AutoCodes – Generic – P244A

P244A Code - Diesel Particulate Filter Differential Pressure Too Low Bank 1

Quick Answer

This diagnostic checks to make sure that the aftertreatment Diesel Particulate Filter is present and functioning correctly. Common causes include Faulty diesel particulate filter, Exhaust leaks before or near the diesel particulate filter pressure sensor, Leaks in the diesel particulate filter pressure sensor connecting hose. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P244A indicates Diesel Particulate Filter Differential Pressure Too Low Bank 1.
Common causes
Common causes include Faulty diesel particulate filter, Exhaust leaks before or near the diesel particulate filter pressure sensor, Leaks in the diesel particulate filter pressure sensor connecting hose.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 80,012
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jul 28, 2021
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Code P244A Description

This diagnostic checks to make sure that the aftertreatment Diesel Particulate Filter is present and functioning correctly. The Engine Control Module (ECM) uses the Exhaust Pressure Sensor to monitor the pressure differential through the aftertreatment Diesel Particulate Filter. The ECM will set the fault if it detects that the aftertreatment diesel particulate filter is not present in the aftertreatment/exhaust system. This DTC is a two trip fault. Active regeneration of the aftertreatment Diesel Particulate Filter will be disabled. The ECM will turn off the MIL lamp immediately after the diagnostic runs and passes.
OBDII Code P244A - Diesel Particulate Filter Differential Pressure Too Low Bank 1 - AutoCodes.com
P244A Code - Diesel Particulate Filter Differential Pressure Too Low Bank 1

What are the Possible Causes of the DTC P244A?

  • Faulty diesel particulate filter
  • Exhaust leaks before or near the diesel particulate filter pressure sensor
  • Leaks in the diesel particulate filter pressure sensor connecting hose
  • Aftermarket accessories and performance modifications

How to Fix the DTC P244A?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P244A code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P244A code?

Need more information on how to fix the P244A code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P244A code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P244A Buick β€” Diesel Particulate Filter Low Differential Pressure
  • P244A Cadillac β€” Diesel Particulate Filter Low Differential Pressure
  • P244A Chevrolet β€” Diesel Particulate Filter Low Differential Pressure
  • P244A Dodge β€” Diesel Particulate Filter Differential Pressure Too Low Bank 1
  • P244A Ford β€” Diesel Particulate Filter Differential Pressure Too Low Bank 1
  • P244A GMC β€” Diesel Particulate Filter Low Differential Pressure
  • P244A RAM β€” Diesel Particulate Filter Differential Pressure Too Low Bank 1
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P244A Code

1. What are the common symptoms of OBDII code P244A (Diesel Particulate Filter Differential Pressure Too Low Bank 1)?

- Common symptoms include reduced engine power, increased fuel consumption, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P244A?

- The possible causes of this code include a clogged diesel particulate filter, a faulty differential pressure sensor, issues with the exhaust system, or problems with the diesel particulate filter regeneration system.

3. How can I diagnose OBDII code P244A?

- Diagnosis typically involves using an OBDII scanner to retrieve the code and checking the differential pressure sensor readings to determine if they are within the specified range.

4. What are the repair options for OBDII code P244A?

- Repair options may include cleaning or replacing the diesel particulate filter, replacing the differential pressure sensor, addressing exhaust system issues, or resetting the diesel particulate filter regeneration system.

5. Can I continue driving my vehicle with OBDII code P244A?

- It is not recommended to continue driving your vehicle with this code as it can lead to further damage to the engine or emission system components.

6. How much does it typically cost to repair OBDII code P244A?

- The cost of repairing this code can vary depending on the specific issue causing it, but it may range from a few hundred to over a thousand dollars.

7. How often does OBDII code P244A occur in diesel vehicles?

- This code is more commonly seen in diesel vehicles that have a diesel particulate filter system to meet emission standards.

8. What can I do to prevent OBDII code P244A from occurring?

- To prevent this code, it is important to follow the manufacturer's recommended maintenance schedule, use high-quality diesel fuel, and avoid driving short distances frequently.

9. Can a DIY enthusiast repair OBDII code P244A at home?

- While some aspects of diagnosing and repairing this code may be possible for DIY enthusiasts, it is recommended to seek professional help due to the complexity of the diesel particulate filter system.

10. How long does it typically take to repair OBDII code P244A?

- The repair time for this code can vary depending on the exact cause and the availability of parts, but it may take several hours to a day to complete the repair.

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