DPF Pressure Sensor Circuit Range/Performance
The P245F code indicates that the Diesel Particulate Filter (DPF) pressure sensor circuit is reporting a signal that is out of the expected range or not performing correctly. This sensor monitors exhaust backpressure before and after the DPF to determine soot load. A faulty sensor, wiring issues, or a clogged DPF can trigger this code, potentially leading to reduced engine performance and increased emissions.
01. Most Common Causes
- Faulty DPF pressure sensor
- Wiring or connector issues in the sensor circuit
- Clogged or damaged DPF
- Exhaust leaks near the sensor
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine power or limp mode
- Poor fuel economy
- Excessive exhaust smoke
03. Step-by-Step Diagnosis
Step 1: Scan for additional codes and freeze frame data.
Step 2: Inspect the DPF pressure sensor and its wiring for damage or corrosion.
Step 3: Test the sensor voltage and compare with manufacturer specifications.
Step 4: Check for exhaust leaks or DPF blockage using a pressure gauge.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it may lead to DPF damage or reduced engine performance. Short trips to a repair shop are acceptable.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150 for diagnosis and sensor replacement, but can be higher if the DPF needs cleaning or replacement.