B1271 Chevrolet Code - Theft Protection Active
Quick Answer
When the radio is initially installed in the vehicle, the radio receives Vehicle Identification Number (VIN) information via serial data. Common causes include Reprogram Radio, Faulty Radio. 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
- B1271 Chevrolet indicates Theft Protection Active.
- Common causes
- Common causes include Reprogram Radio, Faulty Radio.
- 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 B1271 Chevrolet Description
The radio theft deterrent system is intended to disable or limit radio functionality if incorrect vehicle information is received by radio. The radio disables functionality if the VIN information received by the radio does not match the VIN information that has been learned by the radio. This Diagnostic Trouble Code (DTC) is generated by the module when the Theft Protection is activated.
The DTC will be set when the radio receives the correct VIN information via serial data.
What are the Possible Causes of the DTC B1271 Chevrolet?
- Reprogram Radio
- Faulty Radio
How to Fix the DTC B1271 Chevrolet?
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 B1271 Chevrolet 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 B1271 Chevrolet code?
Need more information on how to fix the B1271 Chevrolet code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1271 Chevrolet code diagnosed by a professional: Find a repair shop in your area
Information for Specific Chevrolet Models
- B1271 2014 Chevrolet Silverado — Theft Protection Active
- B1271 2015 Chevrolet Silverado — Theft Protection Active
- B1271 2016 Chevrolet Silverado — Theft Protection Active
- B1271 2017 Chevrolet Silverado — Theft Protection Active
- B1271 2018 Chevrolet Silverado — Theft Protection Active
Frequently Asked Questions about B1271 Chevrolet Code
1. What does OBDII code B1271 Chevrolet mean?
The code B1271 on a Chevrolet indicates that the theft protection system is active and may be preventing the vehicle from starting.
2. What are the common symptoms of OBDII code B1271 Chevrolet?
Common symptoms of code B1271 include the engine not starting, the theft system light flashing or staying on, and the vehicle not responding to the key fob.
3. What are the possible causes of OBDII code B1271 Chevrolet?
Possible causes of code B1271 include a faulty key fob, a problem with the key or ignition cylinder, issues with the theft protection module, or a wiring fault in the theft system circuit.
4. How can I troubleshoot OBDII code B1271 Chevrolet?
To troubleshoot code B1271, try using a different key fob, ensure the key is properly programmed, check for any blown fuses related to the theft system, and inspect the wiring for any damage.
5. Can I reset OBDII code B1271 Chevrolet myself?
In some cases, you may be able to reset code B1271 by disconnecting the vehicle's battery for a few minutes and then reconnecting it. However, it's important to diagnose and address the underlying issue causing the code to prevent it from recurring.
6. Is OBDII code B1271 Chevrolet something I can ignore?
It is not recommended to ignore OBDII code B1271, as it indicates a potential issue with the vehicle's theft protection system that could result in the vehicle not starting or being stolen.
7. How much does it typically cost to repair OBDII code B1271 Chevrolet?
The cost to repair code B1271 can vary depending on the underlying cause. Simple fixes like replacing a key fob battery may be inexpensive, while repairs involving the theft protection module or wiring could be more costly.
8. Can OBDII code B1271 Chevrolet be fixed at home?
Some simple fixes for code B1271, such as checking the key fob or key programming, can be done at home. However, more complex issues with the theft protection system may require professional diagnosis and repair.
9. Will OBDII code B1271 Chevrolet prevent my vehicle from starting?
In some cases, code B1271 can prevent the vehicle from starting if the theft protection system is activated and not recognizing the key or key fob. Addressing the underlying cause of the code is essential to resolve this issue.
10. How can I prevent OBDII code B1271 Chevrolet from happening again?
To prevent code B1271 from recurring, ensure your key fob is in good working condition, have spare keys programmed, and regularly inspect the theft protection system components for any signs of wear or damage.
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