Faulty Park/Neutral Position (PNP) Switch
Misadjusted Park/Neutral Position Switch
Park/Neutral Position Switch harness is open or shorted
Park/Neutral Position Switch circuit poor electrical connection
Engine Light ON (or Service Engine Soon Warning Light)
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). The Diagnostic Trouble Code (DTC) will set if the transmission range switch detects the selector lever position and sends a signal to the TCM.