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Home/DTC Codes/Nissan/Altima/2007-2012 2.5L I4/P0201
P0201

Injector Circuit/Open - Cylinder 1

2007-2012 Nissan Altima 2.5L I4

Moderate SeverityPowertrainGeneric (SAE)

Description

Open circuit detected in the cylinder 1 fuel injector circuit.

Symptoms

  • Check Engine Light
  • Misfire cylinder 1
  • Rough idle
  • Loss of power

Common Causes

  • Faulty injector #1
  • Open wiring to injector
  • PCM driver failure
  • Corroded connector

Diagnostic Steps

  1. Test injector #1 resistance (typically 11-18 ohms)
  2. Check wiring continuity
  3. Swap injector with known good cylinder
  4. Check PCM output

Repair Notes

Replace injector #1 or repair wiring.

Related Codes

P0200Injector Circuit/OpenP0301Cylinder 1 Misfire Detected

Other Powertrain Codes

P0201 on Other Vehicles

Nissan 200SX

1995-1998 1.6L I4 GA16DE

Nissan 200SX SE-R

1995-1998 2.0L I4 SR20DE

Nissan 240SX

1995-1998 2.4L I4 KA24DE

Nissan 300ZX

1990-1996 3.0L V6 VG30DE

Nissan 300ZX Twin Turbo

1990-1996 3.0L Twin-Turbo V6 VG30DETT

Nissan 350Z

2003-2006 3.5L V6 VQ35DE

Nissan 350Z

2007-2009 3.5L V6 VQ35HR

Nissan 370Z

2009-2020 3.7L V6 VQ37VHR

Common Questions

What does code P0201 mean on a 2007-2012 Nissan Altima?

P0201 stands for "Injector Circuit/Open - Cylinder 1". Open circuit detected in the cylinder 1 fuel injector circuit.

What are the symptoms of P0201 on a Nissan Altima?

Common symptoms of P0201 include: Check Engine Light, Misfire cylinder 1, Rough idle, Loss of power.

What causes P0201 on a 2007-2012 Nissan Altima?

Common causes of P0201 include: Faulty injector #1, Open wiring to injector, PCM driver failure, Corroded connector.

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