AutoCodes – Toyota – B2797 2014 Toyota RAV4

B2797 2014 Toyota RAV4 Code - Communication Malfunction No. 1 Immobilizer System

Quick Answer

This Diagnostic Trouble Code (DTC) is output when a communication error occurs between the key slot and transponder key ECU. Common causes include Faulty Key, Faulty Transponder Key Coil, Faulty Transponder Key ECU Assembly. 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: B2797 2014 Toyota RAV4 indicates Communication Malfunction No. 1 Immobilizer System.
Common causes: Common causes include Faulty Key, Faulty Transponder Key Coil, Faulty Transponder Key ECU Assembly.
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 191

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 Jan 16, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2797 2014 Toyota RAV4 Description

This Diagnostic Trouble Code (DTC) is output when a communication error occurs between the key slot and transponder key ECU. The DTC B2797 is stored when a key with a BCC malfunction is inserted into the ignition key cylinder.

OBDII Code B2797 2014 Toyota RAV4 - Communication Malfunction No. 1 Immobilizer System - AutoCodes.com — B2797 2014 Toyota RAV4 Code - Communication Malfunction No. 1 Immobilizer System

What does this mean?

What are the Possible Causes of the DTC B2797 2014 Toyota RAV4?

Faulty Key
Faulty Transponder Key Coil
Faulty Transponder Key ECU Assembly

How to Fix the DTC B2797 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 B2797 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 B2797 2014 Toyota RAV4 code?

Need more information on how to fix the B2797 2014 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2797 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 B2797 2014 Toyota RAV4 Code

1. What does OBDII code B2797 on a 2014 Toyota RAV4 mean?

The code B2797 indicates a Communication Malfunction No. 1 Immobilizer System error in the vehicle.

2. What are the common symptoms of OBDII code B2797 in a 2014 Toyota RAV4?

Common symptoms of code B2797 may include issues with starting the vehicle, the engine not turning over, or the immobilizer system not functioning properly.

3. What are the possible causes of OBDII code B2797 in a 2014 Toyota RAV4?

Potential causes of code B2797 include a faulty immobilizer system, damaged wiring or connectors related to the immobilizer system, or issues with the key or key transponder.

4. How can I diagnose the OBDII code B2797 in my 2014 Toyota RAV4?

Diagnosing code B2797 typically involves using a scan tool to retrieve the code, checking the immobilizer system components, inspecting wiring for damage, and testing the key transponder.

5. Can I drive my 2014 Toyota RAV4 with OBDII code B2797?

It is not recommended to drive your vehicle with an active B2797 code, as it may lead to potential starting or immobilizer system issues while on the road.

6. How can I repair OBDII code B2797 in a 2014 Toyota RAV4?

Repairing code B2797 may involve fixing any wiring or connector issues, replacing the key or key transponder, or reprogramming the immobilizer system to resolve the communication malfunction.

7. Is it safe to reset the OBDII code B2797 in a 2014 Toyota RAV4 using a scan tool?

Resetting the code with a scan tool can be safe as a temporary measure, but it is crucial to address the underlying cause of the code to prevent it from reoccurring.

8. How much does it cost to repair OBDII code B2797 in a 2014 Toyota RAV4?

The cost of repairing code B2797 can vary depending on the specific issue, but it may involve diagnostic fees, parts replacement costs, and labor charges from a professional mechanic.

9. Can a DIY enthusiast fix OBDII code B2797 in a 2014 Toyota RAV4?

While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing complex immobilizer system issues related to code B2797 may require professional expertise.

10. How often does OBDII code B2797 occur in a 2014 Toyota RAV4?

The occurrence of code B2797 can vary depending on the vehicle's condition and usage, but it is relatively uncommon compared to other OBDII codes in the 2014 Toyota RAV4.