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Home/DTC Codes/Mazda/CX-3/2016-2021 2.0L I4/P2500
P2500

Generator Lamp/L Terminal Circuit Low

2016-2021 Mazda CX-3 2.0L 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

Mazda 626

1993-1997 2.0L I4

Mazda 626

1993-1997 2.5L V6

Mazda 626

1998-2002 2.0L I4

Mazda 626

1998-2002 2.5L V6

Mazda Axela

2013-2019 1.5L I4 P5-VPS

Mazda Axela

2013-2019 2.2L I4 Diesel SH-VPTS

Mazda B2300

1994-1997 2.3L I4

Mazda B2300

2002-2009 2.3L I4

Common Questions

What does code P2500 mean on a 2016-2021 Mazda CX-3?

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 Mazda CX-3?

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

What causes P2500 on a 2016-2021 Mazda CX-3?

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

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