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What Does P0850 Code Mean?

    OBD-II Code P0850 is defined as a Park/Neutral Switch Input Circuit

    The engine computer (PCM) needs to know when the transmission is in Park/Neutral, as this is required before the vehicle can safely be started. The PCM depends on the park/neutral safety switch to communicate when the transmission is in Park/Neutral. If the Park/Neutral Safety Switch fails to operate properly, code P0850 will be set. The engine may be disabled from starting.

    P0850 Symptoms

    • Engine may not start

    Common Problems That Trigger the P0850 Code

    • Neutral safety switch failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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