AutoCodes – Chevrolet – B3109 2014 Chevrolet Silverado

B3109 2014 Chevrolet Silverado Code - Keyless Entry Transmitter 1 Battery

Quick Answer

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the Remote Control Door Lock Receiver (RCDLR), along with the commanded keyless entry function. Common causes include Low Keyless Entry Transmitter Battery, Faulty Keyless Entry Transmitter. 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: B3109 2014 Chevrolet Silverado indicates Keyless Entry Transmitter 1 Battery.
Common causes: Common causes include Low Keyless Entry Transmitter Battery, Faulty Keyless Entry Transmitter.
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 Popularity 350

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 11, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3109 2014 Chevrolet Silverado Description

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the Remote Control Door Lock Receiver (RCDLR), along with the commanded keyless entry function. The Remote Control Door Lock Receiver sends this to the Body Control Module (BCM) to perform the requested function. The Diagnostic Trouble Code (DTC) sets when three consecutive low-battery signals are received from the same transmitter.

OBDII Code B3109 2014 Chevrolet Silverado - Keyless Entry Transmitter 1 Battery - AutoCodes.com — B3109 2014 Chevrolet Silverado Code - Keyless Entry Transmitter 1 Battery

What does this mean?

What are the Possible Causes of the DTC B3109 2014 Chevrolet Silverado?

Low Keyless Entry Transmitter Battery
Faulty Keyless Entry Transmitter

How to Fix the DTC B3109 2014 Chevrolet Silverado?

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 B3109 2014 Chevrolet Silverado 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 B3109 2014 Chevrolet Silverado code?

Need more information on how to fix the B3109 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B3109 2014 Chevrolet Silverado Code

1. What does OBDII code B3109 for a 2014 Chevrolet Silverado indicate?

The code B3109 specifically relates to the Keyless Entry Transmitter 1 Battery in the Chevrolet Silverado's keyless entry system.

2. What are the common symptoms of OBDII code B3109 in a 2014 Chevrolet Silverado?

Common symptoms include issues with the keyless entry system such as the remote not working properly or the vehicle not responding to keyless entry commands.

3. What are the possible causes of OBDII code B3109 in a 2014 Chevrolet Silverado?

The most common cause is a low or dead battery in the key fob. Other causes could include a faulty key fob or issues with the keyless entry system itself.

4. How can I diagnose the issue related to OBDII code B3109 in my 2014 Chevrolet Silverado?

Start by replacing the battery in the key fob. If the issue persists, try using a spare key fob to see if the problem lies with the remote itself or the vehicle's keyless entry system.

5. Can I repair OBDII code B3109 in my 2014 Chevrolet Silverado myself?

Yes, in many cases, replacing the key fob battery or even the key fob itself can resolve the issue. If the problem is more complex, it may require professional diagnosis and repair.

6. Is it safe to continue driving my 2014 Chevrolet Silverado with OBDII code B3109?

Yes, it is generally safe to continue driving, but you may experience inconvenience with the keyless entry system until the issue is resolved.

7. How much does it cost to repair OBDII code B3109 in a 2014 Chevrolet Silverado?

The cost can vary depending on the exact cause of the issue. Replacing a key fob battery is relatively inexpensive, while a faulty key fob or more serious keyless entry system problems could be more costly.

8. Can a dealership or auto repair shop help me with OBDII code B3109 in my 2014 Chevrolet Silverado?

Yes, both dealerships and auto repair shops have the tools and expertise to diagnose and repair issues related to the keyless entry system and OBDII codes like B3109.

9. How often should I replace the battery in the key fob of my 2014 Chevrolet Silverado to prevent OBDII code B3109?

It is recommended to replace the key fob battery every 1-2 years or as soon as you notice decreased performance in the keyless entry system.

10. Are there any preventive measures I can take to avoid OBDII code B3109 in my 2014 Chevrolet Silverado?

Regularly checking and replacing the key fob battery, keeping the key fob clean and dry, and avoiding physical damage to the key fob can help prevent issues leading to OBDII code B3109.