P245E Fault Code

ISO/SAE reserved

• What does that mean?
• Symptoms
• Causes
• Solutions

The P245E fault code refers to a problem with the diesel particulate filter (DPF) pressure sensor circuit. This code is part of the ISO/SAE reserved codes, indicating that it is standardized across many manufacturers. The DPF is crucial for reducing emissions by filtering out soot and particulates from the exhaust gases of diesel engines. A fault in this sensor can prevent proper regeneration of the DPF, leading to increased emissions and poor engine performance.

What are the symptoms of the P245E code?

Drivers may experience various symptoms when the P245E code is triggered, including:

• Illuminated check engine light on the dashboard.
• Decreased engine performance, particularly during acceleration.
• Increased exhaust emissions, potentially leading to environmental compliance issues.
• Noises from the exhaust system that indicate pressure irregularities.
• Possible reduction in fuel efficiency due to the engine's attempt to compensate for the sensor issue.

What causes the P245E code?

The most common causes of the P245E fault code include:

• A malfunctioning DPF pressure sensor that may be providing incorrect readings.
• Blockages in the DPF itself, which can cause abnormal pressure levels.
• Wiring issues, such as damaged or corroded connectors and wires associated with the sensor.
• Failed or degraded DPF unit, which may not function adequately, leading to sensor faults.

How to fix P245E?

To resolve the P245E fault code, the following steps should be considered:

• Inspect the DPF pressure sensor and its wiring for damage or corrosion, replacing any faulty components.
• Clean the DPF to remove any soot build-up that may be causing pressure discrepancies.
• Clear the fault code using an OBD-II scanner after making repairs and observe if it returns.
• Check for any additional related codes, as there may be underlying issues contributing to the sensor malfunction.
• If the DPF is severely damaged, replacement may be necessary to restore proper function.