Engine-CodesChevrolet – B3951 Chevrolet

B3951 Chevrolet Code - Right Rear Turn Signal Circuit

Quick Answer

The B3951 Chevrolet diagnostic trouble code (DTC) specifically refers to a fault in the right rear turn signal circuit of the vehicle. Common causes include Faulty wiring or connections in the right rear turn signal circuit, Defective right rear turn signal bulb, Damaged turn signal socket. 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
B3951 Chevrolet indicates Right Rear Turn Signal Circuit.
Common causes
Common causes include Faulty wiring or connections in the right rear turn signal circuit, Defective right rear turn signal bulb, Damaged turn signal socket.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B3951 Chevrolet Description

The B3951 Chevrolet diagnostic trouble code (DTC) specifically refers to a fault in the right rear turn signal circuit of the vehicle. This code indicates that there is an issue with the electrical system responsible for controlling the right rear turn signal. The turn signal circuit is an essential component of the vehicle's lighting system, which ensures proper visibility and communication of the driver's intentions to other road users.

OBDII Code B3951 Chevrolet - Right Rear Turn Signal Circuit
B3951 Chevrolet Code - Right Rear Turn Signal Circuit

Common Causes of B3951 Chevrolet

  1. Faulty wiring or connections in the right rear turn signal circuit
  2. Defective right rear turn signal bulb
  3. Damaged turn signal socket
  4. Malfunctioning turn signal switch
  5. Corrosion or moisture in the turn signal components

Symptoms of B3951 Chevrolet

  1. Right rear turn signal not illuminating or flashing
  2. Rapid blinking of the turn signal indicator on the dashboard
  3. Turn signal on the right side of the vehicle not functioning
  4. Dim or flickering right rear turn signal

How to Fix B3951 Chevrolet

  1. Begin by inspecting the right rear turn signal bulb to ensure it is not burnt out or damaged. Replace the bulb if necessary.
  2. Check the wiring and connections in the right rear turn signal circuit for any signs of damage or corrosion. Repair or replace as needed.
  3. Test the turn signal socket for proper functionality and replace if faulty.
  4. If the issue persists, diagnose the turn signal switch for any defects and replace if necessary.
  5. Clear the diagnostic trouble code from the vehicle's computer system to reset the indicator light.

Cost to Fix B3951 Chevrolet

The typical repair costs for addressing the B3951 Chevrolet code can range from $50 to $200, depending on the specific cause of the issue and the labor rates at the auto repair shop. It is important to note that additional costs may be incurred if any parts need to be replaced. As mentioned earlier, labor rates at auto repair shops can vary, so it is advisable to check local rates for a more accurate estimate.

Tech Notes for B3951 Chevrolet

B3951:01 Right Rear Turn Signal Circuit Short to Battery

B3951:02 Right Rear Turn Signal Circuit Short to Ground

B3951:04 Right Rear Turn Signal Circuit Open

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Information for Specific Chevrolet Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B3951 Chevrolet Code

1. What are the common symptoms of OBDII code B3951 for the right rear turn signal circuit in a Chevrolet?

- Common symptoms include the right rear turn signal not working, fast blinking of the turn signal, or a warning light on the dashboard.

2. What are the possible causes of OBDII code B3951 in a Chevrolet related to the right rear turn signal circuit?

- Possible causes can include a faulty right rear turn signal bulb, a damaged wiring harness, a defective turn signal switch, or a malfunctioning body control module.

3. How can I diagnose OBDII code B3951 for the right rear turn signal circuit in my Chevrolet?

- You can start by visually inspecting the right rear turn signal bulb and wiring for any damage. Using a multimeter to test the continuity of the circuit can help pinpoint the issue.

4. Is it possible to repair OBDII code B3951 for the right rear turn signal circuit in a Chevrolet without professional help?

- Yes, in some cases, replacing a faulty bulb or repairing a damaged wiring connection can resolve the issue. However, more complex problems may require professional diagnosis and repair.

5. Can a loose connection cause OBDII code B3951 for the right rear turn signal circuit in a Chevrolet?

- Yes, a loose or corroded connection in the right rear turn signal circuit can trigger this code. Ensure all connections are secure and free of corrosion.

6. Is it safe to continue driving my Chevrolet with OBDII code B3951 related to the right rear turn signal circuit?

- It is not recommended to drive with a malfunctioning turn signal, as it can pose a safety hazard to you and other drivers. Promptly address the issue to ensure proper signaling.

7. Will resetting the OBDII code B3951 in my Chevrolet make the issue with the right rear turn signal circuit go away?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing the right rear turn signal malfunction.

8. Can extreme weather conditions affect the right rear turn signal circuit and trigger OBDII code B3951 in a Chevrolet?

- Extreme weather conditions can potentially damage the wiring or bulb in the right rear turn signal circuit, leading to the code B3951. Take precautions to protect the circuit.

9. Are there any specific Chevrolet models known to have a higher likelihood of encountering OBDII code B3951 for the right rear turn signal circuit?

- While the code can occur in various Chevrolet models, some older vehicles or those exposed to harsh driving conditions may be more prone to experiencing issues with the turn signal circuit.

10. How much can I expect to pay for professional repair of OBDII code B3951 in a Chevrolet's right rear turn signal circuit?

- The cost of repair can vary depending on the specific issue and labor rates. It's recommended to obtain quotes from reputable auto repair shops for an accurate estimate.

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