AutoCodes – Toyota – B27A3 2014 Toyota RAV4

B27A3 2014 Toyota RAV4 Code - Open in Drivers Side Rear Door Electrical Antenna Circuit

Quick Answer

The Certification ECU (Smart Key ECU Assembly) generates a request signal and transmits the signal to the Drivers Side Rear Door Outside Handle Assembly (electrical key antenna) at intervals of 0.25 seconds. Common causes include Faulty Drivers Side Rear Door Outside Handle Assembly, Drivers Side Rear Door Outside Handle Assembly harness is open or shorted, Drivers Side Rear Door Outside Handle Assembly 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
B27A3 2014 Toyota RAV4 indicates Open in Drivers Side Rear Door Electrical Antenna Circuit.
Common causes
Common causes include Faulty Drivers Side Rear Door Outside Handle Assembly, Drivers Side Rear Door Outside Handle Assembly harness is open or shorted, Drivers Side Rear Door Outside Handle Assembly 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 208
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 18, 2023
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Code B27A3 2014 Toyota RAV4 Description

The Certification ECU (Smart Key ECU Assembly) generates a request signal and transmits the signal to the Drivers Side Rear Door Outside Handle Assembly (electrical key antenna) at intervals of 0.25 seconds. For the Drivers Side Rear Door Outside Handle Assembly (electrical key antenna) to detect when the electrical key transmitter sub-assembly is brought close to the vehicle, a signal requesting a response from the electrical key transmitter sub-assembly is transmitted within approximately 1 m (3.28 ft.) of the rear door at intervals of 0.25 seconds. The Diagnostic Trouble Code (DTC) B27A3 is stored by the Certification ECU (Smart Key ECU Assembly) when an open circuit is detected between the Certification ECU (Smart Key ECU Assembly) and Drivers Side Rear Door Outside Handle Assembly (electrical key antenna).
OBDII Code B27A3 2014 Toyota RAV4 - Open in Drivers Side Rear Door Electrical Antenna Circuit - AutoCodes.com
B27A3 2014 Toyota RAV4 Code - Open in Drivers Side Rear Door Electrical Antenna Circuit

What are the Possible Causes of the DTC B27A3 2014 Toyota RAV4?

  • Faulty Drivers Side Rear Door Outside Handle Assembly
  • Drivers Side Rear Door Outside Handle Assembly harness is open or shorted
  • Drivers Side Rear Door Outside Handle Assembly circuit poor electrical connection
  • Faulty Certification ECU (Smart Key ECU Assembly)

How to Fix the DTC B27A3 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 B27A3 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.

Need more information about the B27A3 2014 Toyota RAV4 code?

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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 B27A3 2014 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B27A3 in a 2014 Toyota RAV4?

The common symptoms include issues with remote keyless entry, poor reception of signals, and malfunctioning power door locks.

2. What does the OBDII code B27A3 indicate in a 2014 Toyota RAV4?

The code B27A3 indicates an open in the driver's side rear door electrical antenna circuit in a 2014 Toyota RAV4.

3. What are the possible causes of the open in the driver's side rear door electrical antenna circuit in a 2014 Toyota RAV4?

Possible causes include damaged wiring, a faulty antenna, loose connections, or a malfunctioning control module.

4. How can I diagnose the issue related to OBDII code B27A3 in my 2014 Toyota RAV4?

You can start by visually inspecting the wiring and connections in the driver's side rear door, checking for any visible damage or loose connections.

5. Can I repair the open in the driver's side rear door electrical antenna circuit in my 2014 Toyota RAV4 myself?

If you have the necessary skills and tools, you may be able to repair the issue yourself by addressing any damaged wiring, replacing the antenna, or fixing loose connections.

6. Is it recommended to reset the OBDII code B27A3 after repairing the issue in a 2014 Toyota RAV4?

Yes, it is recommended to reset the code using an OBDII scanner after repairing the open in the driver's side rear door electrical antenna circuit to clear the error from the system.

7. How important is it to address the OBDII code B27A3 in a 2014 Toyota RAV4 promptly?

It is important to address the issue promptly to ensure proper functioning of the remote keyless entry system and avoid potential security risks related to door locks not working correctly.

8. What should I do if I am unable to diagnose or repair the issue related to OBDII code B27A3 in my 2014 Toyota RAV4?

If you are unable to diagnose or repair the issue yourself, it is recommended to seek assistance from a qualified mechanic or dealership for professional diagnosis and repair.

9. Can a faulty driver's side rear door electrical antenna circuit impact other electrical components in a 2014 Toyota RAV4?

Yes, a faulty antenna circuit can potentially affect other electrical components in the vehicle, especially those related to remote keyless entry and door locking systems.

10. Are there any preventive measures to avoid encountering the OBDII code B27A3 issue in a 2014 Toyota RAV4?

Regularly inspecting the wiring and connections in the rear door areas, avoiding water damage, and handling the doors gently can help prevent issues with the electrical antenna circuit.

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