AutoCodesChevrolet – B3130 2018 Chevrolet Silverado

B3130 2018 Chevrolet Silverado Code - All Doors Unlock Circuit

Quick Answer

The Body Control Module (BCM) supplies a 12-volt signal to the lock and unlock signal circuits of the driver and passenger door lock switches. Common causes include Faulty Door Latch Assembly, Door Latch Assembly harness is open or shorted, Door Latch Assembly 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
B3130 2018 Chevrolet Silverado indicates All Doors Unlock Circuit.
Common causes
Common causes include Faulty Door Latch Assembly, Door Latch Assembly harness is open or shorted, Door Latch Assembly 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 230
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 11, 2023
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Code B3130 2018 Chevrolet Silverado Description

The Body Control Module (BCM) supplies a 12-volt signal to the lock and unlock signal circuits of the driver and passenger door lock switches. When the appropriate switch is pressed, a contact within the door lock switch closes providing a ground path for the signal circuit. The BCM will detect the voltage drop in the signal and will command the doors to perform the lock or unlock functions. The BCM may also receive a LOCK or UNLOCK command from the Keyless Entry Control Module.
The BCM, upon receipt of a lock switch lock or unlock signal, will supply voltage to the door lock actuator lock or unlock control circuits. Since the opposite side of the lock actuator is connected to the ground through the other lock actuator control circuit, the doors will then lock or unlock as commanded. The Diagnostic Trouble Code (DTC) sets when the BCM detects a short to ground or open/high resistance on a door latch control circuit.
OBDII Code B3130 2018 Chevrolet Silverado - All Doors Unlock Circuit - AutoCodes.com
B3130 2018 Chevrolet Silverado Code - All Doors Unlock Circuit

What are the Possible Causes of the DTC B3130 2018 Chevrolet Silverado?

  • Faulty Door Latch Assembly
  • Door Latch Assembly harness is open or shorted
  • Door Latch Assembly circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B3130 2018 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3130 2018 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 B3130 2018 Chevrolet Silverado code?

Need more information on how to fix the B3130 2018 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 B3130 2018 Chevrolet Silverado Code

1. What does the OBDII code B3130 for a 2018 Chevrolet Silverado mean?

The code B3130 indicates an issue with the All Doors Unlock Circuit in the vehicle.

2. What are some common symptoms of the B3130 code in a 2018 Chevrolet Silverado?

Common symptoms include difficulty unlocking all doors using the remote or interior buttons, doors not unlocking at all, or intermittent door unlocking issues.

3. What are possible causes of the B3130 code in a 2018 Chevrolet Silverado?

Potential causes include faulty door lock actuators, damaged wiring or connectors in the door lock system, a malfunctioning body control module (BCM), or a blown fuse related to the door locks.

4. How can I diagnose the B3130 code in my 2018 Chevrolet Silverado?

Diagnosing the B3130 code may involve checking the door lock actuators, inspecting the wiring and connectors for damage, testing the BCM for proper functioning, and verifying the integrity of relevant fuses.

5. How can I repair the All Doors Unlock Circuit issue indicated by the B3130 code in my 2018 Chevrolet Silverado?

Depending on the root cause, repairs may involve replacing faulty door lock actuators, repairing or replacing damaged wiring or connectors, reprogramming the BCM, or replacing blown fuses related to the door lock system.

6. Can the B3130 code in a 2018 Chevrolet Silverado cause any safety concerns?

While the B3130 code itself may not pose immediate safety risks, malfunctioning door locks can compromise the security of the vehicle and may hinder quick exit in emergency situations.

7. Is it possible to reset the B3130 code in a 2018 Chevrolet Silverado without addressing the underlying issue?

Resetting the code without fixing the root cause may temporarily clear the error code, but the issue with the All Doors Unlock Circuit will likely persist and trigger the code again in the future.

8. How can I prevent the B3130 code from recurring in my 2018 Chevrolet Silverado?

Regularly inspecting and maintaining the door lock system, promptly addressing any door lock issues, and ensuring proper installation of aftermarket accessories can help prevent the B3130 code from reappearing.

9. Can a DIY enthusiast tackle the repair of the B3130 code in a 2018 Chevrolet Silverado?

Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the All Doors Unlock Circuit issue associated with the B3130 code. However, complex electrical systems may require professional assistance.

10. Is it necessary to take my 2018 Chevrolet Silverado to a dealership for the B3130 code repair?

While a dealership may have specialized knowledge and tools for diagnosing and repairing the B3130 code, independent auto repair shops with experience in electrical systems can also effectively address the issue in a 2018 Chevrolet Silverado.

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