Engine-CodesChevrolet – B3105 2016 Chevrolet Silverado

B3105 2016 Chevrolet Silverado Code - Keyless Entry Transmitters

Quick Answer

The B3105 diagnostic trouble code (DTC) specifically pertains to the keyless entry transmitter system in the 2016 Chevrolet Silverado. Common causes include Weak or dead battery in the keyless entry transmitter (key fob), Damaged or corroded key fob circuitry, Faulty Body Control Module (BCM) or its programming. 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
B3105 2016 Chevrolet Silverado indicates Keyless Entry Transmitters.
Common causes
Common causes include Weak or dead battery in the keyless entry transmitter (key fob), Damaged or corroded key fob circuitry, Faulty Body Control Module (BCM) or its programming.
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.
Table of contents Created and updated by William Orellana on Oct 10, 2024
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Code B3105 2016 Chevrolet Silverado Description

The B3105 diagnostic trouble code (DTC) specifically pertains to the keyless entry transmitter system in the 2016 Chevrolet Silverado. This code indicates that there is a malfunction related to the keyless entry transmitters, which are essential for remote locking and unlocking of the vehicle doors, as well as for activating the vehicle's alarm system. The keyless entry system operates through radio frequency signals sent from the transmitter (key fob) to the vehicle's receiver module.

OBDII Code B3105 2016 Chevrolet Silverado - Keyless Entry Transmitters
B3105 2016 Chevrolet Silverado Code - Keyless Entry Transmitters

Common Causes of B3105 2016 Chevrolet Silverado

  1. Weak or dead battery in the keyless entry transmitter (key fob).
  2. Damaged or corroded key fob circuitry.
  3. Faulty Body Control Module (BCM) or its programming.
  4. Wiring issues, such as short circuits or open circuits in the keyless entry system.
  5. Environmental interference, such as proximity to other electronic devices that may disrupt the signal.

Symptoms of B3105 2016 Chevrolet Silverado

  1. Inability to lock or unlock the doors using the key fob.
  2. Key fob not recognized by the vehicle, leading to starting issues.
  3. Intermittent operation of the keyless entry system.
  4. Alarm system malfunctioning or false alarms occurring.
  5. Dashboard warning lights related to the keyless entry system illuminated.

How to Fix B3105 2016 Chevrolet Silverado

  1. Battery Replacement: Start by replacing the battery in the key fob to ensure it has sufficient power to transmit signals effectively.
  2. Key Fob Inspection: Examine the key fob for physical damage or corrosion on the contacts. If damaged, consider replacing the fob.
  3. BCM Diagnostics: Use a professional scan tool to check the BCM for any software updates or fault codes that may indicate a deeper issue.
  4. Wiring Check: Inspect the wiring harness connected to the BCM and the keyless entry receiver for any signs of wear, damage, or corrosion.
  5. Reprogramming: If the key fob is functional but not recognized, reprogram the key fob to the vehicle's BCM, following the manufacturer's instructions.

Cost to Fix B3105 2016 Chevrolet Silverado

The typical repair costs for addressing a B3105 code can vary widely based on the specific issue identified. For instance, replacing a key fob battery may cost around $10 to $20, while a new key fob can range from $50 to $300, depending on the model and programming requirements. If the BCM needs to be replaced or reprogrammed, costs can escalate to $200 to $600 or more, including parts and labor.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B3105 2016 Chevrolet Silverado Code

1. What does OBDII code B3105 in a 2016 Chevrolet Silverado indicate?

The B3105 code in a 2016 Chevrolet Silverado typically relates to an issue with the keyless entry transmitters.

2. What are the common symptoms of OBDII code B3105 in a Chevrolet Silverado?

Common symptoms of code B3105 may include key fob malfunction, inability to lock or unlock the vehicle remotely, and intermittent issues with the keyless entry system.

3. What are the possible causes of OBDII code B3105 in a Chevrolet Silverado?

Potential causes of B3105 code may include a faulty key fob, a weak or dead key fob battery, issues with the vehicle's receiver module, or wiring/connectivity problems.

4. How can I diagnose the OBDII code B3105 in my Chevrolet Silverado?

Diagnosing code B3105 typically involves checking the key fob battery, inspecting the key fob for physical damage, testing the vehicle's receiver module, and ensuring there are no wiring issues.

5. Can a DIY enthusiast repair OBDII code B3105 in a Chevrolet Silverado?

DIY repairs for code B3105 may include replacing the key fob battery, reprogramming the key fob, or checking and repairing any visible wiring/connectivity issues. However, complex issues may require professional diagnosis and repair.

6. Is it safe to continue driving with OBDII code B3105 present in a Chevrolet Silverado?

While code B3105 is related to keyless entry transmitters and may not directly affect the vehicle's drivability, it's recommended to address the issue promptly to ensure proper functioning of the keyless entry system.

7. Can a reset or reboot fix OBDII code B3105 in a Chevrolet Silverado?

A simple reset or reboot of the keyless entry system may sometimes resolve minor issues causing code B3105. Try disconnecting the vehicle's battery for a few minutes and reconnecting it to see if the problem clears.

8. How much does it typically cost to repair OBDII code B3105 in a Chevrolet Silverado?

The cost of repairing B3105 code can vary depending on the specific cause of the issue. Simple fixes like key fob battery replacement may be inexpensive, while more complex repairs involving module replacement or wiring repairs can be costlier.

9. Can extreme weather conditions affect OBDII code B3105 in a Chevrolet Silverado?

Extreme temperatures or moisture exposure can sometimes impact the performance of keyless entry transmitters, potentially leading to issues like code B3105. Protecting key fobs from such conditions may help prevent problems.

10. How often should key fob batteries be replaced to prevent OBDII code B3105 in a Chevrolet Silverado?

It's generally advisable to replace key fob batteries every 1-2 years or when they show signs of weakening to avoid keyless entry system malfunctions and potential codes like B3105 in a Chevrolet Silverado.

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