B1271 GMC 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 GMC 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 GMC 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 GMC?
- Reprogram Radio
- Faulty Radio
How to Fix the DTC B1271 GMC?
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 GMC 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 GMC Models
- B1271 2014 GMC Sierra — Theft Protection Active
- B1271 2015 GMC Sierra — Theft Protection Active
- B1271 2016 GMC Sierra — Theft Protection Active
- B1271 2017 GMC Sierra — Theft Protection Active
- B1271 2018 GMC Sierra — Theft Protection Active
Frequently Asked Questions about B1271 GMC Code
1. What are the common symptoms of OBDII code B1271 GMC (Theft Protection Active)?
The common symptoms include the vehicle not starting, the security light staying on, and the engine stalling while driving.
2. What causes the OBDII code B1271 GMC (Theft Protection Active) to trigger?
This code is typically triggered by issues with the vehicle's anti-theft system, such as a faulty key fob, a problem with the ignition switch, or a malfunction in the security system module.
3. How can I diagnose the OBDII code B1271 GMC (Theft Protection Active)?
Diagnosing this code usually involves using a professional OBDII scanner to retrieve the specific trouble codes stored in the vehicle's computer system. Additionally, inspecting the key fob, ignition system, and security module for any visible signs of damage or malfunction can help identify the issue.
4. Are there any simple repairs I can try for OBDII code B1271 GMC (Theft Protection Active)?
Simple repair tips include checking the key fob battery, ensuring the key is programmed correctly, and verifying that the ignition switch is functioning properly. If these basic checks do not resolve the issue, professional assistance may be needed.
5. Can I reset the OBDII code B1271 GMC (Theft Protection Active) on my own?
Resetting this code may require a professional OBDII scanner to clear the trouble codes stored in the vehicle's computer system. However, addressing the underlying issue causing the code is crucial to prevent it from reoccurring.
6. Is it safe to drive my vehicle with the OBDII code B1271 GMC (Theft Protection Active) present?
It is not recommended to drive the vehicle with this code active, as it may lead to potential starting or stalling issues while driving. Addressing the problem promptly is essential for both safety and vehicle performance.
7. How much does it typically cost to repair OBDII code B1271 GMC (Theft Protection Active)?
The cost of repairing this code can vary depending on the specific cause of the issue. Simple fixes like replacing a key fob battery may be inexpensive, while more complex issues with the anti-theft system could require professional diagnostics and repairs, leading to higher costs.
8. Can extreme weather conditions trigger OBDII code B1271 GMC (Theft Protection Active)?
Extreme weather conditions, such as extreme cold or heat, can sometimes affect the performance of the vehicle's anti-theft system and potentially trigger this code. Keeping the key fob and ignition components protected from harsh weather can help prevent related issues.
9. Will disconnecting the battery reset OBDII code B1271 GMC (Theft Protection Active)?
Disconnecting the battery may reset the vehicle's computer system temporarily, but if the underlying issue causing the code is not addressed, it is likely to reappear once the vehicle is driven again. Professional diagnosis and repairs are recommended for a lasting solution.
10. How long does it typically take to repair OBDII code B1271 GMC (Theft Protection Active)?
The repair time for this code can vary depending on the complexity of the issue. Simple fixes like reprogramming a key fob can be quick, while more intricate problems with the security system may require more time for diagnostics and repairs.
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