B3112 2016 GMC Sierra Code - Keyless Entry Transmitter 4 Battery
Quick Answer
The B3112 diagnostic trouble code (DTC) pertains specifically to the keyless entry system of the 2016 GMC Sierra, indicating an issue with the battery of the fourth keyless entry transmitter. Common causes include Weak or dead battery in the keyless entry transmitter, Corrosion or poor connection at the battery terminals within the key fob, Faulty key fob circuitry or internal components. 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
- B3112 2016 GMC Sierra indicates Keyless Entry Transmitter 4 Battery.
- Common causes
- Common causes include Weak or dead battery in the keyless entry transmitter, Corrosion or poor connection at the battery terminals within the key fob, Faulty key fob circuitry or internal components.
- 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 B3112 2016 GMC Sierra Description
The B3112 diagnostic trouble code (DTC) pertains specifically to the keyless entry system of the 2016 GMC Sierra, indicating an issue with the battery of the fourth keyless entry transmitter. This code is generated when the vehicle's onboard diagnostic system detects that the battery voltage in the key fob is below a specified threshold, which can lead to impaired functionality of the keyless entry system.
Common Causes of B3112 2016 GMC Sierra
- Weak or dead battery in the keyless entry transmitter.
- Corrosion or poor connection at the battery terminals within the key fob.
- Faulty key fob circuitry or internal components.
- Interference from other electronic devices or signals.
- Programming issues with the key fob that may require reprogramming.
Symptoms of B3112 2016 GMC Sierra
- Inability to unlock or lock the doors using the key fob.
- Intermittent functionality of the keyless entry system.
- Warning light on the dashboard indicating a key fob issue.
- Reduced range of the key fob when attempting to unlock or lock the vehicle.
- The vehicle may not start if the key fob is not recognized.
How to Fix B3112 2016 GMC Sierra
- Battery Replacement: Open the key fob and replace the old battery with a new one, ensuring the correct polarity is observed.
- Inspect Connections: Check for any corrosion or damage at the battery terminals and clean or repair as necessary.
- Test Key Fob Functionality: After replacing the battery, test the key fob to ensure it is functioning properly.
- Reprogram Key Fob: If the key fob is still not working, it may need to be reprogrammed to the vehicle, which can typically be done using an OBD-II scanner.
- Replace Key Fob: If all else fails, consider replacing the key fob entirely if it is determined to be faulty.
Cost to Fix B3112 2016 GMC Sierra
The cost to resolve the B3112 code can vary significantly based on the specific issue identified. For a simple battery replacement, the cost may range from $5 to $20 for the battery itself. If reprogramming is required, labor costs can add an additional $50 to $100, depending on the shop's hourly rate. In total, if a new key fob is necessary, costs could escalate to $150 to $400, including parts and labor.
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Frequently Asked Questions about B3112 2016 GMC Sierra Code
1. What does OBDII code B3112 mean on a 2016 GMC Sierra?
Code B3112 indicates an issue with the battery in the keyless entry transmitter 4, such as being low or dead.
2. What are the symptoms of code B3112 in a 2016 GMC Sierra?
Common symptoms include the failure of the fourth keyless entry transmitter to lock or unlock the doors, start the vehicle remotely, or function properly.
3. What causes the B3112 code to appear?
The most common cause is a low or dead battery in the keyless entry transmitter 4. Other potential causes include a damaged key fob or communication issues between the fob and the vehicle.
4. How do I fix the B3112 code on my 2016 GMC Sierra?
Replace the battery in keyless entry transmitter 4. If the issue persists, check the transmitter for physical damage or reprogram it if necessary.
5. How do I replace the battery in the keyless entry transmitter?
Open the key fob using a small flathead screwdriver, remove the old battery, and install a new one. Ensure the replacement battery matches the recommended type (usually CR2032).
6. Can a damaged key fob cause the B3112 code?
Yes, physical damage to the key fob, such as cracked housing or water intrusion, can prevent it from functioning and trigger the B3112 code.
7. Will the B3112 code affect other key fobs on my 2016 GMC Sierra?
No, this code specifically relates to keyless entry transmitter 4. Other fobs should function normally unless they also experience issues.
8. Do I need to reprogram the key fob after replacing the battery?
In most cases, reprogramming is not necessary after replacing the battery. However, if the fob still doesn't work, reprogramming or further diagnostics may be required.
9. Can I clear the B3112 code without fixing the issue?
You can clear the code using an OBDII scanner, but it will likely return unless the underlying issue, such as a dead battery, is resolved.
10. How can I prevent the B3112 code from recurring?
Regularly check and replace the key fob battery as needed, avoid exposing the fob to extreme conditions, and handle it carefully to prevent damage.
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