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Our automotive experts have put together the following information about the P06A9 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 P06A9 code.

OBD II Fault Code

  • OBD II P06A9

    OBD-II Code Engine may not start is defined as a Sensor Reference Voltage "D" Circuit Range/Performance

    The engine control module (PCM) sends out a 5 volt reference signal to all applicable engine sensors. If the PCM detects an issue with this signal, it will set code P06A9.

    Engine may not start Symptoms

    • Engine may not start

    Common Problems That Trigger the P06A9 Code

    • Engine sensor failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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