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Our automotive experts have put together the following information about the P251C diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P251C code.

OBD II Fault Code

  • OBD II P251C

    OBD-II Code Wiring issue is defined as a PTO Enable Switch Circuit High

    The PTO allows Auxiliary equipment such as a dump bed or plow to be hydraulically operated using the vehicle's transmission. If the PTO switch fails to send a plausible signal, code P251C will be stored. PTO operated features will not work.

    Wiring issue Symptoms

    • PTO system disabled

    Common Problems That Trigger the P251C Code

    • PTO switch failure
    • Wiring issue
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