP
P0817 SUBARU
P0817 MAZDA