Engine-CodesToyota – B2799 2014 Toyota RAV4

B2799 2014 Toyota RAV4 Code - Engine Immobiliser System Malfunction

Quick Answer

The B2799 code on a 2014 Toyota RAV4 indicates a malfunction in the engine immobiliser system. Common causes include Faulty transponder key, Wiring issues in the engine immobiliser system, Faulty engine control module (ECM). 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
B2799 2014 Toyota RAV4 indicates Engine Immobiliser System Malfunction.
Common causes
Common causes include Faulty transponder key, Wiring issues in the engine immobiliser system, Faulty engine control module (ECM).
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B2799 2014 Toyota RAV4 Description

The B2799 code on a 2014 Toyota RAV4 indicates a malfunction in the engine immobiliser system. The engine immobiliser system is a security feature that prevents the engine from starting without the correct key or transponder signal. When this system malfunctions, it can prevent the engine from starting or cause it to shut off unexpectedly while driving.

OBDII Code B2799 2014 Toyota RAV4 - Engine Immobiliser System Malfunction
B2799 2014 Toyota RAV4 Code - Engine Immobiliser System Malfunction

Common Causes of B2799 2014 Toyota RAV4

  1. Faulty transponder key
  2. Wiring issues in the engine immobiliser system
  3. Faulty engine control module (ECM)
  4. Dead or weak battery in the key fob
  5. Faulty immobiliser control unit

Symptoms of B2799 2014 Toyota RAV4

  1. Engine cranks but does not start
  2. Engine starts but then immediately shuts off
  3. Security light flashing on the dashboard
  4. Inability to deactivate the immobiliser system
  5. Loss of power while driving

How to Fix B2799 2014 Toyota RAV4

  1. Check the transponder key: Ensure that the transponder key is functioning properly and is programmed to the vehicle. Replace the key if necessary.
  2. Check wiring: Inspect the wiring in the engine immobiliser system for any damage or loose connections. Repair or replace any faulty wiring.
  3. Test the engine control module (ECM): Use a diagnostic tool to check the ECM for any error codes or malfunctions. Replace the ECM if necessary.
  4. Check the key fob battery: Replace the battery in the key fob with a new one to ensure a strong signal transmission.
  5. Test the immobiliser control unit: Use a diagnostic tool to test the immobiliser control unit for any faults. Replace the control unit if needed.

Cost to Fix B2799 2014 Toyota RAV4

The cost of repairing a B2799 code on a 2014 Toyota RAV4 can vary depending on the specific cause of the issue. In general, the cost of parts such as a new transponder key, wiring repairs, ECM replacement, key fob battery, or immobiliser control unit can range from $50 to $500. Labor costs at auto repair shops typically range from $80 to $150 per hour, so the total repair cost could be between $200 and $1000 or more. It's recommended to consult with a professional mechanic to get an accurate estimate based on the specific diagnosis and repairs needed for your vehicle.

Need more information about the B2799 2014 Toyota RAV4 code?

Need more information on how to fix the B2799 2014 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2799 2014 Toyota RAV4 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 B2799 2014 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B2799 (Engine Immobiliser System Malfunction) in a 2014 Toyota RAV4?

- Common symptoms include difficulty starting the vehicle, engine stalling shortly after starting, and the immobiliser system warning light illuminated on the dashboard.

2. What are the possible causes of OBDII code B2799 in a 2014 Toyota RAV4?

- Possible causes of this code include a faulty transponder key, issues with the immobiliser system antenna or receiver, programming errors, or a problem with the Engine Control Module (ECM).

3. How can I diagnose the OBDII code B2799 in my 2014 Toyota RAV4?

- Diagnosis often involves checking the transponder key for damage, ensuring the key is programmed correctly, inspecting the antenna and receiver for any issues, and conducting a thorough scan of the immobiliser system using a diagnostic tool.

4. Can I fix the OBDII code B2799 in my 2014 Toyota RAV4 myself?

- Depending on the specific cause, some fixes may be possible for DIY enthusiasts, such as reprogramming the key, checking for loose connections in the immobiliser system, or replacing a faulty key. However, more complex issues may require professional assistance.

5. Is it safe to drive my 2014 Toyota RAV4 with the Engine Immobiliser System Malfunction code active?

- It is not recommended to drive the vehicle with this code active, as the immobiliser system plays a crucial role in preventing unauthorized access to the vehicle. It's best to address the issue promptly to ensure the security and proper functioning of your vehicle.

6. How much does it typically cost to repair OBDII code B2799 in a 2014 Toyota RAV4?

- The repair costs for this code can vary depending on the underlying cause and whether you opt for DIY repairs or professional services. Costs may involve key reprogramming, antenna or receiver replacement, or ECM repairs, so it's advisable to get a diagnostic assessment first.

7. Will resetting the OBDII code B2799 in my 2014 Toyota RAV4 make it go away permanently?

- Simply resetting the code without addressing the root cause will not make it disappear permanently. It's crucial to diagnose the issue, fix the underlying problem, and then clear the code to ensure it doesn't reappear.

8. Can extreme weather conditions or a dead battery trigger the OBDII code B2799 in a 2014 Toyota RAV4?

- Extreme weather conditions or a dead battery can potentially impact the immobiliser system and trigger the B2799 code in some cases. Ensuring your battery is in good condition and taking preventive measures during extreme weather can help minimize such issues.

9. How long does it typically take to repair the OBDII code B2799 in a 2014 Toyota RAV4?

- The repair time can vary depending on the complexity of the issue causing the B2799 code. Simple fixes like key reprogramming may take less time, while more complex problems requiring parts replacement or extensive diagnostics could take longer.

10. Can I prevent the OBDII code B2799 from occurring in my 2014 Toyota RAV4?

- While some causes of the B2799 code may be unavoidable, regular maintenance, ensuring proper key care, and addressing any warning signs promptly can help prevent this issue from occurring in your 2014 Toyota RAV4.

Discuss the causes and fixes for B2799 2014 Toyota RAV4 OBDII Code

Code B2799 2014 Toyota RAV4 comments

No comments found for this page.