Our automotive experts have put together the following information about the P0804 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 P0804 code.

OBD II Fault Code

  • OBD II P0804

    OBD-II Code The shift lamp will not illuminated is defined as a Upshift/Skip Shift Lamp Control Circuit

    The Shift Lamp is designed to alert the driver that the transmission needs to be put in a higher gear. If the lamp fails to operate as requested by the engine computer (PCM), code P0804 will be stored.

    The shift lamp will not illuminated Symptoms

    • The shift lamp will not illuminated

    Common Problems That Trigger the P0804 Code

    • Instrument cluster failure
    • Shift lamp bulb failure
    • Wiring issue
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