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Our automotive experts have put together the following information about the P226A 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 P226A code.

OBD II Fault Code

  • OBD II P226A

    OBD-II Code Powertrain Control Module (PCM) failure is defined as a Water in Fuel Lamp Control Circuit

    Diesel vehicles have a sensor built into the fuel system to detect excessive water contamination in the fuel. There is a separate warning light "Water in Fuel" that should illuminated for the first few seconds when the engine is started and then go out. If the engine control module (PCM) cannot control the warning light, it will set code P226A.

    Powertrain Control Module (PCM) failure Symptoms

    • Water in fuel warning light doesn't illuminate on initial startup

    Common Problems That Trigger the P226A Code

    • Powertrain Control Module (PCM) failure
    • Water in fuel bulb failure
    • Wiring issue
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