AutoCodes – GMC – B3105 2017 GMC Sierra

B3105 2017 GMC Sierra Code - Keyless Entry Transmitters

Quick Answer

The Body Control Module (BCM) monitors the number of keyless entry transmitters programmed. Common causes include Faulty Keyless Entry Transmitters, Faulty Body Control Module (BCM). 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 2017 GMC Sierra indicates Keyless Entry Transmitters.
Common causes: Common causes include Faulty Keyless Entry Transmitters, Faulty Body Control Module (BCM).
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 302

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 B3105 2017 GMC Sierra Description

The Body Control Module (BCM) monitors the number of keyless entry transmitters programmed. Until at least one transmitter is programmed, the Body Control Module determines a malfunction condition exists. The Diagnostic Trouble Code (DTC) will be set when no keyless entry transmitter is programmed to the Body Control Module.

OBDII Code B3105 2017 GMC Sierra - Keyless Entry Transmitters - AutoCodes.com — B3105 2017 GMC Sierra Code - Keyless Entry Transmitters

What does this mean?

What are the Possible Causes of the DTC B3105 2017 GMC Sierra?

Faulty Keyless Entry Transmitters
Faulty Body Control Module (BCM)

How to Fix the DTC B3105 2017 GMC Sierra?

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 B3105 2017 GMC Sierra 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 B3105 2017 GMC Sierra 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 B3105 2017 GMC Sierra Code

1. What does OBDII code B3105 for a 2017 GMC Sierra indicate?

The B3105 code for a 2017 GMC Sierra relates to a problem with the keyless entry transmitters.

2. What are the common symptoms of OBDII code B3105 in a 2017 GMC Sierra?

Common symptoms include issues with keyless entry functionality, such as the remote not working to lock or unlock the vehicle.

3. What are some possible causes of OBDII code B3105 in a 2017 GMC Sierra?

Potential causes of the B3105 code can include faulty keyless entry transmitters, damaged wiring, or issues with the receiver module.

4. How can I diagnose the OBDII code B3105 in my 2017 GMC Sierra?

Diagnosing the B3105 code may involve using a scan tool to retrieve the specific trouble code and testing the keyless entry system components for proper functioning.

5. Are there any DIY repair tips for fixing OBDII code B3105 on a 2017 GMC Sierra?

DIY repair tips may include checking the batteries in the keyless entry transmitters, ensuring they are properly synced with the vehicle, and inspecting for any visible damage to the transmitters or wiring.

6. Can OBDII code B3105 in a 2017 GMC Sierra affect other vehicle systems?

While the B3105 code primarily relates to keyless entry transmitters, if left unresolved, it could potentially impact other related systems like the vehicle's security system.

7. Is it safe to continue driving with OBDII code B3105 present in a 2017 GMC Sierra?

It is generally safe to drive with the B3105 code, but it is recommended to address the issue promptly to avoid inconvenience or potential security concerns related to keyless entry.

8. How much does it typically cost to repair OBDII code B3105 on a 2017 GMC Sierra?

The cost of repairing the B3105 code can vary depending on the specific cause, but it may involve expenses for diagnosing the issue, replacing keyless entry transmitters, or repairing wiring.

9. Can a dealership or auto repair shop help with fixing OBDII code B3105 on a 2017 GMC Sierra?

Yes, a dealership or a reputable auto repair shop with experience in handling keyless entry systems can assist in diagnosing and repairing the B3105 code in a 2017 GMC Sierra.

10. How can I prevent OBDII code B3105 from occurring again in my 2017 GMC Sierra?

To prevent the recurrence of the B3105 code, it is advisable to regularly check the condition of keyless entry transmitters, replace batteries as needed, and address any issues promptly to maintain the system's functionality.