B3130 2014 GMC Sierra 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 2014 GMC Sierra 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.
Code B3130 2014 GMC Sierra Description
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.
What are the Possible Causes of the DTC B3130 2014 GMC Sierra?
- 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 2014 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 B3130 2014 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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Frequently Asked Questions about B3130 2014 GMC Sierra Code
1. What does the OBDII code B3130 mean on a 2014 GMC Sierra?
B3130 indicates an issue with the "All Doors Unlock Circuit," meaning the system responsible for unlocking all doors has a malfunction.
2. What are common symptoms of the B3130 code on a 2014 GMC Sierra?
Symptoms may include the inability to unlock all doors using the key fob, delayed or intermittent unlocking, or a door lock/unlock function that doesn’t work at all.
3. What causes the B3130 code to appear?
The code can be triggered by faulty wiring, a malfunctioning door lock actuator, a problem with the body control module (BCM), or a defective key fob.
4. Can a weak vehicle battery cause the B3130 code?
Yes, a weak or failing vehicle battery can cause electrical issues, including triggering the B3130 code.
5. How is the B3130 code diagnosed?
A technician will use a scan tool to verify the code, inspect the wiring and connectors in the door unlock circuit, and test the functionality of the door lock actuators and BCM.
6. Is the B3130 code a serious issue?
While it doesn’t typically affect vehicle drivability, it can be inconvenient and compromise security if the doors do not unlock as intended.
7. Can I fix the B3130 code myself?
If you’re comfortable, you can check for loose or damaged wiring and inspect the fuses. However, diagnosing BCM or actuator issues usually requires professional tools and expertise.
8. How much does it cost to fix the B3130 code?
Repair costs depend on the root cause but may range from $100 for a wiring repair to $500 or more for a BCM replacement.
9. Will clearing the B3130 code fix the issue?
Clearing the code with a scan tool may temporarily reset it, but the underlying issue must be repaired to prevent it from returning.
10. Can a faulty key fob cause the B3130 code?
Yes, a malfunctioning or improperly programmed key fob can lead to issues with the all doors unlock circuit and trigger the B3130 code.
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