AutoCodes – Toyota – B27A6 2014 Toyota RAV4

B27A6 2014 Toyota RAV4 Code - Open In Rear Floor Electrical Key Oscillator Circuit

Quick Answer

The Certification ECU (Smart Key ECU Assembly) generates a request signal and sends it to the Indoor Electrical Key Oscillator (for center floor). Common causes include Faulty Indoor Electrical Key Oscillator (for center floor), Indoor Electrical Key Oscillator harness is open or shorted, Indoor Electrical Key Oscillator 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: B27A6 2014 Toyota RAV4 indicates Open In Rear Floor Electrical Key Oscillator Circuit.
Common causes: Common causes include Faulty Indoor Electrical Key Oscillator (for center floor), Indoor Electrical Key Oscillator harness is open or shorted, Indoor Electrical Key Oscillator 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 367

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jan 18, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B27A6 2014 Toyota RAV4 Description

The Certification ECU (Smart Key ECU Assembly) generates a request signal and sends it to the Indoor Electrical Key Oscillator (for center floor). To detect the key inside the cabin, the Indoor Electrical Key Oscillator (for center floor) creates a detection area in the cabin.
The Diagnostic Trouble Code (DTC) B27A6 is detected by the Certification ECU (Smart Key ECU Assembly) when an open circuit occurs between the Certification ECU (Smart Key ECU Assembly) and Indoor Electrical Key Oscillator (for center floor) terminals.

OBDII Code B27A6 2014 Toyota RAV4 - Open In Rear Floor Electrical Key Oscillator Circuit - AutoCodes.com — B27A6 2014 Toyota RAV4 Code - Open In Rear Floor Electrical Key Oscillator Circuit

What does this mean?

What are the Possible Causes of the DTC B27A6 2014 Toyota RAV4?

Faulty Indoor Electrical Key Oscillator (for center floor)
Indoor Electrical Key Oscillator harness is open or shorted
Indoor Electrical Key Oscillator circuit poor electrical connection
Faulty Certification ECU (Smart Key ECU Assembly)

How to Fix the DTC B27A6 2014 Toyota RAV4?

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 B27A6 2014 Toyota RAV4 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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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 B27A6 2014 Toyota RAV4 Code

1. What are common symptoms of OBDII code B27A6 in a 2014 Toyota RAV4?

The common symptoms of OBDII code B27A6 in a 2014 Toyota RAV4 include issues with the keyless entry system, difficulties starting the vehicle, and intermittent problems with the door locks.

2. What does the OBDII code B27A6 indicate in a 2014 Toyota RAV4?

OBDII code B27A6 in a 2014 Toyota RAV4 indicates an open circuit in the rear floor electrical key oscillator circuit, affecting the keyless entry system.

3. What are possible causes of OBDII code B27A6 in a 2014 Toyota RAV4?

Possible causes of OBDII code B27A6 in a 2014 Toyota RAV4 include damaged wiring, loose connections, or a faulty key oscillator module.

4. How can I diagnose the issue related to OBDII code B27A6 in my 2014 Toyota RAV4?

Diagnosing the issue related to OBDII code B27A6 in a 2014 Toyota RAV4 involves inspecting the wiring harness, checking for loose connections, and testing the key oscillator module for proper functioning.

5. What are the repair options for OBDII code B27A6 in a 2014 Toyota RAV4?

Repair options for OBDII code B27A6 in a 2014 Toyota RAV4 may include repairing or replacing damaged wiring, securing loose connections, or replacing the key oscillator module if necessary.

6. Can I drive my 2014 Toyota RAV4 with OBDII code B27A6?

It is generally not recommended to drive your 2014 Toyota RAV4 with OBDII code B27A6, as it can affect the keyless entry system and potentially lead to further electrical issues.

7. How urgent is it to address OBDII code B27A6 in a 2014 Toyota RAV4?

It is important to address OBDII code B27A6 in a 2014 Toyota RAV4 in a timely manner to prevent potential issues with the keyless entry system and ensure proper vehicle operation.

8. Can I reset OBDII code B27A6 in my 2014 Toyota RAV4?

While you can clear the OBDII code B27A6 in your 2014 Toyota RAV4 using an OBDII scanner, it is important to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

9. How much does it cost to repair OBDII code B27A6 in a 2014 Toyota RAV4?

The cost to repair OBDII code B27A6 in a 2014 Toyota RAV4 can vary depending on the specific issue, but it may involve repair costs for wiring, connectors, or replacement of the key oscillator module.

10. Can a DIY enthusiast fix OBDII code B27A6 in a 2014 Toyota RAV4?

While some DIY enthusiasts with automotive repair experience may be able to diagnose and address OBDII code B27A6 in a 2014 Toyota RAV4, it is recommended to consult a professional technician for accurate diagnosis and repair to ensure proper functioning of the keyless entry system.