AutoCodes – Chevrolet – B3951 2014 Chevrolet Silverado

B3951 2014 Chevrolet Silverado Code - Right Rear Turn Signal Circuit

Quick Answer

Ground is applied at all times to the turn signal/multifunction switch. Common causes include Faulty Right Rear Turn Signal Lamp, Right Rear Turn Signal Lamp harness is open or shorted, Right Rear Turn Signal Lamp 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: B3951 2014 Chevrolet Silverado indicates Right Rear Turn Signal Circuit.
Common causes: Common causes include Faulty Right Rear Turn Signal Lamp, Right Rear Turn Signal Lamp harness is open or shorted, Right Rear Turn Signal Lamp 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.

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Code Popularity 295

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Basic DIY (1 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 17, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B3951 2014 Chevrolet Silverado Description

Ground is applied at all times to the turn signal/multifunction switch. The turn signal lamps may only be activated with the ignition switch in the ON or START positions. When the turn signal/multifunction switch is placed in either the TURN RIGHT or TURN LEFT position, ground is applied to the Body Control Module (BCM) through either the right turn or left turn signal switch signal circuit. The BCM responds to the turn signal switch input by applying a pulsating voltage to the front and rear turn signal lamps through there respective control circuits. When a turn signal request is received by the BCM, a serial data message is sent to the instrument cluster requesting the respective turn signal indicator be pulsed ON and OFF. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a short to voltage, short to ground, or an open/high resistance in the right rear turn signal control circuit.

OBDII Code B3951 2014 Chevrolet Silverado - Right Rear Turn Signal Circuit - AutoCodes.com — B3951 2014 Chevrolet Silverado Code - Right Rear Turn Signal Circuit

What does this mean?

What are the Possible Causes of the DTC B3951 2014 Chevrolet Silverado?

Faulty Right Rear Turn Signal Lamp
Right Rear Turn Signal Lamp harness is open or shorted
Right Rear Turn Signal Lamp circuit poor electrical connection

How to Fix the DTC B3951 2014 Chevrolet Silverado?

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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3951 2014 Chevrolet Silverado 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.

Need more information about the B3951 2014 Chevrolet Silverado code?

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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 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B3951 in a 2014 Chevrolet Silverado related to the right rear turn signal circuit?

The common symptoms include the right rear turn signal not functioning properly or not illuminating at all when activated.

2. What are the possible causes of OBDII code B3951 in a 2014 Chevrolet Silverado indicating an issue with the right rear turn signal circuit?

Possible causes include a faulty turn signal bulb, a damaged wiring harness, a malfunctioning turn signal switch, or a problem with the body control module.

3. How can I diagnose the issue causing OBDII code B3951 in my 2014 Chevrolet Silverado affecting the right rear turn signal circuit?

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

4. Can I repair OBDII code B3951 in my 2014 Chevrolet Silverado related to the right rear turn signal circuit myself?

Depending on the exact cause, you may be able to perform the repair yourself. Replacing a faulty bulb or repairing a damaged wire are relatively straightforward tasks, while diagnosing and fixing issues with the turn signal switch or body control module may require professional assistance.

5. Are there any tips for preventing OBDII code B3951 in a 2014 Chevrolet Silverado from recurring in the future?

Ensuring regular maintenance of your vehicle's lighting system, promptly replacing any malfunctioning bulbs, and avoiding overloading the electrical circuits can help prevent the recurrence of this OBDII code.

6. How urgent is it to address OBDII code B3951 in a 2014 Chevrolet Silverado related to the right rear turn signal circuit?

While driving with a malfunctioning turn signal is not safe and can lead to traffic violations, addressing this OBDII code promptly is recommended to ensure proper signaling and overall vehicle safety.

7. Is it possible for other vehicle systems to be affected by OBDII code B3951 in a 2014 Chevrolet Silverado indicating a problem with the right rear turn signal circuit?

While the code specifically relates to the right rear turn signal circuit, electrical issues in one part of the vehicle can sometimes impact other systems, so it's essential to address the problem promptly to prevent further complications.

8. Can extreme weather conditions or environmental factors trigger OBDII code B3951 in a 2014 Chevrolet Silverado involving the right rear turn signal circuit?

While uncommon, extreme weather conditions or exposure to moisture can potentially cause electrical issues leading to this OBDII code. Keeping the vehicle protected and dry can help prevent such occurrences.

9. Are there any recalls or technical service bulletins related to OBDII code B3951 in a 2014 Chevrolet Silverado associated with the right rear turn signal circuit?

It's advisable to check with a Chevrolet dealership or online resources for any recalls or technical service bulletins that may address this specific OBDII code and related issues in the 2014 Silverado.

10. How do I reset OBDII code B3951 in my 2014 Chevrolet Silverado after repairing the issue with the right rear turn signal circuit?

After addressing the root cause of the problem, you can reset the OBDII code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the error code from the system.