Possible causes
– Faulty Park/neutral position switch
– Misadjusted park/neutral position switch
– Park/neutral position switch harness is open or shorted
– Park/neutral position switch circuit poor electrical connection
– Misadjusted park/neutral position switch
– Park/neutral position switch harness is open or shorted
– Park/neutral position switch circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0709 MAZDA OBD Code Description
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).