Particulate Filter Pressure Sensor B Circuit Range/Performance

Where it lives

For P245F, the part to look at first is the sensor named here.

Check these first

• A particulate filter pressure sensor B reading outside its expected range
• A partial restriction in the DPF pressure hose
• High resistance in the sensor B signal circuit
• A drifting sensor B element

What to do next

1. Read particulate filter pressure sensor B on a scan tool
2. Compare the sensor B reading to a known good pressure input
3. Check the sensor B pressure hoses for a partial restriction
4. Test the sensor B circuit for added resistance
5. Replace sensor B if the hose and circuit test good
6. Clear the code and retest

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