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Home/DTC Codes/Nissan/Altima/2007-2012 2.5L I4/P2500
P2500

Generator Lamp/L Terminal Circuit Low

2007-2012 Nissan Altima 2.5L I4

High SeverityPowertrainGeneric (SAE)

Description

Low signal on the alternator lamp/exciter circuit, preventing proper charging regulation.

Symptoms

  • Battery light on
  • Low charging voltage
  • Check engine light

Common Causes

  • Broken exciter wire
  • Failed voltage regulator
  • Corroded alternator connector
  • Blown dash bulb

Diagnostic Steps

  1. Check charging system voltage
  2. Inspect alternator connector
  3. Measure exciter circuit voltage

Repair Notes

Repair exciter circuit wiring or replace alternator.

Related Codes

P2501Generator Lamp/L Terminal Circuit HighP2502Charging System Voltage

Other Powertrain Codes

P2500 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 P2500 mean on a 2007-2012 Nissan Altima?

P2500 stands for "Generator Lamp/L Terminal Circuit Low". Low signal on the alternator lamp/exciter circuit, preventing proper charging regulation.

What are the symptoms of P2500 on a Nissan Altima?

Common symptoms of P2500 include: Battery light on, Low charging voltage, Check engine light.

What causes P2500 on a 2007-2012 Nissan Altima?

Common causes of P2500 include: Broken exciter wire, Failed voltage regulator, Corroded alternator connector, Blown dash bulb.

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