B3920 Code - Seat Motors Group 1 Common Circuit
Quick Answer
The B3920 diagnostic trouble code (DTC) refers to a Seat Motors Group 1 Common Circuit issue. Common causes include Damaged wiring in the seat motor circuit, Faulty seat motor, Loose or corroded electrical connections. 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 indicates Seat Motors Group 1 Common Circuit.
- Common causes
- Common causes include Damaged wiring in the seat motor circuit, Faulty seat motor, Loose or corroded electrical connections.
- 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 Description
The B3920 diagnostic trouble code (DTC) refers to a Seat Motors Group 1 Common Circuit issue. This code indicates a problem with the common circuit for the seat motors in the vehicle. The seat motors are responsible for adjusting the position of the seats, such as moving them forward or backward, up or down, and reclining the seatback. When this circuit malfunctions, it can affect the functionality of the seat motors, potentially leading to issues with seating comfort and adjustability.
Common Causes of B3920
- Damaged wiring in the seat motor circuit
- Faulty seat motor
- Loose or corroded electrical connections
- Issues with the vehicle's electrical system
- Water damage to the seat motor circuit
Symptoms of B3920
- Inability to adjust the seat position
- Seats stuck in one position
- Seat motors making unusual noises when activated
- Erratic seat movement when adjusting position
- Seat motors not responding to control inputs
How to Fix B3920
- Begin by conducting a visual inspection of the seat motor circuit wiring to check for any visible damage or corrosion.
- Use a multimeter to test the continuity of the wiring in the seat motor circuit to pinpoint any faulty connections.
- Test the seat motors themselves to determine if they are functioning correctly or if they need to be replaced.
- Check and tighten any loose electrical connections in the seat motor circuit to ensure a secure connection.
- If necessary, replace any damaged wiring, faulty seat motors, or other components contributing to the B3920 code.
Cost to Fix B3920
The typical repair costs for a B3920 code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost of parts for this repair could range from $100 to $300, while labor costs could range from $150 to $400. It's important to note that these are rough estimates and actual costs may vary based on factors such as the vehicle make and model, the location of the repair shop, and the availability of parts. Additionally, diagnosis time and labor rates at auto repair shops can fluctuate, so it's recommended to obtain quotes from multiple sources for a more accurate cost estimate.
Tech Notes for B3920
B3920 02 Group 1 Seat Motors Circuit Shorted to Ground
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Code B3920 Information for Specific Makes
- B3920 Buick — Seat Motors Group 1 Common Circuit
- B3920 Cadillac — Seat Motors Group 1 Common Circuit
- B3920 Chevrolet — Seat Motors Group 1 Common Circuit
- B3920 GMC — Seat Motors Group 1 Common Circuit
- B3920 Pontiac — Seat Motors Group 1 Common Circuit
- B3920 Saturn — Seat Motors Group 1 Common Circuit
Frequently Asked Questions about B3920 Code
1. What are the common symptoms of OBDII code B3920 related to Seat Motors Group 1 Common Circuit?
- Common symptoms include non-responsive seat motors, inability to adjust seat position, and erratic movement of the seat.
2. What are the possible causes of OBDII code B3920 Seat Motors Group 1 Common Circuit?
- Possible causes may include faulty seat motor, damaged wiring or connectors, blown fuse, or a malfunctioning control module.
3. How can I diagnose OBDII code B3920 for Seat Motors Group 1 Common Circuit?
- Diagnosis involves inspecting the seat motors, checking the wiring and connectors for damage, testing the control module, and verifying fuse integrity.
4. What are some repair tips for fixing OBDII code B3920 related to Seat Motors Group 1 Common Circuit?
- Repair tips include repairing or replacing faulty seat motors, repairing damaged wiring or connectors, replacing blown fuses, and reprogramming or replacing the control module if necessary.
5. Can I drive my vehicle with OBDII code B3920 Seat Motors Group 1 Common Circuit?
- It is not recommended to drive the vehicle with this code as it may affect the functionality of the seat adjustment, posing a safety risk.
6. How much does it typically cost to repair OBDII code B3920 Seat Motors Group 1 Common Circuit?
- The cost of repair can vary depending on the specific cause of the code, but it may range from a few hundred dollars for minor repairs to over a thousand dollars for more extensive issues.
7. Is OBDII code B3920 Seat Motors Group 1 Common Circuit a common issue in vehicles?
- This code can be relatively common in vehicles with power-operated seats, especially in older vehicles or those with high mileage.
8. Can resetting the OBDII system clear the B3920 code related to Seat Motors Group 1 Common Circuit?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.
9. Are there any preventive maintenance steps to avoid OBDII code B3920 Seat Motors Group 1 Common Circuit?
- Regularly inspecting and maintaining the seat motors, wiring, and connectors can help prevent issues that may trigger this OBDII code.
10. Can a DIY enthusiast fix OBDII code B3920 Seat Motors Group 1 Common Circuit at home?
- Depending on the specific cause of the code, some DIY enthusiasts with automotive repair experience may be able to diagnose and repair the issue at home.
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