B2990 Honda Code - A/C Compressor Driving Circuit
Quick Answer
The B2990 Honda code refers to a problem with the A/C compressor driving circuit in the vehicle. Common causes include Faulty A/C compressor clutch, Defective A/C compressor relay, Damaged wiring or connectors in the A/C compressor driving circuit. 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
- B2990 Honda indicates A/C Compressor Driving Circuit.
- Common causes
- Common causes include Faulty A/C compressor clutch, Defective A/C compressor relay, Damaged wiring or connectors in the A/C compressor driving circuit.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B2990 Honda Description
The B2990 Honda code refers to a problem with the A/C compressor driving circuit in the vehicle. The A/C compressor is a crucial component of the air conditioning system, responsible for compressing and circulating refrigerant gas to cool the interior of the car. When this circuit is not functioning properly, it can lead to issues with the overall performance of the A/C system.
Common Causes of B2990 Honda
- Faulty A/C compressor clutch
- Defective A/C compressor relay
- Damaged wiring or connectors in the A/C compressor driving circuit
- Malfunctioning A/C compressor control module
- Issues with other electrical components related to the A/C system
Symptoms of B2990 Honda
- Lack of cold air blowing from the A/C vents
- A/C system not engaging or turning on
- Strange noises coming from the A/C compressor
- A/C system intermittently working or cutting out unexpectedly
- Dashboard warning light indicating an issue with the A/C system
How to Fix B2990 Honda
- Perform a diagnostic scan to confirm the B2990 Honda code and pinpoint the exact cause of the issue.
- Inspect the A/C compressor clutch, relay, wiring, and control module for any signs of damage or wear.
- Replace any faulty components identified during the inspection, such as the compressor clutch, relay, or damaged wiring.
- Clear the diagnostic trouble codes from the vehicle's system and test the A/C system to ensure proper functioning.
- Recharge the A/C system with refrigerant if necessary and check for any leaks in the system that may have developed due to the issue.
Cost to Fix B2990 Honda
The typical repair costs for addressing a B2990 Honda code can vary depending on the specific cause of the issue and the extent of the repair needed. In general, repairing the A/C compressor driving circuit may cost between $200 and $500, including parts and labor. However, it's important to note that the actual cost can be higher or lower based on factors such as the location of the repair shop, the make and model of the vehicle, and any additional repairs that may be required. Diagnostic time and labor rates at auto repair shops can range from $80 to $150 per hour, so it's advisable to get a detailed estimate from a trusted mechanic before proceeding with the repair.
Need more information about the B2990 Honda code?
Need more information on how to fix the B2990 Honda code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B2990 Honda code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B2990 Honda Code
1. What does code B2990 mean on a Honda vehicle?
B2990 indicates an issue with the A/C Compressor Driving Circuit, which controls the operation of the air conditioning compressor.
2. What are common symptoms of the B2990 code in a Honda?
Symptoms may include the A/C not blowing cold air, the A/C compressor not engaging, or the A/C system functioning intermittently.
3. What causes the B2990 code to trigger?
Common causes include a faulty A/C compressor, damaged wiring or connectors in the A/C circuit, a malfunctioning compressor clutch relay, or a defective climate control module.
4. Can a blown fuse cause the B2990 code?
Yes, a blown fuse in the A/C compressor circuit can interrupt power and trigger the B2990 code.
5. How do you diagnose the B2990 code?
Diagnosis involves checking for blown fuses, inspecting the wiring and connectors for damage, testing the A/C compressor clutch relay, and verifying power and ground to the A/C compressor.
6. Can I still drive my Honda with the B2990 code present?
Yes, you can drive the vehicle, but the A/C system may not function properly, which could be uncomfortable in hot weather.
7. How do you fix the B2990 code on a Honda?
Repairs may include replacing the A/C compressor, repairing or replacing damaged wiring, replacing the compressor clutch relay, or reprogramming or replacing the climate control module.
8. Is the B2990 code specific to Honda vehicles?
While the code can apply to other manufacturers, its definition and specific diagnostic steps may vary. Always refer to Honda-specific repair information.
9. How much does it cost to repair the B2990 code?
Repair costs depend on the issue but may range from $100 for wiring repairs to over $1,000 for A/C compressor replacement.
10. Can low refrigerant levels cause the B2990 code?
Low refrigerant levels typically do not directly cause this code, but they can lead to A/C system problems that might trigger related issues.
Discuss the causes and fixes for B2990 Honda OBDII Code
Code B2990 Honda comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.