P084F Possible Causes
- Faulty park/neutral switch
- Park/neutral switch harness is open or shorted
- Poor electrical connection in the park/neutral switch circuit
What Does It Mean?
First Diagnose Code P084F
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
P084F Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P084F Description
The Transmission Control Module (TCM) monitors the output signal from the park/neutral switch. The TCM sets the OBDII code when the park/neutral switch output does not meet factory specifications.
OBDII Code P084F – Park/Neutral Switch Output Circuit