AutoCodes – Buick – B3106 Buick

B3106 Buick Code - Keyless Entry Data Link

Quick Answer

The Body Control Module (BCM) communicates with the Remote Control Door Lock Receiver (RCDLR) through the keyless entry serial data circuits. Common causes include Faulty Remote Control Door Lock Receiver (RCDLR), Remote Control Door Lock Receiver harness is open or shorted, Remote Control Door Lock Receiver circuit poor electrical connection. 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: B3106 Buick indicates Keyless Entry Data Link.
Common causes: Common causes include Faulty Remote Control Door Lock Receiver (RCDLR), Remote Control Door Lock Receiver harness is open or shorted, Remote Control Door Lock Receiver circuit poor electrical connection.
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 1,585

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 B3106 Buick Description

The Body Control Module (BCM) communicates with the Remote Control Door Lock Receiver (RCDLR) through the keyless entry serial data circuits. When any button on the keyless entry transmitter is pressed, the transmitter sends a signal to the RCDLR. The RCDLR sends a function request to the body control module, depending on which button is pressed on the transmitter. The BCM receives the message and performs the appropriate function. The Diagnostic Trouble Code (DTC) will be set when the transmitter that is sending a signal to the RCDLR is different from those transmitters stored in the BCM.

OBDII Code B3106 Buick - Keyless Entry Data Link - AutoCodes.com — B3106 Buick Code - Keyless Entry Data Link

What does this mean?

What are the Possible Causes of the DTC B3106 Buick?

Faulty Remote Control Door Lock Receiver (RCDLR)
Remote Control Door Lock Receiver harness is open or shorted
Remote Control Door Lock Receiver circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3106 Buick?

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 B3106 Buick 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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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 B3106 Buick Code

1. What does OBDII code B3106 mean on a Buick?

Code B3106 indicates an issue with the Keyless Entry Data Link, which involves communication between the keyless entry system and the vehicle's control modules.

2. What are the common symptoms of code B3106 on a Buick?

Symptoms include the key fob not working to lock/unlock doors, inability to start the car with push-button ignition, or intermittent keyless entry functionality.

3. What causes the B3106 code on a Buick?

Common causes include a malfunctioning key fob, a faulty keyless entry control module, damaged wiring, or poor connections in the data link circuit.

4. Can a dead key fob battery trigger the B3106 code?

Yes, a dead or weak key fob battery can prevent proper communication, potentially causing the B3106 code to appear.

5. How do I diagnose code B3106 on a Buick?

Start by checking the key fob battery, inspecting the wiring and connectors for damage, and using a scan tool to check for additional related codes.

6. Is the B3106 code specific to Buicks with push-button start?

While more common in vehicles with push-button start, the B3106 code can also appear in Buicks with traditional ignition systems if they use keyless entry.

7. Can reprogramming the key fob resolve the B3106 code?

If the issue lies with the key fob or its programming, reprogramming it may solve the problem. However, other causes should be ruled out first.

8. How much does it cost to fix a B3106 code on a Buick?

Repair costs vary depending on the cause but may range from $50 for a new key fob battery to $500 or more if the keyless entry module needs replacement.

9. Can a software update clear the B3106 code?

In some cases, a software update for the vehicle's control modules may resolve communication issues and clear the B3106 code.

10. Is it safe to drive with the B3106 code on a Buick?

Yes, but you may lose keyless entry and push-button start functionality, which can be inconvenient or prevent the vehicle from starting. Prompt diagnosis is recommended.