Code result
P2453
Diesel Particulate Filter Pressure Sensor Circuit Range/Performance
Moderate severity
What it means
The DPF differential-pressure sensor produces a value that is electrically valid but does not match expectations — for example a non-zero reading with engine off or no change between idle and load.
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
Sample hoses clogged or kinked
highOne of the most commonly reported causes for this code — check this first.
Sensor drift
mediumA plausible cause — test and verify before replacing parts.
Sensor element aged beyond calibration window
lowLess common, but worth ruling out after the more likely causes.
Related help
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