Nissan Pathfinder: Common Codes & Fixes

Real-world diagnostic data for the Nissan Pathfinder. These are the codes techs see most often. Tap any code for the full vehicle-specific fix and the exact part.

17 codes have specific fixes for the Nissan Pathfinder
B1404 On Pathfinder and Xterra B1404 is typically the mode door motor that directs airflow between floor, defrost, and vent. 2004-2015 · Easy DIY · 1 hour P0019 On 4.0L V6 Frontier/Xterra/Pathfinder, P0019 commonly points to the Bank 2 exhaust cam sensor reluctor or a loose VVT sprocket bolt. 2005-2015 · moderate DIY · 2-3 hours P0021 Bank 2 is the firewall-side head on the VQ40. 2005-2019 · Moderate DIY · 1-2 hours P0036 Nissan downstream O2 sensor heater failure usually means the sensor itself is dead. 2007-2019 · easy DIY · 30 min - 1 hour P0050 The bank 2 upstream O2 sensor on Nissan VQ-series V6 engines is located on the rear exhaust manifold, which makes access difficult. 2007-2019 · moderate DIY · 1-2 hours P0103 High MAF signal can be caused by a contaminated sensor element or an electrical short in the wiring. 2002-2015 · Easy DIY · 10-20 min P0129 Barometric pressure sensor (integrated into MAP on most VQ35) reads too low. 2005-2015 · Easy DIY · 20-30 min P0214 Older Nissan VG30/VG33 engines have a cold start injector on the intake plenum that sets P0214 when it sticks or leaks. 1990-2000 · Moderate DIY · 1-2 hours P0332 Bank 2 knock sensor low signal. 2002-2015 · Moderate DIY · 2-3 hours P0346 Replace Bank 2 cam sensor (rear of engine, firewall side). 2005-2015 · moderate DIY · 2 hours P0391 Bank 2 (passenger side) camshaft position sensor B circuit fault. 2005-2015 · Moderate DIY · 45-60 min P0448 On larger Nissan vehicles, the vent valve harness runs a longer path and is more susceptible to chafing. 2013-2020 · moderate DIY · 1-2 hours P0455 The EVAP leak detection pump (mounted near the charcoal canister) fails on Nissan vehicles around 80-100K miles. 2008-2019 · moderate DIY · 1 hour P0700 P0700 on Nissan CVT transmissions is a red flag for CVT failure. 2005-2017 · easy (fluid), hard (CVT replacement) DIY · 30 min (fluid drain and fill) P0765 Solenoid D on the RE5R05A controls the 4-5 shift. 2005-2017 · Advanced DIY · 4-6 hours P3182 On these CVT-equipped Nissans, P3182 often pairs with transmission slip codes. 2014-2020 · Advanced DIY · Diagnostic only U1000 On Nissan trucks, U1000 frequently appears after a battery disconnect or when the battery is low. 2008-2020 · easy DIY · 30 min - 1 hour

Frequently Asked Questions

What are the most common check engine light codes on a Nissan Pathfinder?

The most commonly reported OBD-II codes for the Nissan Pathfinder include B1404, P0019, P0021, P0036, P0050. Each code indicates a specific issue -- tap any code above for the full diagnostic breakdown.

How much does it cost to fix a check engine light on a Nissan Pathfinder?

Repair costs vary by code. Many Nissan Pathfinder fixes like gas cap replacement, sensor cleaning, or spark plug changes are under $50 in parts and can be done at home. More complex repairs like catalytic converter or transmission work can run $500-$2,000+ at a shop.

Can I drive my Nissan Pathfinder with the check engine light on?

It depends on the code. A steady check engine light usually means you can drive short distances safely. A flashing check engine light means stop driving immediately -- continued driving can cause serious engine damage. Scan the code first to know what you are dealing with.

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