Water in Fuel Sensor B Circuit High

Where it lives

For P238D, the sensor sits on the circuit this code reports. The description of P238D reports a fault at the sensor.

Check these first

• A short to voltage on the water in fuel sensor B signal wire
• An open in the water in fuel sensor B ground circuit
• A failed water in fuel sensor B
• Corrosion in the water in fuel sensor B connector

What to do next

1. Read water in fuel sensor B voltage on a scan tool
2. Test the water in fuel sensor B signal wire for a short to voltage
3. Check the water in fuel sensor B connector and ground
4. Replace water in fuel sensor B if the circuit tests good
5. Clear the code and retest

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