Our automotive experts have put together the following information about the P256E 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 P256E code.

OBD II Fault Code

  • OBD II P256E

    OBD-II Code Engine may stall is defined as a Engine Idle Speed Selector Sensor/Switch Circuit

    The Idle Control Valve (Idle Speed Selector overseas) controls the engine's idle speed. If the idle speed can not be properly maintained as requested by the engine computer, code P256E will be stored.

    Engine may stall Symptoms

    • Engine may stall

    Common Problems That Trigger the P256E Code

    • Idle Air Control (IAC) valve failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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