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What Does P0563 Code Mean?

    OBD-II Code P0563 is defined as a System Voltage High

    The Charging System maintains an ideal vehicle voltage level when the engine is running. If the battery voltage drops below 10 volts, the engine control module (PCM) will set code P0563.

    P0563 Symptoms

    • Engine may stall
    • Some electrical accessories may not operate - i.e. radio

    Common Problems That Trigger the P0563 Code

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

    Common Repairs Needed for the P0563 Code

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