B3920 2018 Chevrolet Silverado Code - Seat Motors Group 1 Common Circuit
Quick Answer
The B3920 diagnostic trouble code (DTC) for the 2018 Chevrolet Silverado relates to the Seat Motors Group 1 Common Circuit. Common causes include Damaged wiring in the seat motor circuit, Faulty seat motor, Blown fuse related to the seat motors. 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
- B3920 2018 Chevrolet Silverado indicates Seat Motors Group 1 Common Circuit.
- Common causes
- Common causes include Damaged wiring in the seat motor circuit, Faulty seat motor, Blown fuse related to the seat motors.
- 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 B3920 2018 Chevrolet Silverado Description
The B3920 diagnostic trouble code (DTC) for the 2018 Chevrolet Silverado relates to the Seat Motors Group 1 Common Circuit. This code indicates a problem with the electrical circuit that controls the seat motors in the vehicle. The seat motors are responsible for adjusting the position of the seats, including moving them forward, backward, up, and down. When this circuit malfunctions, it can lead to issues with the seat adjustment functionality.
Common Causes of B3920 2018 Chevrolet Silverado
- Damaged wiring in the seat motor circuit.
- Faulty seat motor.
- Blown fuse related to the seat motors.
- Malfunctioning seat control module.
Symptoms of B3920 2018 Chevrolet Silverado
- Inability to adjust the seat position.
- Seat stuck in one position.
- Unusual noises coming from the seat when trying to adjust it.
- Seat moving erratically or only in one direction.
How to Fix B3920 2018 Chevrolet Silverado
- Begin by conducting a visual inspection of the seat motor wiring and connections to check for any visible damage or loose connections.
- Use a multimeter to test the continuity of the wiring and check for any shorts or open circuits.
- Test the seat motor itself by applying power directly to it to see if it responds.
- Check and replace any blown fuses related to the seat motors.
- If necessary, replace the faulty seat motor or seat control module.
Cost to Fix B3920 2018 Chevrolet Silverado
The typical repair costs for addressing the B3920 code on a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $150 to $400. Keep in mind that these are rough estimates, and actual costs may vary based on factors such as location, labor rates, and the extent of the repairs needed. It's recommended to consult with a professional mechanic to get an accurate cost estimate for your specific situation.
Tech Notes for B3920 2018 Chevrolet Silverado
B3920 02 Group 1 Seat Motors Circuit Shorted to Ground
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Frequently Asked Questions about B3920 2018 Chevrolet Silverado Code
1. What does the OBDII code B3920 mean on a 2018 Chevrolet Silverado?
The B3920 code refers to a fault in the Seat Motors Group 1 Common Circuit, which typically involves an issue with the wiring, motor, or control related to the power seat system.
2. What are the common symptoms of code B3920 in a 2018 Chevrolet Silverado?
Common symptoms include the power seat not moving in one or more directions, intermittent seat operation, or complete failure of the seat motor.
3. What causes the B3920 code to appear on a 2018 Chevrolet Silverado?
Causes may include damaged wiring, a faulty seat motor, a malfunctioning seat control module, or a poor ground connection in the seat motor circuit.
4. Can I still drive my 2018 Chevrolet Silverado with the B3920 code active?
Yes, you can still drive the vehicle, but the power seat functionality may be limited or inoperative, which could affect comfort and proper seating adjustment.
5. How do I diagnose the B3920 code on my 2018 Chevrolet Silverado?
Diagnosis involves checking the wiring and connectors for damage, testing the seat motor for proper operation, and verifying the functionality of the seat control module.
6. How do I fix the B3920 code in a 2018 Chevrolet Silverado?
Repairs may include replacing damaged wires, repairing or replacing the seat motor, or reprogramming or replacing the seat control module if necessary.
7. Is the B3920 code a common issue in the 2018 Chevrolet Silverado?
It’s not extremely common but can occur, especially if the seat system experiences wear and tear or electrical issues over time.
8. How much does it cost to repair the B3920 code in a 2018 Chevrolet Silverado?
Repair costs vary depending on the issue, ranging from $50 to $150 for minor wiring fixes to $500 or more if the seat motor or control module requires replacement.
9. Can I clear the B3920 code without fixing the problem?
Clearing the code without addressing the underlying issue will likely result in the code returning, as the root cause remains unresolved.
10. Do I need professional help to fix the B3920 code in my 2018 Chevrolet Silverado?
While some issues like inspecting connectors and wires can be done at home, more complex repairs like motor or module replacement may require professional expertise.
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