B2799 2013 Toyota RAV4 Code - Engine Immobiliser System Malfunction
Quick Answer
The Engine Control Module (ECM) stores this Diagnostic Trouble Code (DTC) when the communication line between the ECM and Transponder Key ECU Assembly is malfunctioning, or the communication ID of the ECM and Transponder Key ECU Assembly does not match. Common causes include Without Smart Key, Faulty Transponder Key ECU Assembly, Transponder Key ECU Assembly harness is open or shorted. 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 2013 Toyota RAV4 indicates Engine Immobiliser System Malfunction.
- Common causes
- Common causes include Without Smart Key, Faulty Transponder Key ECU Assembly, Transponder Key ECU Assembly harness is open or shorted.
- 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.
Code B2799 2013 Toyota RAV4 Description
For vehicles with Smart Key, this DTC will be set when there are communication malfunctions between the ECM and certification ECU (Smart Key ECU Assembly), or when the communication ID codes do not match, the ECM stores this DTC.
Before troubleshooting this DTC, ensure that no DTC is detected in the transponder key ECU. If there is a key code-related DTC detected in the Transponder Key ECU Assembly or Certification ECU (Smart Key ECU Assembly), repair it first.
What are the Possible Causes of the DTC B2799 2013 Toyota RAV4?
-
Without Smart Key
- Faulty Transponder Key ECU Assembly
- Transponder Key ECU Assembly harness is open or shorted
- Transponder Key ECU Assembly circuit poor electrical connection
- Faulty Engine Control Module (ECM)
With Smart Key - Faulty Certification ECU (Smart Key ECU Assembly)
- Certification ECU harness is open or shorted
- Certification ECU circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC B2799 2013 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 B2799 2013 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 B2799 2013 Toyota RAV4 code?
Need more information on how to fix the B2799 2013 Toyota RAV4 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B2799 2013 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B2799 2013 Toyota RAV4 Code
1. What are the common symptoms of OBDII code B2799 in a 2013 Toyota RAV4?
- Common symptoms include the engine not starting, the engine stalling immediately after starting, or the engine starting but immediately shutting off.
2. What does the OBDII code B2799 indicate in a 2013 Toyota RAV4?
- OBDII code B2799 indicates an Engine Immobiliser System Malfunction in the vehicle.
3. What are the possible causes of the Engine Immobiliser System Malfunction in a 2013 Toyota RAV4?
- Possible causes include issues with the key fob, faulty immobiliser system components, a weak car battery, or a disconnected or damaged wire in the system.
4. How can I diagnose the Engine Immobiliser System Malfunction in my 2013 Toyota RAV4?
- To diagnose the issue, you can start by checking the key fob battery, ensuring the key is programmed correctly, checking for any blown fuses, and scanning the vehicle with an OBDII scanner for specific fault codes.
5. Can I repair the Engine Immobiliser System Malfunction in my 2013 Toyota RAV4 myself?
- Simple fixes like replacing the key fob battery or reprogramming the key can sometimes resolve the issue. However, for more complex problems, it is recommended to consult a professional mechanic for proper diagnosis and repair.
6. Is it safe to continue driving my 2013 Toyota RAV4 with the Engine Immobiliser System Malfunction?
- It is not recommended to drive the vehicle with an active immobiliser system malfunction as it may lead to further complications or potential safety risks. It is best to address the issue promptly.
7. How much does it typically cost to repair the Engine Immobiliser System Malfunction in a 2013 Toyota RAV4?
- The cost of repair can vary depending on the exact cause of the issue. Simple fixes like replacing the key fob battery may cost less, while more complex repairs involving immobiliser system components could be more expensive.
8. Will disconnecting the car battery reset the Engine Immobiliser System Malfunction code?
- Disconnecting the car battery may reset the code temporarily, but if the underlying issue causing the malfunction is not addressed, the code is likely to reappear once the system detects the problem again.
9. Can extreme weather conditions trigger the Engine Immobiliser System Malfunction in a 2013 Toyota RAV4?
- Extreme weather conditions can potentially affect the immobiliser system, especially if components are exposed to moisture or temperature fluctuations. Keeping the system well-maintained can help prevent such issues.
10. How long does it take to repair the Engine Immobiliser System Malfunction in a 2013 Toyota RAV4?
- The repair time can vary depending on the complexity of the issue. Simple fixes may take a short amount of time, while more involved repairs could require additional diagnostic work and parts ordering, extending the repair duration.
Discuss the causes and fixes for B2799 2013 Toyota RAV4 OBDII Code
Code B2799 2013 Toyota RAV4 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
