What is OBD-II Code P2460 – Particulate Filter Pressure Sensor B Circuit Low

What is OBD-II Code P2460 – Particulate Filter Pressure Sensor B Circuit Low

OBD-II codes are essential for monitoring and troubleshooting vehicle systems. One of the most common codes that car owners may face is the P2460 code. This code indicates a problem with the particulate filter pressure sensor B circuit. In this article, we will discuss what this code means, how to diagnose it, and possible remedies.

What is OBD-II Code P2460?

OBD-II Code P2460 is related to the particulate filter pressure sensor B circuit low. It indicates a problem in the particulate filter pressure sensor, which is responsible for measuring the pressure inside the particulate filter. The particulate filter is a crucial component of the vehicle’s exhaust system. Its purpose is to reduce exhaust emissions by trapping the soot and other particulate matter produced by the engine.

The particulate filter pressure sensor is an essential element in detecting the efficiency of the diesel particulate filter (DPF). The DPF is responsible for ensuring that harmful exhaust emissions are reduced to safe levels. The sensor monitors the gradient pressure, indicating when the filter is clogged and needs regeneration. The on-board diagnostic (OBD-II) system reports the error code P2460 when the circuit that powers the particulate filter sensor is reading low.

Causes of OBD-II Code P2460

Several factors can contribute to OBD-II Code P2460, including faulty wiring, damaged particulate filter pressure sensor, or a burned-out fuse. However, the most common cause of this code is the low voltage that powers the sensor. Low voltage in the sensor circuitry occurs when there is a broken wire, corroded connection, or damaged sensor.

Symptoms of OBD-II Code P2460

The most noticeable symptom of this code is the activated “Check Engine” warning light. The light may illuminate in the dashboard display without any other symptoms. However, the driver may observe a decrease in the engine’s power, poor acceleration, or problems starting the engine.

Diagnosis and Repair of OBD-II Code P2460

The first step in diagnosing the P2460 code is to use an OBD-II scanner to check for error codes. Once you have determined the P2460 code, you will need to use a diagnostic tool to test the sensor and its wiring. The tool will test the voltage and resistance of the circuit. If the results indicate low voltage, you will need to check the wiring for any breakages, corrosion, or loose connections.

If the wiring is in good condition but the voltage is still low, the cause may be a damaged or faulty sensor. In this case, you will need to replace the sensor to restore proper operation of the DPF.

Prevention of OBD-II Code P2460

To prevent the P2460 code, you need to ensure proper maintenance of the vehicle’s particulate filter and associated sensors. A clogged DPF requires regeneration to remove the trapped particulates. It would be best to use a high-quality fuel that does not contain high sulfur content. Regularly service the engine, which will reduce the accumulation of particulate matter in the DPF.

Frequently Asked Questions (FAQs)

1. How much does it cost to repair the P2460 code?
The cost of repair depends on the cause of the error code. The parts and labor required for a complete repair can range from $100 to $1000.

2. How long can I continue to drive with the P2460 code?
It is not recommended to drive with the P2460 code, as it can lead to engine damage.

3. Can I fix the P2460 code myself?
If you have experience with OBD-II codes and diagnosing car problems, then it is possible to repair the code yourself. However, it is recommended that you take the vehicle to a certified mechanic to diagnose and repair the code.

4. Will the P2460 code cause the car to fail an emissions test?
Yes, the P2460 code results in increased emissions, which can cause a failed emissions test.

5. What happens if I ignore the P2460 code?
If you ignore the P2460 code, it can result in engine damage, reduced fuel economy, and increased emissions.


If your vehicle has the OBD-II Code P2460, it is essential to diagnose and repair it immediately to avoid further damage. The code indicates low voltage in the particulate filter pressure sensor B circuit, which can cause significant engine problems. Regular servicing of the engine and particulate filter will help prevent the code from appearing. When in doubt, consult a certified mechanic to avoid costly mistakes.


1. Automotive Scanner – https://www.amazon.com/Automotive-Diagnostic-Multimeter-Scanner-Graphing/dp/B08PJS16F5

2. OBD-II Code P2460 Definition – https://www.obd-codes.com/P2460

3. Particulate Filters – https://www.exhaustfilter.com/info/particulate-filters

4. Diesel Particulate Filter – https://en.wikipedia.org/wiki/Diesel particulate filter.

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