Need a
Repair Manual?
P2460 OBD2: Diesel Particulate Filter Pressure Sensor "B" Circuit Low

P2460 OBD2: Diesel Particulate Filter Pressure Sensor “B” Circuit Low

The P2460 OBD-II code indicates a problem with the Diesel Particulate Filter (DPF) Pressure Sensor “B” Circuit, specifically reporting a low voltage or implausible signal. This code is crucial for maintaining the efficiency of the diesel exhaust system and ensuring compliance with emission standards.

What Does the P2460 Code Mean?

The P2460 code signifies that the Powertrain Control Module (PCM) has detected an issue with the pressure sensor that monitors the exhaust pressure both entering and exiting the DPF. This sensor plays a vital role in the function of the DPF, which is responsible for filtering harmful soot and particulates from the exhaust gases.

What Causes the P2460 Code?

Several factors can trigger the P2460 code, including:

  • Exhaust pressure sensor failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues or poor connections
  • Faulty Diesel Exhaust Fluid (DEF) injection

What Are the Symptoms of the P2460 Code?

Symptoms associated with the P2460 code may include:

  • Illumination of the Check Engine Light
  • Clean exhaust filter message appearing on the instrument cluster
  • Possible decrease in vehicle performance
  • Increased exhaust emissions

How Serious Is the P2460 Code?

The P2460 code is classified as urgent, indicating that immediate attention is necessary. Ignoring this code could lead to severe damage to the vehicle’s exhaust system and negatively impact engine performance, potentially causing harm to the driver and passengers.

How to Diagnose the P2460 Code

To accurately diagnose the P2460 code, follow these steps:

  1. Use an OBD-II scanner to confirm the P2460 code and check for any additional codes.
  2. Inspect the exhaust pressure sensor and wiring for any visible damage or loose connections.
  3. Test the exhaust pressure sensor with a multimeter to ensure it is functioning correctly.
  4. Examine the DPF system for any blockages or issues that could affect pressure readings.
  5. Check the PCM for software updates or faults that may contribute to the issue.

Common Repairs for the P2460 Code

Repairs for the P2460 code may include:

  • Replacing the faulty exhaust pressure sensor
  • Repairing or replacing damaged wiring or connectors
  • Updating or reprogramming the PCM
  • Cleaning or replacing the DPF if necessary

How Much Does It Cost to Fix the P2460 Code?

The cost to fix the P2460 code can vary significantly based on the underlying issue. Typical costs may range from $100 to $600, depending on whether you need to replace the sensor, repair wiring, or address more complex issues with the PCM or DPF.

Can I Fix the P2460 Code Myself?

If you have experience with automotive repairs, you may be able to address the P2460 code yourself. However, it’s important to conduct a thorough diagnosis to identify the root cause of the issue. If you are uncertain or lack the necessary tools, it’s advisable to seek professional assistance to avoid further complications.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

Leave a Reply

Your email address will not be published. Required fields are marked *

;