Code result
P2452
Diesel Particulate Filter Pressure Sensor Circuit
Moderate severity
What it means
A general electrical fault on the DPF differential-pressure sensor circuit. Without a valid pressure reading the ECU cannot estimate soot load and may inhibit regeneration.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
DPF pressure sensor failed
highOne of the most commonly reported causes for this code — check this first.
Sensor sample hoses clogged with soot
mediumA plausible cause — test and verify before replacing parts.
Related help
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