AutoCodes – Honda – B2986 Honda

B2986 Honda Code - Recirculation Control Motor Circuit Open

Quick Answer

The Climate Control Unit monitors the Recirculation Control Motor. Common causes include Faulty Recirculation Control Motor, Recirculation Control Motor harness is open or shorted, Recirculation Control 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: B2986 Honda indicates Recirculation Control Motor Circuit Open.
Common causes: Common causes include Faulty Recirculation Control Motor, Recirculation Control Motor harness is open or shorted, Recirculation Control 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 12,451

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 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2986 Honda Description

The Climate Control Unit monitors the Recirculation Control Motor. The Climate Control Unit sets the OBDII code when the Recirculation Control Motor is not to factory specifications.

OBDII Code B2986 Honda - Recirculation Control Motor Circuit Open - AutoCodes.com — B2986 Honda Code - Recirculation Control Motor Circuit Open

What does this mean?

What are the Possible Causes of the DTC B2986 Honda?

Faulty Recirculation Control Motor
Recirculation Control Motor harness is open or shorted
Recirculation Control Motor circuit poor electrical connection

How to Fix the DTC B2986 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 B2986 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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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 B2986 Honda Code

1. What does OBDII code B2986 for Honda mean?

The B2986 code indicates a problem with the Recirculation Control Motor Circuit Open in a Honda vehicle.

2. What are the common symptoms of a Recirculation Control Motor Circuit Open issue?

Common symptoms include poor air conditioning performance, abnormal noise from the HVAC system, and the inability to switch between fresh air and recirculated air modes.

3. What are the possible causes of the Recirculation Control Motor Circuit Open code in a Honda?

Potential causes include a faulty recirculation control motor, damaged wiring or connectors in the circuit, or a malfunctioning HVAC control unit.

4. How can I diagnose a Recirculation Control Motor Circuit Open problem in my Honda?

A professional diagnosis using an OBDII scanner is recommended to pinpoint the exact cause of the issue. Additionally, visually inspecting the wiring and connectors for any visible damage can be helpful.

5. Can I drive my Honda with the B2986 code present?

It is generally safe to drive the vehicle with this code, but it is advisable to address the issue promptly to prevent further damage to the HVAC system.

6. How can I repair a Recirculation Control Motor Circuit Open problem in my Honda?

Repair typically involves replacing the faulty recirculation control motor, repairing damaged wiring or connectors, or addressing any issues with the HVAC control unit.

7. Are there any DIY tips for fixing the B2986 code in a Honda?

DIYers with automotive experience can attempt to inspect the wiring and connectors for damage and replace the recirculation control motor themselves. However, professional diagnosis and repair are recommended for accurate and lasting solutions.

8. Will resetting the OBDII system clear the B2986 code in my Honda?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear upon driving the vehicle.

9. Is the Recirculation Control Motor Circuit Open code common in Honda vehicles?

While not extremely common, the B2986 code can occur in various Honda models due to issues with the recirculation control motor circuit.

10. Does fixing the Recirculation Control Motor Circuit Open issue require specialized tools for Honda vehicles?

Repairing this issue may require basic automotive tools, an OBDII scanner for diagnostics, and potentially specialized tools for accessing and replacing the recirculation control motor.