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Our automotive experts have put together the following information about the P06B4 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 P06B4 code.

OBD II Fault Code

  • OBD II P06B4

    OBD-II Code Powertrain Control Module (PCM) failure is defined as a Sensor Power Supply "B" Circuit Low

    The engine computer (PCM) supplies power to all the sensors on the vehicle. If there is a problem with the power supply to the sensors, code P06B4 will be set.

    Common Problems That Trigger the P06B4 Code

    • Powertrain Control Module (PCM) failure
    • Wiring issue
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