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Home/DTC Codes/Fiat/Cronos/2018-2025 1.3L I4 Flex Firefly/P2500
P2500

Generator Lamp/L Terminal Circuit Low

2018-2025 Fiat Cronos 1.3L I4 Flex Firefly 🇨🇦

High SeverityPowertrain

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

Fiat 124 Spider

2017-2020 1.4L I4 Turbo

Fiat 126p Maluch

1973-2000 0.65L I2 Air-Cooled

Fiat 126p Maluch

1987-2000 0.7L I2 Air-Cooled

Fiat 500

2012-2019 1.4L I4

Fiat 500 Abarth

2012-2019 1.4L I4 Turbo

Fiat 500 BR

2011-2020 1.4L I4 Flex Fire Evo

Fiat 500 PL

2007-2025 1.0L I3 Hybrid FireFly 70

Fiat 500 PL

2007-2025 1.2L I4 Fire 69

Common Questions

What does code P2500 mean on a 2018-2025 Fiat Cronos?

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 Fiat Cronos?

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

What causes P2500 on a 2018-2025 Fiat Cronos?

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

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