AutoCodes – Nissan – B27B8 Nissan

B27B8 Nissan Code - Electric Compressor Over Loaded

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the high load status at the low speed of the electric compressor is continued. Common causes include Refrigerant Charge, Faulty Electric Compressor, Electric Compressor harness is open or shorted. 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: B27B8 Nissan indicates Electric Compressor Over Loaded.
Common causes: Common causes include Refrigerant Charge, Faulty Electric Compressor, Electric Compressor harness is open or shorted.
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 726

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 B27B8 Nissan Description

The Diagnostic Trouble Code (DTC) sets when the high load status at the low speed of the electric compressor is continued.

OBDII Code B27B8 Nissan - Electric Compressor Over Loaded - AutoCodes.com — B27B8 Nissan Code - Electric Compressor Over Loaded

What does this mean?

What are the Possible Causes of the DTC B27B8 Nissan?

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

How to Fix the DTC B27B8 Nissan?

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 B27B8 Nissan 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?

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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 B27B8 Nissan Code

1. What are common symptoms of OBDII code B27B8 in a Nissan related to an Electric Compressor Overload?

- Common symptoms include the air conditioning system not cooling properly, unusual compressor noises, and the AC system shutting off unexpectedly.

2. What are the possible causes of the OBDII code B27B8 indicating an Electric Compressor Overload in a Nissan?

- Potential causes can include a faulty electric compressor, issues with the compressor clutch, overcharged refrigerant, or electrical problems in the system.

3. How can I diagnose the OBDII code B27B8 in my Nissan when it points to an Electric Compressor Overload issue?

- Diagnosis typically involves checking the compressor operation, inspecting the electrical connections, testing the compressor clutch, and verifying refrigerant levels.

4. What steps should I take to repair the Electric Compressor Overload problem indicated by the OBDII code B27B8 in my Nissan?

- Repair steps may involve repairing or replacing the electric compressor, fixing any electrical faults, adjusting refrigerant levels, and ensuring proper compressor clutch operation.

5. Can I continue driving my Nissan with the OBDII code B27B8 related to an Electric Compressor Overload issue?

- It is not recommended to drive the vehicle with this issue as it can lead to further damage to the AC system and potentially cause overheating or other related problems.

6. How important is it to address the OBDII code B27B8 indicating an Electric Compressor Overload in my Nissan promptly?

- It is crucial to address this issue promptly to prevent further damage to the AC system, ensure proper cooling in the vehicle, and avoid potential safety hazards.

7. Are there any preventive maintenance tips to avoid encountering the OBDII code B27B8 in a Nissan due to Electric Compressor Overload?

- Regularly servicing the AC system, checking refrigerant levels, inspecting electrical components, and addressing any AC system issues promptly can help prevent this code from appearing.

8. Can a DIY enthusiast attempt to fix the OBDII code B27B8 related to an Electric Compressor Overload in a Nissan?

- While some basic checks like inspecting electrical connections can be done by a DIY enthusiast, diagnosing and repairing complex AC system issues may require professional expertise.

9. How much can I expect to pay for repairing the OBDII code B27B8 Electric Compressor Overload issue in a Nissan at a service center?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve parts and labor costs ranging from a few hundred to over a thousand dollars.

10. Will resetting the OBDII code B27B8 related to Electric Compressor Overload in my Nissan make the issue go away permanently?

- Simply resetting the code may temporarily clear the warning light, but if the underlying issue causing the overload is not addressed, the code is likely to reappear.