AutoCodes – Infiniti – B27B3 Infiniti

B27B3 Infiniti Code - Electric Compressor Internal Communication

Quick Answer

The Diagnostic Trouble Code (DTC) sets when a malfunction is detected in AC inverter internal communication. Common causes include Faulty Electric Compressor, Electric Compressor harness is open or shorted, Electric Compressor 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: B27B3 Infiniti indicates Electric Compressor Internal Communication.
Common causes: Common causes include Faulty Electric Compressor, Electric Compressor harness is open or shorted, Electric Compressor 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 569

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 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B27B3 Infiniti Description

The Diagnostic Trouble Code (DTC) sets when a malfunction is detected in AC inverter internal communication.

OBDII Code B27B3 Infiniti - Electric Compressor Internal Communication - AutoCodes.com — B27B3 Infiniti Code - Electric Compressor Internal Communication

What does this mean?

What are the Possible Causes of the DTC B27B3 Infiniti?

Faulty Electric Compressor
Electric Compressor harness is open or shorted
Electric Compressor circuit poor electrical connection
Faulty Li-ion Battery
Faulty Power Delivery Module (PDM)

How to Fix the DTC B27B3 Infiniti?

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 B27B3 Infiniti 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 B27B3 Infiniti code?

Need more information on how to fix the B27B3 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B27B3 Infiniti 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 B27B3 Infiniti Code

1. What are common symptoms of OBDII code B27B3 in an Infiniti related to the Electric Compressor Internal Communication issue?

- Common symptoms include the air conditioning system not working properly, lack of cool air, and potential issues with climate control.

2. What are the possible causes of OBDII code B27B3 in an Infiniti indicating Electric Compressor Internal Communication problems?

- The code may be triggered by issues with the electric compressor, faulty wiring, poor connections, or a malfunctioning control module.

3. How can I diagnose the Electric Compressor Internal Communication problem causing OBDII code B27B3 in my Infiniti?

- Diagnosis typically involves using an OBDII scanner to read the code, checking the electrical connections, inspecting the compressor components, and testing the control module.

4. Are there any DIY repair tips for resolving OBDII code B27B3 in an Infiniti related to Electric Compressor Internal Communication?

- DIY repair options may include checking and securing electrical connections, ensuring proper compressor function, and resetting the control module.

5. Is it safe to continue driving my Infiniti with OBDII code B27B3 indicating Electric Compressor Internal Communication issues?

- It is not recommended to drive the vehicle with this code unresolved, as it may lead to further damage to the air conditioning system and affect overall vehicle performance.

6. Can resetting the OBDII code B27B3 in my Infiniti fix the Electric Compressor Internal Communication problem?

- Resetting the code may temporarily clear the warning, but it is crucial to diagnose and address the root cause to prevent the issue from recurring.

7. What professional repairs may be needed to resolve OBDII code B27B3 in an Infiniti due to Electric Compressor Internal Communication concerns?

- Professional repairs may involve replacing the electric compressor, repairing faulty wiring, addressing control module issues, or recalibrating the system.

8. How much can I expect to pay for repairing OBDII code B27B3 related to Electric Compressor Internal Communication in my Infiniti?

- The cost of repairs can vary depending on the specific issue, labor rates, and parts needed. It is advisable to consult a mechanic for an accurate estimate.

9. Are there any recalls or service bulletins related to OBDII code B27B3 Electric Compressor Internal Communication issues in Infiniti vehicles?

- It is recommended to check with an authorized Infiniti service center or visit the manufacturer's website for any recalls or service bulletins concerning this specific problem.

10. How can I prevent OBDII code B27B3 from recurring in my Infiniti due to Electric Compressor Internal Communication faults?

- To prevent code recurrence, regular maintenance, checking electrical connections, addressing issues promptly, and ensuring proper climate control system function are essential.