P2453: Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance
2 vehicles · 2 makes · $150-$1,600 repair
Most Reported On
P2453 is an OBD-II diagnostic trouble code meaning “Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance.” This code applies to diesel vehicles and means the engine computer detected that the diesel particulate filter (DPF) differential pressure sensor "A" signal is out of its expected range or behaving implausibly. This sensor monitors pressure across the DPF to track soot loading and trigger regeneration. An out-of-range reading means the computer can't reliably gauge how clogged the filter is, which can disrupt regeneration timing. It is generally not an immediate hazard, but if unresolved it can lead to DPF clogging and related emissions faults. This code is most commonly reported on 2007-2014 Suzuki SX4 (Base, GL, GLX, AWD), and 2012-2016 Land Rover Defender (90, 110, 130), with repair costs ranging from $150 to $1,600.
Common Causes
Typical Repair Cost
Based on 2 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
This is a powertrain code, so a basic OBD-II reader can read it. These read P2453.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple code reader for engine (P) codes on many compatible OBD-II vehicles. It does not support every vehicle or hybrid/EV application, and it does NOT read body, chassis or network codes; confirm exact-vehicle compatibility before buying.
- Read & clear engine (P) codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth scanner with a companion app that reads beyond the engine module — ABS, SRS and transmission — plus manufacturer-specific codes on many vehicles.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X V3.0 Elite OBD-II Scanner
by LAUNCH
Handheld scanner covering the four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level tablet with all-system coverage and bi-directional control, so you can command a module rather than only read it.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
What you can do yourself, and what needs a shop
Reading the code, clearing it, and watching whether it returns is a driveway job with the right scanner. These steps are not:
- Module programming or software updates — needs the manufacturer software or a J2534 pass-through with a paid subscription.
- Replacing a control module — most are VIN-programmed and immobilizer-registered, so a new one does nothing until it is coded to your car.
- Airbag/SRS component work — a stored fault can deploy a live device.
If the vehicle is still under warranty, check for an open recall or technical service bulletin before buying anything — the repair may already be covered.
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FAQ
What does P2453 mean?
P2453 stands for "Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance." This code applies to diesel vehicles and means the engine computer detected that the diesel particulate filter (DPF) differential pressure sensor "A" signal is out of its expected range or behaving implausibly. This sensor monitors pressure across the DPF to track soot loading and trigger regeneration. An out-of-range reading means the computer can't reliably gauge how clogged the filter is, which can disrupt regeneration timing. It is generally not an immediate hazard, but if unresolved it can lead to DPF clogging and related emissions faults.
What are the most common causes of P2453?
The most common causes of P2453 are: Faulty DPF differential pressure sensor, Clogged, kinked, or cracked sensor pressure hoses, Soot buildup blocking the sensor ports, Wiring or connector issues at the sensor, Actual DPF restriction skewing sensor readings, Moisture or contamination in the connector. The specific cause varies by vehicle.
How much does it cost to fix P2453?
Repair costs for P2453 range from $150 to $1,600, depending on the vehicle and root cause.
Which vehicles are affected by P2453?
Au7o has documented P2453 across 2 vehicle models from 2 manufacturers: Land Rover, Suzuki.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.