AutoCodes – Infiniti – B27C5 Infiniti

B27C5 Infiniti Code - A/C Unit Case Temperature Sensor High

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the A/C unit case temperature sensor recognition temperature is too high [more than 200Â°C (392Â°F)]. Common causes include Faulty A/C Unit Case Temperature Sensor, A/C Unit Case Temperature Sensor harness is open or shorted, A/C Unit Case Temperature Sensor 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: B27C5 Infiniti indicates A/C Unit Case Temperature Sensor High.
Common causes: Common causes include Faulty A/C Unit Case Temperature Sensor, A/C Unit Case Temperature Sensor harness is open or shorted, A/C Unit Case Temperature Sensor 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 573

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 B27C5 Infiniti Description

The Diagnostic Trouble Code (DTC) sets when the A/C unit case temperature sensor recognition temperature is too high [more than 200Â°C (392Â°F)].

OBDII Code B27C5 Infiniti - A/C Unit Case Temperature Sensor High - AutoCodes.com — B27C5 Infiniti Code - A/C Unit Case Temperature Sensor High

What does this mean?

What are the Possible Causes of the DTC B27C5 Infiniti?

Faulty A/C Unit Case Temperature Sensor
A/C Unit Case Temperature Sensor harness is open or shorted
A/C Unit Case Temperature Sensor circuit poor electrical connection
Faulty A/C Auto Amplifier

How to Fix the DTC B27C5 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 B27C5 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 B27C5 Infiniti code?

Need more information on how to fix the B27C5 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B27C5 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 B27C5 Infiniti Code

1. What are common symptoms of the OBDII code B27C5 Infiniti related to the A/C Unit Case Temperature Sensor High?

The common symptoms include poor A/C performance, inconsistent cooling, and potential issues with the climate control system.

2. What can cause the A/C Unit Case Temperature Sensor High code B27C5 in an Infiniti?

The most common causes are a faulty temperature sensor, wiring issues, or a malfunction in the A/C unit control module.

3. How can I diagnose the A/C Unit Case Temperature Sensor High code B27C5 in my Infiniti?

You can diagnose the issue by using an OBDII scanner to retrieve the specific code, inspecting the sensor and its wiring for any visible damage, and testing the sensor's resistance.

4. Can I continue driving my Infiniti with the A/C Unit Case Temperature Sensor High code B27C5?

It is not recommended to drive the vehicle with this code as it can lead to further damage to the A/C system and potentially affect the overall performance of the vehicle.

5. Is it possible to reset the B27C5 code related to the A/C Unit Case Temperature Sensor High in an Infiniti?

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

6. How much does it typically cost to repair the A/C Unit Case Temperature Sensor High code B27C5 in an Infiniti?

The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Are there any DIY tips for fixing the A/C Unit Case Temperature Sensor High code B27C5 in an Infiniti?

If you are experienced with automotive repairs, you can attempt to replace the temperature sensor yourself after identifying the faulty component.

8. How long does it take to repair the A/C Unit Case Temperature Sensor High code B27C5 in an Infiniti?

The repair time can vary based on the exact cause of the issue and the availability of parts, but it typically takes 1-2 hours for a professional mechanic to complete the repair.

9. Can extreme weather conditions affect the A/C Unit Case Temperature Sensor High code B27C5 in an Infiniti?

Extreme temperatures can potentially impact the sensor's performance and trigger the code, so it is important to keep the A/C system well-maintained in all weather conditions.

10. Will replacing the A/C Unit Case Temperature Sensor resolve the B27C5 code in my Infiniti?

Replacing the sensor is a common solution for this code, but it is recommended to diagnose the issue thoroughly to ensure that the sensor replacement will fix the problem.