AutoCodes – Honda – B2999 Honda

B2999 Honda Code - A/C Compressor Delivery Valve

Quick Answer

The Climate Control Unit monitors the A/C Compressor Delivery Valve. Common causes include Faulty A/C Compressor Motor, A/C Compressor Motor harness is open or shorted, A/C Compressor Motor 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: B2999 Honda indicates A/C Compressor Delivery Valve.
Common causes: Common causes include Faulty A/C Compressor Motor, A/C Compressor Motor harness is open or shorted, A/C Compressor Motor 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 5,318

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 Feb 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2999 Honda Description

The Climate Control Unit monitors the A/C Compressor Delivery Valve. The Climate Control Unit sets the OBDII code when the A/C Compressor Delivery Valve is not to factory specifications.

OBDII Code B2999 Honda - A/C Compressor Delivery Valve - AutoCodes.com — B2999 Honda Code - A/C Compressor Delivery Valve

What does this mean?

What are the Possible Causes of the DTC B2999 Honda?

Faulty A/C Compressor Motor
A/C Compressor Motor harness is open or shorted
A/C Compressor Motor circuit poor electrical connection

How to Fix the DTC B2999 Honda?

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 B2999 Honda 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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Need Help with the Code?

Get the B2999 Honda 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 B2999 Honda Code

1. What are the common symptoms of OBDII code B2999 related to the A/C Compressor Delivery Valve on a Honda?

The common symptoms include poor or no cooling from the A/C system, unusual noises coming from the compressor, and the A/C system not engaging properly.

2. What can cause OBDII code B2999 related to the A/C Compressor Delivery Valve on a Honda?

Possible causes include a faulty A/C compressor delivery valve, issues with the compressor clutch, low refrigerant levels, or electrical problems in the A/C system.

3. How can I diagnose OBDII code B2999 on my Honda A/C system?

Diagnosis involves using an OBDII scanner to retrieve the code, inspecting the A/C compressor delivery valve for any visible damage, checking the refrigerant levels, and testing the compressor clutch operation.

4. Can I continue driving my Honda with OBDII code B2999 related to the A/C Compressor Delivery Valve?

It is not recommended to drive with this code as it can lead to further damage to the A/C system and cause discomfort during hot weather.

5. What are some repair tips for fixing OBDII code B2999 on a Honda due to the A/C Compressor Delivery Valve issue?

Repair tips include replacing the faulty A/C compressor delivery valve, ensuring proper refrigerant levels, checking for any leaks in the A/C system, and verifying the compressor clutch operation.

6. Is it possible to reset OBDII code B2999 on a Honda without fixing the A/C Compressor Delivery Valve issue?

Resetting the code without fixing the underlying issue is not recommended, as the problem will persist and may lead to more significant A/C system issues in the future.

7. How much does it typically cost to repair OBDII code B2999 related to the A/C Compressor Delivery Valve on a Honda?

The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the A/C compressor delivery valve, which can range from $200 to $500 including parts and labor.

8. Are there any preventive maintenance steps to avoid OBDII code B2999 on a Honda's A/C system?

Regularly servicing the A/C system, checking for refrigerant leaks, ensuring proper refrigerant levels, and addressing any unusual noises or cooling issues promptly can help prevent this code from occurring.

9. Can a DIY enthusiast fix OBDII code B2999 related to the A/C Compressor Delivery Valve on a Honda?

While some basic troubleshooting steps can be performed by a DIY enthusiast, repairing or replacing the A/C compressor delivery valve may require specialized tools and expertise, so it is best to consult a professional mechanic.

10. How long does it take to repair OBDII code B2999 on a Honda related to the A/C Compressor Delivery Valve?

The repair time can vary depending on the exact cause of the issue, but it may take a few hours to a full day to diagnose, repair, and test the A/C system for proper operation.