AutoCodes – Generic – B27F5

B27F5 Code - Refrigerant Channel Switching 3 Way Type Valve

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Heat Pump Control Unit detects a malfunction of the Refrigerant Channel Switching 3 Way Type Valve control signal status, compared to the valve status of the control that is being judged. Common causes include Faulty Refrigerant Channel Switching 3 Way Type Valve, Refrigerant Channel Switching 3 Way Type Valve harness is open or shorted, Refrigerant Channel Switching 3 Way Type 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: B27F5 indicates Refrigerant Channel Switching 3 Way Type Valve.
Common causes: Common causes include Faulty Refrigerant Channel Switching 3 Way Type Valve, Refrigerant Channel Switching 3 Way Type Valve harness is open or shorted, Refrigerant Channel Switching 3 Way Type 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 657

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 10, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B27F5 Description

OBDII Code B27F5 - Refrigerant Channel Switching 3 Way Type Valve - AutoCodes.com — B27F5 Code - Refrigerant Channel Switching 3 Way Type Valve

What does this mean?

What are the Possible Causes of the DTC B27F5?

Faulty Refrigerant Channel Switching 3 Way Type Valve
Refrigerant Channel Switching 3 Way Type Valve harness is open or shorted
Refrigerant Channel Switching 3 Way Type Valve circuit poor electrical connection
Faulty Heat Pump Control Unit

How to Fix the DTC B27F5?

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 B27F5 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 B27F5 code?

Need more information on how to fix the B27F5 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B27F5 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B27F5 Infiniti — Refrigerant Channel Switching 3 Way Type Valve
B27F5 Nissan — Refrigerant Channel Switching 3 Way Type Valve

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 B27F5 Code

1. What are the common symptoms of OBDII code B27F5 related to the Refrigerant Channel Switching 3 Way Type Valve?

- Common symptoms include difficulties with air conditioning cooling performance, unusual noises from the HVAC system, and in some cases, a complete lack of cold air from the vents.

2. What are the possible causes of OBDII code B27F5 related to the Refrigerant Channel Switching 3 Way Type Valve?

- The code B27F5 can be triggered by issues such as a faulty refrigerant channel switching valve, electrical wiring problems, low refrigerant levels, or a malfunctioning HVAC control module.

3. How can I diagnose the OBDII code B27F5 related to the Refrigerant Channel Switching 3 Way Type Valve?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific fault code, conducting visual inspections of the valve and associated components, and performing electrical tests to identify the root cause of the issue.

4. Is it safe to continue driving with OBDII code B27F5 related to the Refrigerant Channel Switching 3 Way Type Valve?

- It is generally not recommended to continue driving with this code active, as it can lead to further damage to the HVAC system and potentially result in a complete failure of the air conditioning system.

5. How can I repair OBDII code B27F5 related to the Refrigerant Channel Switching 3 Way Type Valve?

- Repair options may include replacing the faulty refrigerant channel switching valve, repairing any damaged wiring, recharging the refrigerant levels, or recalibrating the HVAC control module to resolve the issue.

6. Can I reset the OBDII code B27F5 related to the Refrigerant Channel Switching 3 Way Type Valve myself?

- While you can clear the code using an OBDII scanner, it is crucial to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair OBDII code B27F5 related to the Refrigerant Channel Switching 3 Way Type Valve?

- Repair costs can vary depending on the specific cause of the issue, but you can expect to pay for parts and labor, with total expenses ranging from a few hundred to over a thousand dollars.

8. Are there any preventative maintenance tips to avoid OBDII code B27F5 related to the Refrigerant Channel Switching 3 Way Type Valve?

- Regularly servicing your vehicle's air conditioning system, checking refrigerant levels, and addressing any unusual noises or performance issues promptly can help prevent the occurrence of this code.