B3949 2014 Chevrolet Silverado Code - Right Front Turn Signal Circuit
Quick Answer
Ground is applied at all times to the turn signal/multifunction switch. Common causes include Faulty Right Front Turn Signal Lamp, Right Front Turn Signal Lamp harness is open or shorted, Right Front 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
- B3949 2014 Chevrolet Silverado indicates Right Front Turn Signal Circuit.
- Common causes
- Common causes include Faulty Right Front Turn Signal Lamp, Right Front Turn Signal Lamp harness is open or shorted, Right Front 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.
Code B3949 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC B3949 2014 Chevrolet Silverado?
- Faulty Right Front Turn Signal Lamp
- Right Front Turn Signal Lamp harness is open or shorted
- Right Front Turn Signal Lamp circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B3949 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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B3949 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.
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Frequently Asked Questions about B3949 2014 Chevrolet Silverado Code
1. What does the OBDII code B3949 mean on a 2014 Chevrolet Silverado?
It indicates an issue with the Right Front Turn Signal Circuit, such as an open or shorted wire or a failure in the turn signal bulb or related components.
2. What are the symptoms of code B3949 in a 2014 Chevrolet Silverado?
Common symptoms include the right front turn signal not working, a fast or irregular turn signal flash rate, or the turn signal indicator staying on.
3. What causes the B3949 code to appear on my 2014 Silverado?
Causes may include a faulty turn signal bulb, damaged wiring or connectors in the circuit, a malfunctioning Body Control Module (BCM), or corrosion in the bulb socket.
4. How do I diagnose the B3949 code on a 2014 Silverado?
Start by inspecting the right front turn signal bulb, socket, and wiring for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.
5. Can I drive my 2014 Silverado with the B3949 code active?
While the vehicle can still be driven, it’s not recommended as the non-functioning turn signal poses a safety hazard and could result in a traffic violation.
6. How do I fix the B3949 code on a 2014 Chevrolet Silverado?
Repairs may include replacing the right front turn signal bulb, repairing damaged wiring or connectors, cleaning corrosion from the socket, or reprogramming or replacing the BCM if necessary.
7. How much does it cost to repair the B3949 code on a 2014 Silverado?
The cost depends on the issue. Replacing a bulb may cost $10–$20, while wiring repairs or BCM replacement could cost $100–$600 or more.
8. Can a bad Body Control Module (BCM) cause the B3949 code?
Yes, a malfunctioning BCM can cause issues with the turn signal circuit, including triggering the B3949 code.
9. How do I prevent the B3949 code from recurring on my Silverado?
Regularly inspect the turn signal bulbs, sockets, and wiring for damage or corrosion and address any issues promptly.
10. Do I need a professional to fix the B3949 code on my Silverado?
Simple fixes like bulb replacement can often be done at home, but diagnosing wiring issues or BCM problems may require professional assistance.
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