AutoCodes – Nissan – B27C1 Nissan

B27C1 Nissan Code - Heat Pump Control Unit

Quick Answer

The Diagnostic Trouble Code (DTC) sets when there is a malfunction in the signal transmitted from the Heat Pump Control Unit. Common causes include Faulty Heat Pump Control Unit, Heat Pump Control Unit harness is open or shorted, Heat Pump Control Unit 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: B27C1 Nissan indicates Heat Pump Control Unit.
Common causes: Common causes include Faulty Heat Pump Control Unit, Heat Pump Control Unit harness is open or shorted, Heat Pump Control Unit 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 667

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 B27C1 Nissan Description

The Diagnostic Trouble Code (DTC) sets when there is a malfunction in the signal transmitted from the Heat Pump Control Unit.

OBDII Code B27C1 Nissan - Heat Pump Control Unit - AutoCodes.com — B27C1 Nissan Code - Heat Pump Control Unit

What does this mean?

What are the Possible Causes of the DTC B27C1 Nissan?

Faulty Heat Pump Control Unit
Heat Pump Control Unit harness is open or shorted
Heat Pump Control Unit circuit poor electrical connection
Faulty A/C Auto Amplifier

How to Fix the DTC B27C1 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 B27C1 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.

Need more information about the B27C1 Nissan 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 B27C1 Nissan Code

1. What are the common symptoms of OBDII code B27C1 in a Nissan related to the Heat Pump Control Unit?

The common symptoms include issues with the heating and cooling system, reduced efficiency of the heat pump, and potential failure of the control unit.

2. What are the possible causes of OBDII code B27C1 in a Nissan related to the Heat Pump Control Unit?

Possible causes include a malfunctioning heat pump control unit, wiring issues, sensor problems, or a faulty temperature control module.

3. How can I diagnose the OBDII code B27C1 in a Nissan related to the Heat Pump Control Unit?

Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific error code, checking the wiring and connectors for any damage, and testing the various components of the heat pump system.

4. Can I drive my Nissan with OBDII code B27C1 related to the Heat Pump Control Unit?

It is not recommended to drive the vehicle with this code as it may lead to further damage to the heat pump system and affect the overall performance of the vehicle's climate control.

5. How can I repair OBDII code B27C1 in a Nissan related to the Heat Pump Control Unit?

Repair options may include replacing the heat pump control unit, repairing any damaged wiring or connectors, resetting the system, or recalibrating the temperature control module.

6. Is it possible to reset OBDII code B27C1 in a Nissan related to the Heat Pump Control Unit?

Resetting the code may temporarily clear the error, but it is important to diagnose and fix the underlying issue to prevent the code from reoccurring.

7. Can a DIY enthusiast repair OBDII code B27C1 in a Nissan related to the Heat Pump Control Unit?

While some basic troubleshooting steps can be performed by a DIY enthusiast, it is recommended to seek professional help for diagnosing and repairing complex issues related to the heat pump control unit.

8. How much does it cost to repair OBDII code B27C1 in a Nissan related to the Heat Pump Control Unit?

The cost of repair can vary depending on the specific issue, parts needed, labor costs, and whether you choose to go to a dealership or an independent repair shop. It is advisable to get a few quotes before proceeding with the repair.

9. Are there any preventive maintenance tips to avoid OBDII code B27C1 related to the Heat Pump Control Unit in a Nissan?

Regularly inspecting the heat pump system, checking for any unusual noises or odors, and promptly addressing any issues can help prevent the occurrence of this error code.

10. Can weather conditions affect OBDII code B27C1 in a Nissan related to the Heat Pump Control Unit?

Extreme weather conditions, such as very high or low temperatures, can potentially put additional strain on the heat pump system and may contribute to triggering this error code.