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Our automotive experts have put together the following information about the P255B 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 P255B code.

OBD II Fault Code

  • OBD II P255B

    OBD-II Code Powertrain Control Module (PCM) failure is defined as a PTO Speed Selector Sensor/Switch 2 Range/Performance

    The PTO allows Auxiliary equipment such as a dump bed or plow to be hydraulically operated using the vehicle's transmission. The PTO Speed Selector allows the PTO to be operated at different speeds. If the Speed Selector switch sends back an implausible signal, code P255B will be set and the PTO will be disabled.

    Powertrain Control Module (PCM) failure Symptoms

    • PTO system disabled

    Common Problems That Trigger the P255B Code

    • Powertrain Control Module (PCM) failure
    • PTO speed selector switch failure
    • Wiring issue
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