AutoCodes – Generic – B24B6

B24B6 Code - A/C Control Communication

Quick Answer

When A/C Auto Amplifier is not transmitting or receiving a communication signal for 2 or more seconds the Diagnostic Trouble Code (DTC) is set. Common causes include Faulty A/C Switch, A/C Switch harness is open or shorted, A/C Switch 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: B24B6 indicates A/C Control Communication.
Common causes: Common causes include Faulty A/C Switch, A/C Switch harness is open or shorted, A/C Switch 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 908

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 Dec 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B24B6 Description

When A/C Auto Amplifier is not transmitting or receiving a communication signal for 2 or more seconds the Diagnostic Trouble Code (DTC) is set.

OBDII Code B24B6 - A/C Control Communication - AutoCodes.com — B24B6 Code - A/C Control Communication

What does this mean?

What are the Possible Causes of the DTC B24B6?

Faulty A/C Switch
A/C Switch harness is open or shorted
A/C Switch circuit poor electrical connection
Faulty A/C Auto Amplifier

How to Fix the DTC B24B6?

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 B24B6 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 B24B6 code?

Need more information on how to fix the B24B6 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B24B6 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B24B6 Infiniti — A/C Control Communication
B24B6 Nissan — A/C Control Communication

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 B24B6 Code

1. What are the common symptoms of OBDII code B24B6 related to A/C Control Communication?

- Common symptoms include issues with the air conditioning system such as irregular cooling, failure to turn on, or erratic operation.

2. What are the possible causes of OBDII code B24B6 A/C Control Communication error?

- The error can be caused by faults in the A/C control module, wiring issues, communication network problems, or a malfunctioning climate control system.

3. How can I diagnose the OBDII code B24B6 A/C Control Communication problem?

- Diagnosis typically involves using a diagnostic scanner to retrieve the specific trouble code, checking the A/C control module for faults, inspecting wiring connections, and testing the communication network.

4. Are there any simple repair tips for fixing OBDII code B24B6 A/C Control Communication issue?

- Some basic repair tips include checking and repairing any damaged wiring, ensuring proper connections, resetting the A/C control module, and clearing the trouble code with a diagnostic scanner.

5. Can OBDII code B24B6 A/C Control Communication problem be fixed at home or should I visit a mechanic?

- Depending on your level of automotive expertise, you may be able to fix the issue at home by following diagnostic procedures and basic repair tips. However, seeking professional help from a mechanic is recommended for complex issues.

6. What are the risks of ignoring OBDII code B24B6 A/C Control Communication error?

- Ignoring the error can lead to continued problems with the air conditioning system, reduced comfort while driving, and potential damage to other components if the underlying issue is not addressed promptly.

7. Is it safe to continue driving with OBDII code B24B6 A/C Control Communication fault?

- While it may be safe to drive with the error code initially, continued driving without fixing the issue can result in further damage to the A/C system and potentially affect the overall performance of the vehicle.

8. How much does it typically cost to repair OBDII code B24B6 A/C Control Communication problem?

- The cost of repair can vary depending on the exact cause of the issue, labor rates in your area, and the need for replacement parts. It is advisable to get a few quotes from different mechanics for an accurate estimate.

9. Will resetting the OBDII code B24B6 A/C Control Communication error make it go away permanently?

- Resetting the code may temporarily clear the error, but if the underlying issue is not fixed, the code is likely to reappear. It is crucial to diagnose and repair the root cause to prevent future occurrences.

10. Can extreme weather conditions or environmental factors trigger OBDII code B24B6 A/C Control Communication error?

- While extreme weather conditions or environmental factors may not directly trigger the error code, they can exacerbate existing issues within the A/C system, leading to the appearance of the code. Regular maintenance can help prevent such occurrences.