AutoCodes – GMC – B3150 2016 GMC Sierra

B3150 2016 GMC Sierra Code - Driver Door Lock Switch Circuit

Quick Answer

The Body Control Module (BCM) monitors the voltage level of the door lock and door unlock signal circuits. Common causes include Faulty Driver Door Lock Switch, Driver Door Lock Switch harness is open or shorted, Driver Door Lock Switch 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: B3150 2016 GMC Sierra indicates Driver Door Lock Switch Circuit.
Common causes: Common causes include Faulty Driver Door Lock Switch, Driver Door Lock Switch harness is open or shorted, Driver Door Lock Switch 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 192

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
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B3150 2016 GMC Sierra Description

The Body Control Module (BCM) monitors the voltage level of the door lock and door unlock signal circuits. When the driver door lock switch is in the open position, the voltage level in the signal circuit will be near 12 V. When the driver door lock switch is pressed to the lock or unlock position, the voltage level in the appropriate signal circuit will drop to 0 V and the BCM will detect the voltage drop and command the door latches to perform the requested lock or unlock command. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a short to ground in the switch circuit.

OBDII Code B3150 2016 GMC Sierra - Driver Door Lock Switch Circuit - AutoCodes.com — B3150 2016 GMC Sierra Code - Driver Door Lock Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B3150 2016 GMC Sierra?

Faulty Driver Door Lock Switch
Driver Door Lock Switch harness is open or shorted
Driver Door Lock Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3150 2016 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 does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3150 2016 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.

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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 B3150 2016 GMC Sierra Code

1. What does the OBDII code B3150 mean on a 2016 GMC Sierra?

The B3150 code indicates an issue with the driver door lock switch circuit, typically involving a malfunction or communication error in the door lock switch system.

2. What are common symptoms of a B3150 code on a 2016 GMC Sierra?

Common symptoms include the driver door lock not working, intermittent operation, or the door lock switch being unresponsive.

3. What causes the B3150 code to appear on a 2016 GMC Sierra?

The code can be triggered by a faulty door lock switch, damaged wiring or connectors, a blown fuse, or a problem with the Body Control Module (BCM).

4. Can I still drive my 2016 GMC Sierra with the B3150 code active?

Yes, the vehicle is still drivable, but the driver door lock may not function properly, which could be inconvenient or pose a security risk.

5. How do I fix the B3150 code on a 2016 GMC Sierra?

First, inspect the door lock switch, wiring, and connectors for damage. Replace the faulty components or repair damaged wiring. If the issue persists, the BCM may need to be reprogrammed or replaced.

6. How can I test the driver door lock switch for the B3150 code on a 2016 GMC Sierra?

You can use a multimeter to check for continuity in the door lock switch and ensure proper voltage is being supplied to the circuit.

7. Could a blown fuse cause the B3150 code in a 2016 GMC Sierra?

Yes, a blown fuse related to the door lock system could interrupt the circuit and trigger the code. Check and replace the fuse if necessary.

8. Will clearing the B3150 code fix the issue on my 2016 GMC Sierra?

Clearing the code may temporarily remove it, but the issue will likely return unless the root cause is identified and repaired.

9. Does the B3150 code always mean the driver door lock switch is bad?

No, the code could also result from wiring issues, a faulty BCM, or poor electrical connections, not just a defective switch.

10. Do I need professional assistance to fix the B3150 code on a 2016 GMC Sierra?

If you're comfortable with basic electrical diagnostics and repairs, you can attempt to fix it yourself. However, more complex issues like BCM reprogramming may require professional help.