B279C Toyota Code - Theft Deterrent System Presence Detection
Quick Answer
This Diagnostic Trouble Code (DTC) is stored when an Engine Control Module (ECM) that is incompatible with the immobiliser system is installed in the vehicle. Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine Control Module 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
- B279C Toyota indicates Theft Deterrent System Presence Detection.
- Common causes
- Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine Control Module 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.
Code B279C Toyota Description
What are the Possible Causes of the DTC B279C Toyota?
- Faulty Engine Control Module (ECM)
- Engine Control Module harness is open or shorted
- Engine Control Module circuit poor electrical connection
How to Fix the DTC B279C Toyota?
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 B279C Toyota 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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Information for Specific Toyota Models
- B279C 2013 Toyota RAV4 — Theft Deterrent System Presence Detection
- B279C 2014 Toyota RAV4 — Theft Deterrent System Presence Detection
- B279C 2015 Toyota RAV4 — Theft Deterrent System Presence Detection
- B279C 2016 Toyota RAV4 — Theft Deterrent System Presence Detection
- B279C 2017 Toyota RAV4 — Theft Deterrent System Presence Detection
- B279C 2018 Toyota RAV4 — Theft Deterrent System Presence Detection
Frequently Asked Questions about B279C Toyota Code
1. What are the common symptoms of OBDII code B279C in a Toyota related to Theft Deterrent System Presence Detection?
- Common symptoms include the inability to start the vehicle, flashing security light on the dashboard, and the vehicle going into anti-theft mode.
2. What causes the OBDII code B279C in a Toyota Theft Deterrent System Presence Detection?
- The code B279C is typically triggered by a faulty theft deterrent system module, damaged wiring, or a communication issue between the module and other vehicle systems.
3. How can I diagnose the OBDII code B279C in my Toyota related to Theft Deterrent System Presence Detection?
- Diagnosing the code may involve using a diagnostic scanner to retrieve the specific fault code, checking the wiring connections, inspecting the theft deterrent system module, and testing the communication between the module and other components.
4. Can I reset the OBDII code B279C in my Toyota related to Theft Deterrent System Presence Detection?
- Resetting the code may temporarily clear the error, but it is essential to diagnose and address the underlying issue to prevent the code from reappearing.
5. Is it safe to continue driving my Toyota with the OBDII code B279C related to Theft Deterrent System Presence Detection?
- It is not recommended to drive your vehicle with the code B279C active, as it may result in the vehicle going into anti-theft mode or further system malfunctions.
6. How much does it typically cost to repair the OBDII code B279C in a Toyota related to Theft Deterrent System Presence Detection?
- The cost of repair can vary depending on the exact cause of the code, but it may involve replacing the theft deterrent system module, repairing damaged wiring, or addressing communication issues, which could range from a few hundred to over a thousand dollars.
7. Are there any DIY repair tips for the OBDII code B279C in a Toyota related to Theft Deterrent System Presence Detection?
- DIY repair for this code may be challenging due to the complexity of the theft deterrent system. It is recommended to consult a professional mechanic with experience in diagnosing and repairing anti-theft system issues.
8. Can a software update fix the OBDII code B279C in a Toyota related to Theft Deterrent System Presence Detection?
- In some cases, a software update from the manufacturer may address communication issues causing the code B279C. It is advisable to consult with a Toyota dealership or qualified technician for software-related solutions.
9. Will disconnecting the battery reset the OBDII code B279C in a Toyota related to Theft Deterrent System Presence Detection?
- Disconnecting the battery may reset the code temporarily, but if the underlying issue is not addressed, the code is likely to reappear once the vehicle is driven and the system detects the fault again.
10. How can I prevent the OBDII code B279C related to Theft Deterrent System Presence Detection in my Toyota from occurring in the future?
- Regular maintenance and inspections of the theft deterrent system, checking for any wiring issues or corrosion, and addressing any warning signs promptly can help prevent the recurrence of the code B279C in the future.
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