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What Does P2503 Code Mean?

    OBD-II Code P2503 is defined as a Charging System Voltage Low

    If the battery voltage falls below 10 volts for more than 8 seconds, code P2503 will be stored.

    P2503 Symptoms

    • Engine may not start
    • Engine may stall

    Common Problems That Trigger the P2503 Code

    • Alternator failure
    • Battery failure
    • Wiring issue

    Common Repairs Needed for the P2503 Code

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