Lost Communication With Particulate Filter Pressure Sensor A

Where it lives

For U0601, the part to look at first is the sensor named here.

Check these first

• The CAN bus loses contact with the particulate filter pressure sensor A module
• An open or short in the sensor A signal circuit
• A loose or corroded connector at the pressure sensor
• A missing power or ground feed to sensor A
• An internal failure of the pressure sensor A module

What to do next

1. Read particulate filter pressure sensor A live data on a scan tool
2. Inspect the sensor connector pins for corrosion or damage
3. Check for power and ground at the sensor A connector
4. Test the signal circuit for opens and shorts
5. Replace the particulate filter pressure sensor A if communication stays lost
6. Clear the code and retest

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