P0850 on Nissan Pathfinder
Park/Neutral Switch Input Circuit
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Nissan Pathfinder context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for P0850.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What P0850 Means on Your Nissan Pathfinder
P0850 is a diagnostic trouble code indicating: Park/Neutral Switch Input Circuit. This code relates to the transmission system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real Nissan Pathfinder Owner Reports
Source: NHTSA Complaints Database
"Onset of issue was inspection to determine service engine light. code p0850 - indicated park/neutral safety switch input circuit. switch replaced and service engine light back on within 48 hours. returned additional codes related to transmission."
"A) at 9+ miles shifter mechanism not recognizing i was in drive mode or started with i-key error, graduated to obd code p0850 over the next few miles. i was told the fob needed to be programmed."
"I bought a 2014 nissan pathfinder platinum with 9 miles, i drove it home approx. 50 miles and found i was getting i-key system error."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on Nissan Pathfinder
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.