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P0201 on Nissan Pathfinder

Injector Circuit Malfunction - Cylinder 1

Factory diagnostic protocol and troubleshooting wire for fault code P0201 specifically for the Nissan Pathfinder (2022–2026, 3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto)).

Verified OEM Telemetry & Field Repair Tree
Nissan Pathfinder2022–2026
Nissan Pathfinder
SUV3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Pathfinder SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Not Recommended
Critical urgency level
Est. Repair Cost
$150 - $550 (DIY: $40 - $180)
Parts & Labor DIY
Check P0201 On Another Nissan Model:
Diagnose P0201 on Specific Pathfinder Model Year:

1. Symptoms of P0201 on Nissan Pathfinder

When the Engine Control Module (ECM/PCM) on your Nissan Pathfinder (3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto)) logs fault code P0201, drivers commonly observe:

Flashing or steady Check Engine Light on Nissan Pathfinder (3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto))
Severe engine shaking, shuddering, and rough running on Nissan Pathfinder (3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto))
Dramatic loss of acceleration power on Nissan Pathfinder (3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto))
Accompanying code P0301 (Cylinder 1 Misfire) on Nissan Pathfinder (3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto))
Nissan Pathfinder OBD-II Port Location
The 16-pin diagnostic connector is located Driver side lower dash trim near fuse panel. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Nissan Pathfinder

Historical warranty claims and technical repair bulletins for Nissan Pathfinder point to the following failure distribution:

55%
Failed, open, or shorted fuel injector solenoid on Cylinder 1 (Nissan OEM Part)
25%
Damaged or chewed wiring harness to Cylinder 1 injector (Nissan OEM Part)
12%
Loose or corroded injector connector clip (Nissan OEM Part)
8%
Faulty injector driver circuit in the ECM / PCM (Nissan OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Nissan Pathfinder.

3. Step-by-Step DIY Repair Guide for Nissan Pathfinder

01
Check Cylinder 1 Injector Connector

Locate Cylinder 1 fuel injector. Ensure connector is securely clicked in and wires are not frayed. on the Nissan Pathfinder equipped with 3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto).

Required Tool: Flashlight
02
Test Injector Coil Resistance

Unplug connector and measure resistance across the two injector pins. Normal is 11–16 ohms for high-impedance injectors. If open (OL) or shorted (0 ohms), replace injector. on the Nissan Pathfinder equipped with 3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto).

Required Tool: Digital Multimeter
03
Test Pulse Signal with Noid Light

Plug a noid light into the harness connector and crank engine. Rapid flashing confirms PCM driver is pulsing the circuit. on the Nissan Pathfinder equipped with 3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto).

Required Tool: Noid Light Kit
04
Replace Cylinder 1 Fuel Injector

Relieve fuel rail pressure, unbolt fuel rail mounting bolts, gently pull rail up, remove retaining clip, and replace Cylinder 1 injector with new OEM unit with lubricated O-rings. on the Nissan Pathfinder equipped with 3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto).

Required Tool: Fuel Line Tool, Socket Set, Clean Engine Oil for O-rings
05
Clear Trouble Codes & Test Drive

Turn key to ON to prime fuel system, check for fuel rail leaks, start engine, clear DTCs, and verify smooth idle. on the Nissan Pathfinder equipped with 3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Nissan Pathfinder (P0201)

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Direct-Fit Replacement Part

Nissan Pathfinder OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Nissan Pathfinder.

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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

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BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

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Other Common Fault Codes on Nissan Pathfinder

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Nissan Pathfinder:

4. Nissan Pathfinder P0201 FAQs

What causes code P0201 to trigger on a Nissan Pathfinder?

On the Nissan Pathfinder (3.5L DOHC V6 (284HP / 7-Passenger / 9-Speed Auto)), P0201 is most frequently caused by Failed, open, or shorted fuel injector solenoid on Cylinder 1 or Damaged or chewed wiring harness to Cylinder 1 injector.

Where is the OBD-II port located on my Nissan Pathfinder?

On the Nissan Pathfinder, the 16-pin DLC diagnostic connector is located Driver side lower dash trim near fuse panel. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Nissan Pathfinder with code P0201?

No. Dead injector on Cylinder 1 causes immediate dead misfire, severe shaking, and unburned air/fuel delivery imbalance. Given that P0201 carries a Critical severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.