AutoCodes – Chevrolet – P24A0 Chevrolet

P24A0 Chevrolet Code - Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature

Quick Answer

The diesel exhaust aftertreatment system consists of an underhood pre-catalytic converter and an underbody catalyst converter. Common causes include Perform the Diesel Particulate Filter Service Regeneration, Faulty Exhaust Gas Temperature Sensor, Exhaust Gas Temperature Sensor harness is open or shorted. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P24A0 Chevrolet indicates Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature.
Common causes: Common causes include Perform the Diesel Particulate Filter Service Regeneration, Faulty Exhaust Gas Temperature Sensor, Exhaust Gas Temperature Sensor harness is open or shorted.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 7,361

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 29, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P24A0 Chevrolet Description

The diesel exhaust aftertreatment system consists of an underhood pre-catalytic converter and an underbody catalyst converter. The underbody catalyst converter also consists of the main Diesel Oxidation Catalyst and the coated Diesel Particulate Filter (DPF). One of the main purposes of the DPF is to collect particulates from the engine exhaust in order to minimize discharge of soot to the atmosphere. The soot particles accumulate in the channels of the DPF and are burned off at regular intervals through a process called regeneration. This prevents the DPF from clogging. The Engine Control Module (ECM) commands the DPF regeneration after calculating various vehicle conditions such as DPF pressure difference, exhaust gas temperature, engine oil quality, engine speed, etc. Excessive accumulation of the soot in the DPF can cause a drop in the engine performance. During regeneration, additional fuel is injected via multiple post injections in order to increase the exhaust gas temperature. During this period, the DPF temperature is raised to approximately 600°C (1112°F) and the accumulated soot is oxidized or burned off into carbon dioxide (CO2). The Diagnostic Trouble Code (DTC) will be set when the ECM detects insufficient exhaust temperature upstream of the DPF during a DPF regeneration.

OBDII Code P24A0 Chevrolet - Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature - AutoCodes.com — P24A0 Chevrolet Code - Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature

What does this mean?

What are the Possible Causes of the DTC P24A0 Chevrolet?

Perform the Diesel Particulate Filter Service Regeneration
Faulty Exhaust Gas Temperature Sensor
Exhaust Gas Temperature Sensor harness is open or shorted
Exhaust Gas Temperature Sensor circuit poor electrical connection
Faulty Exhaust Particulate Filter

How to Fix the DTC P24A0 Chevrolet?

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 P24A0 Chevrolet 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.

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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 P24A0 Chevrolet Code

1. What are the common symptoms of OBDII code P24A0 in a Chevrolet related to Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature?

- Common symptoms include reduced engine performance, decreased fuel efficiency, and the illumination of the check engine light.

2. What can cause the OBDII code P24A0 in a Chevrolet related to Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature?

- The code can be triggered by a faulty diesel particulate filter (DPF), issues with the temperature sensor, or problems with the regeneration control module.

3. How serious is the OBDII code P24A0 in a Chevrolet related to Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature?

- Ignoring this code can lead to further damage to the DPF system and affect the vehicle's performance. It is recommended to address the issue promptly.

4. Can I continue driving my Chevrolet with the OBDII code P24A0 related to Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to increased emissions and potential engine damage.

5. How can I diagnose and repair OBDII code P24A0 in a Chevrolet related to Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature?

- Diagnosis typically involves scanning the vehicle's computer for codes and conducting tests on the DPF system components. Repairs may include replacing the DPF, temperature sensor, or regeneration control module.

6. Are there any DIY tips for addressing the OBDII code P24A0 related to Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature in a Chevrolet?

- DIY tips may include checking for loose connections, ensuring proper DPF maintenance, and keeping up with regular vehicle inspections to prevent issues with the DPF system.

7. How much does it cost to repair the OBDII code P24A0 in a Chevrolet related to Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature?

- Repair costs can vary depending on the specific issue causing the code, but they may range from a few hundred to a thousand dollars, including parts and labor.

8. Can a Chevrolet dealership help with diagnosing and repairing the OBDII code P24A0 related to Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature?

- Yes, a Chevrolet dealership or certified mechanic will have the tools and expertise to accurately diagnose and repair issues related to the DPF system and the P24A0 code.

9. How often should the Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature system be inspected in a Chevrolet to prevent OBDII code P24A0?

- It is recommended to have the DPF system inspected during regular maintenance intervals or if you notice any symptoms of issues such as decreased performance or increased emissions.

10. Will resetting the check engine light make the OBDII code P24A0 related to Closed Loop Diesel Particulate Filter Regeneration Control At Limit Low Temperature go away?

- Resetting the check engine light may temporarily clear the code, but the underlying issue causing the code will still need to be diagnosed and repaired to prevent it from reoccurring.