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What Does P0573 Code Mean?

    OBD-II Code P0573 is defined as a Brake Switch "A" Circuit High

    The Brake Switch tells the engine control module (PCM) that the brake pedal is depressed. This switch also controls the brake lights. If the PCM detects the vehicle is slowing down without the brake light switch telling the PCM the pedal is depressed, the PCM will set code P0573.

    P0573 Symptoms

    • Brake lights may not illuminate
    • Cruise control will not operate

    Common Problems That Trigger the P0573 Code

    • Brake switch failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

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