B3950 2016 Chevrolet Silverado Code - Left Rear Turn Signal Circuit
Quick Answer
The B3950 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado relates to the left rear turn signal circuit. Common causes include Faulty left rear turn signal bulb, Damaged wiring harness leading to the left rear turn signal, Defective turn signal switch. 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
- B3950 2016 Chevrolet Silverado indicates Left Rear Turn Signal Circuit.
- Common causes
- Common causes include Faulty left rear turn signal bulb, Damaged wiring harness leading to the left rear turn signal, Defective turn signal switch.
- 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 B3950 2016 Chevrolet Silverado Description
The B3950 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado relates to the left rear turn signal circuit. This code indicates a malfunction in the electrical circuit responsible for controlling the left rear turn signal on the vehicle. The turn signal system is crucial for indicating the driver's intention to change lanes or make a turn, ensuring the safety of the driver and other road users. When this code is triggered, it can lead to the left rear turn signal not functioning correctly, which can pose a safety hazard on the road.
Common Causes of B3950 2016 Chevrolet Silverado
- Faulty left rear turn signal bulb
- Damaged wiring harness leading to the left rear turn signal
- Defective turn signal switch
- BCM malfunction affecting the left rear turn signal circuit
Symptoms of B3950 2016 Chevrolet Silverado
- Left rear turn signal not working
- Rapid flashing of the left rear turn signal
- Turn signal warning light illuminated on the instrument cluster
- Turn signal indicator on the dashboard flashing rapidly
How to Fix B3950 2016 Chevrolet Silverado
- Begin by visually inspecting the left rear turn signal bulb for any signs of damage or burnout. Replace the bulb if necessary.
- Check the wiring harness connected to the left rear turn signal for any frayed wires or loose connections. Repair or replace the wiring as needed.
- Test the turn signal switch for proper functionality. If the switch is faulty, replace it with a new one.
- Use a diagnostic tool to scan the BCM for any fault codes related to the left rear turn signal circuit. Reset the BCM and clear the DTC if necessary.
Cost to Fix B3950 2016 Chevrolet Silverado
The typical repair costs for addressing the B3950 DTC on a 2016 Chevrolet Silverado can range from $100 to $300, depending on the specific cause of the issue and the cost of replacement parts. This estimate includes the cost of a new turn signal bulb, wiring harness, turn signal switch, or BCM if needed, as well as labor charges. It's important to note that the actual repair costs may vary based on the location of the repair shop, the make and model of the vehicle, and the hourly labor rates. It is advisable to obtain quotes from multiple auto repair shops to ensure a competitive price for the repair.
Tech Notes for B3950 2016 Chevrolet Silverado
B3950:02 Left Rear Turn Signal Circuit Short to Ground
B3950:04 Left Rear Turn Signal Circuit Open
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Frequently Asked Questions about B3950 2016 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code B3950 in a 2016 Chevrolet Silverado indicating a Left Rear Turn Signal Circuit issue?
The common symptoms include the left rear turn signal not functioning correctly or not working at all, fast blinking of the turn signal, or a warning light on the dashboard.
2. What are the possible causes of OBDII code B3950 in a 2016 Chevrolet Silverado?
Possible causes of this code may include a faulty turn signal bulb, a damaged wiring harness in the left rear turn signal circuit, a malfunctioning turn signal switch, or a defective body control module.
3. How can I diagnose the Left Rear Turn Signal Circuit problem in my 2016 Chevrolet Silverado?
You can start by visually inspecting the left rear turn signal bulb and the wiring for any visible damage. Use a multimeter to check for continuity in the circuit and test the turn signal switch for proper functionality.
4. Can a DIY enthusiast repair the Left Rear Turn Signal Circuit issue associated with OBDII code B3950 in a 2016 Chevrolet Silverado?
Yes, depending on the cause of the problem. Replacing a faulty bulb or repairing a damaged wire may be within reach for a DIYer. However, more complex issues like a malfunctioning body control module may require professional assistance.
5. Is it safe to continue driving my 2016 Chevrolet Silverado with OBDII code B3950 related to the Left Rear Turn Signal Circuit?
It is not recommended to drive the vehicle with a malfunctioning turn signal, as it can pose a safety hazard by affecting your visibility to other drivers on the road. Prompt repairs are advised.
6. How much does it typically cost to repair the Left Rear Turn Signal Circuit problem triggering OBDII code B3950 in a 2016 Chevrolet Silverado?
The cost of repair can vary depending on the root cause of the issue. Simple fixes like bulb replacement may be inexpensive, while more complex repairs involving wiring or control modules can be more costly.
7. Will resetting the OBDII code B3950 in my 2016 Chevrolet Silverado make the Left Rear Turn Signal Circuit issue go away?
Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the Left Rear Turn Signal Circuit issue. Proper diagnosis and repair are necessary for a lasting solution.
8. Are there any recalls or technical service bulletins related to OBDII code B3950 in a 2016 Chevrolet Silverado?
It's advisable to check with a Chevrolet dealership or visit the manufacturer's website to see if there are any recalls or technical service bulletins related to the Left Rear Turn Signal Circuit problem in your specific model year.
9. Can extreme weather conditions impact the Left Rear Turn Signal Circuit in my 2016 Chevrolet Silverado and trigger OBDII code B3950?
Extreme weather conditions, especially moisture and corrosion, can potentially affect the electrical components of the turn signal circuit, leading to malfunctions. Ensure all connections are secure and protected from the elements.
10. How long does it usually take to repair the Left Rear Turn Signal Circuit issue associated with OBDII code B3950 in a 2016 Chevrolet Silverado?
The repair time can vary depending on the specific cause of the problem. Simple fixes like bulb replacement can be done quickly, while more complex issues may require more time for diagnosis and repair.
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