Particulate Filter Pressure Sensor A Circuit

Where it lives

For P2452, the sensor sits on the circuit this code reports. The description of P2452 reports a fault at the sensor.

Check these first

• A failed particulate filter pressure sensor A
• An open or short in the sensor A circuit
• A backed out pin at the sensor A connector
• A disconnected or cracked sensor A hose

What to do next

1. Read particulate filter pressure sensor A on a scan tool
2. Test the sensor A circuit for open and short faults
3. Inspect the sensor A hoses for cracks or disconnects
4. Check the sensor A connector pins
5. Replace the pressure sensor A if the plumbing and wiring are good
6. Clear the code and retest

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