B3130 2017 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 2017 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 2017 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 2017 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 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 B3130 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.
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Frequently Asked Questions about B3130 2017 GMC Sierra Code
1. What does the OBDII code B3130 mean on a 2017 GMC Sierra?
The B3130 code indicates a fault in the "All Doors Unlock Circuit," meaning the vehicle's body control module (BCM) has detected an issue with the system responsible for unlocking all doors.
2. What are the common symptoms of the B3130 code in a 2017 GMC Sierra?
Common symptoms include the inability to unlock all doors using the key fob, door switch, or automatic unlock feature, as well as possible illumination of a warning light on the dashboard.
3. What causes the B3130 code to appear on a GMC Sierra?
The code can be triggered by a faulty door lock actuator, damaged wiring or connectors in the unlock circuit, a blown fuse, or a malfunctioning body control module (BCM).
4. How do I diagnose the B3130 code on my GMC Sierra?
Start by checking the fuses and wiring for damage or loose connections. Then, inspect the door lock actuators and use a scan tool to monitor the BCM for related faults.
5. Can the B3130 code affect other vehicle functions?
Yes, it may interfere with other BCM-controlled systems, such as the keyless entry, door lock synchronization, or security system.
6. How do I fix the B3130 code on a 2017 GMC Sierra?
Repairs may include replacing a faulty door lock actuator, repairing damaged wiring or connectors, replacing a blown fuse, or reprogramming or replacing the BCM.
7. Is it safe to drive a 2017 GMC Sierra with the B3130 code?
While the vehicle may still be drivable, the inability to unlock all doors can pose a safety risk, especially in emergencies. It’s best to address the issue promptly.
8. How much does it cost to repair the B3130 code in a GMC Sierra?
Repair costs vary depending on the issue, but replacing a door lock actuator typically costs $150–$300, while BCM repairs or replacements can range from $300–$600 or more.
9. Can I reset the B3130 code without fixing the problem?
Clearing the code with a scan tool will not resolve the underlying issue, and the code is likely to return if the fault is not repaired.
10. What tools are needed to troubleshoot the B3130 code?
You’ll need a digital multimeter to check wiring and connections, a scan tool with BCM functionality, and possibly a service manual for the 2017 GMC Sierra to reference wiring diagrams.
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