Fault Code P2456
Code meaning, symptoms, possible causes, part number, and estimated cost.
P2456
Diesel Particulate Filter Differential Pressure Sensor 'A' Circuit Intermittent/Erratic
This code indicates intermittent or erratic readings from the Diesel Particulate Filter (DPF) differential pressure sensor 'A'. This can be caused by loose wiring or a sensor that is starting to fail.
Part Details
Part Name
DPF Differential Pressure Sensor
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪400 - ₪1200
Engine Location
Near the DPF
Symptoms
- Check Engine Light illuminated
- Intermittent engine performance
- DPF regeneration issues
- Increased smoke during driving
Possible Causes
- 1Faulty/intermittent DPF differential pressure sensor
- 2Loose wiring or corroded connectors
- 3Damaged or cracked pressure lines
- 4Vehicle electrical system issues
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