Code result
P2455
Diesel Particulate Filter Pressure Sensor Circuit High
Moderate severity
What it means
Voltage on the DPF pressure sensor line exceeds the upper threshold. Usually a short to supply or an open ground on the sensor.
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
Signal shorted to supply
highOne of the most commonly reported causes for this code — check this first.
Sensor ground open
mediumA plausible cause — test and verify before replacing parts.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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