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What Does P2500 Code Mean?

    OBD-II Code P2500 is defined as a Generator Lamp/L-Terminal Circuit Low

    The Alternator recharges the Battery when the engine is running. The Alternator is controlled by the engine control module (PCM). If the PCM detects an incorrect signal from the Alternator, the PCM will set code P2500.

    P2500 Symptoms

    • Engine may not start
    • Engine may stall

    Common Problems That Trigger the P2500 Code

    • Alternator failure
    • Battery failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

    Common Repairs Needed for the P2500 Code

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