OBD-II code · Powertrain (generic, extended)
P2453 Diesel Particulate Filter Pressure Sensor Circuit Range/Performance
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 with P2453?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySample hoses clogged or kinked
- PossibleSensor drift
- Less likelySensor element aged beyond calibration window
Symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Dpf Differential Pressure Sensor, Dpf Pressure Sensor Wiring
Related codes
- P2452Diesel Particulate Filter Pressure Sensor Circuit
- P2450EVAP System Switching Valve Performance/Stuck
- P2451EVAP System Switching Valve Stuck Closed
- P2454Diesel Particulate Filter Pressure Sensor Circuit Low
- P2455Diesel Particulate Filter Pressure Sensor Circuit High
- P2456DPF Differential Pressure Sensor Circuit Intermittent
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.