AutoCodes – Generic – P024B

P024B Code - Charge Air Cooler Bypass Control 'A' Stuck

Quick Answer

The Powertrain Control Module (PCM) controls and monitors the Charge Air Cooler Bypass Control Valve which controls airflow through the charge air cooler. Common causes include Faulty Air Cooler Bypass Control Valve, Air Cooler Bypass Control Valve harness is open or shorted, Air Cooler Bypass Control Valve circuit poor electrical connection. 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: P024B indicates Charge Air Cooler Bypass Control 'A' Stuck.
Common causes: Common causes include Faulty Air Cooler Bypass Control Valve, Air Cooler Bypass Control Valve harness is open or shorted, Air Cooler Bypass Control Valve circuit poor electrical connection.
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.

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Code Popularity 6,064

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 13, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P024B Description

The Powertrain Control Module (PCM) controls and monitors the Charge Air Cooler Bypass Control Valve which controls airflow through the charge air cooler. The PCM sets the OBDII code when the Charge Air Cooler Bypass Control Valve stops working to the PCM signal.

OBDII Code P024B - Charge Air Cooler Bypass Control 'A' Stuck - AutoCodes.com — P024B Code - Charge Air Cooler Bypass Control 'A' Stuck

What does this mean?

What are the Possible Causes of the DTC P024B?

Faulty Air Cooler Bypass Control Valve
Air Cooler Bypass Control Valve harness is open or shorted
Air Cooler Bypass Control Valve circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P024B?

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 P024B 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 P024B code?

Need more information on how to fix the P024B code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P024B code diagnosed by a professional: Find a repair shop in your area

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 P024B Code

1. What are the common symptoms of OBDII code P024B?

The common symptoms of OBDII code P024B include reduced engine performance, decreased fuel efficiency, and potential stalling or rough idling.

2. What does the OBDII code P024B Charge Air Cooler Bypass Control 'A' Stuck mean?

This code indicates that there is an issue with the charge air cooler bypass control system, specifically that the control for bypass 'A' is stuck in one position.

3. What are the possible causes of OBDII code P024B?

Possible causes of OBDII code P024B include a faulty charge air cooler bypass control solenoid, wiring issues, vacuum leaks, or a problem with the charge air cooler bypass actuator.

4. How can I diagnose OBDII code P024B Charge Air Cooler Bypass Control 'A' Stuck?

Diagnosing OBDII code P024B involves checking the charge air cooler bypass control solenoid, inspecting the wiring for damage, conducting a vacuum leak test, and testing the charge air cooler bypass actuator.

5. Can I still drive my vehicle with OBDII code P024B present?

It is not recommended to drive your vehicle with OBDII code P024B present, as it can lead to further engine damage and decreased performance. It is best to address the issue promptly.

6. How can I repair OBDII code P024B Charge Air Cooler Bypass Control 'A' Stuck?

Repairing OBDII code P024B may involve replacing the charge air cooler bypass control solenoid, repairing any damaged wiring, fixing vacuum leaks, or replacing the charge air cooler bypass actuator.

7. Are there any DIY tips for fixing OBDII code P024B?

While some aspects of diagnosing OBDII code P024B can be done by DIY enthusiasts, it is recommended to consult a professional mechanic for accurate diagnosis and repair to ensure the issue is resolved correctly.

8. Can a dirty air filter cause OBDII code P024B to trigger?

A dirty air filter is unlikely to directly cause OBDII code P024B. However, a clogged air filter can contribute to reduced engine performance and efficiency, so it is essential to maintain a clean air filter regularly.

9. Is OBDII code P024B a common issue in specific vehicle makes or models?

OBDII code P024B can occur in various vehicle makes and models, particularly those equipped with turbocharged or supercharged engines that have a charge air cooler bypass control system.

10. How much does it typically cost to repair OBDII code P024B Charge Air Cooler Bypass Control 'A' Stuck?

The cost of repairing OBDII code P024B can vary depending on the underlying cause, parts required, and labor rates. It is recommended to obtain quotes from different mechanics for an accurate estimate.