B3951 2016 GMC Sierra Code - Right Rear Turn Signal Circuit
Quick Answer
The B3951 diagnostic trouble code (DTC) for a 2016 GMC Sierra specifically relates to the right rear turn signal circuit. Common causes include Faulty wiring or connection in the right rear turn signal circuit, Defective right rear turn signal bulb, Damaged right rear 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 2016 GMC Sierra indicates Right Rear Turn Signal Circuit.
- Common causes
- Common causes include Faulty wiring or connection in the right rear turn signal circuit, Defective right rear turn signal bulb, Damaged right rear 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.
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Code B3951 2016 GMC Sierra Description
The B3951 diagnostic trouble code (DTC) for a 2016 GMC Sierra specifically relates to the right rear turn signal circuit. This code is triggered when the vehicle's onboard diagnostic system detects a malfunction or issue with the circuit responsible for controlling the right rear turn signal. The turn signal circuit plays a crucial role in signaling the driver's intention to turn or change lanes, ensuring the safety of the vehicle and surrounding traffic.
Common Causes of B3951 2016 GMC Sierra
- Faulty wiring or connection in the right rear turn signal circuit
- Defective right rear turn signal bulb
- Damaged right rear turn signal socket
- Malfunctioning turn signal relay
- Corrosion or moisture in the turn signal circuit
Symptoms of B3951 2016 GMC Sierra
- Right rear turn signal not working
- Rapid blinking of the right rear turn signal
- Dim or flickering right rear turn signal
- Dashboard indicator for right turn signal flashing rapidly
- Audible clicking sound from the turn signal relay
How to Fix B3951 2016 GMC Sierra
- Inspect the right rear turn signal bulb for damage or burnout and replace if necessary.
- Check the wiring and connections in the right rear turn signal circuit for any breaks, frays, or corrosion, repairing or replacing as needed.
- Test the right rear turn signal socket for proper functionality and replace if faulty.
- Verify the operation of the turn signal relay and replace if it is not functioning correctly.
- Clear the DTC from the vehicle's onboard diagnostic system and test the right rear turn signal to ensure proper operation.
Cost to Fix B3951 2016 GMC Sierra
The typical repair costs for addressing the B3951 code related to the right rear turn signal circuit on a 2016 GMC Sierra can range from $50 to $200, depending on the specific issue and required parts. This estimate includes the cost of materials such as replacement bulbs, sockets, wiring, and relays, as well as labor charges. It is important to note that actual repair costs may vary based on factors such as location, vehicle make and model, and the rates charged by auto repair shops. It is advisable to inquire about specific diagnosis time and labor rates to obtain a more accurate estimate for this repair.
Tech Notes for B3951 2016 GMC Sierra
B3951:02 Right Rear Turn Signal Circuit Short to Ground
B3951:04 Right Rear Turn Signal Circuit Open
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Frequently Asked Questions about B3951 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code B3951 on a 2016 GMC Sierra related to the right rear turn signal circuit?
The common symptoms include the right rear turn signal not working, fast blinking of the turn signal indicator on the dashboard, or a warning message on the instrument panel.
2. What are the possible causes of OBDII code B3951 on a 2016 GMC Sierra for the right rear turn signal circuit?
Possible causes include a faulty right rear turn signal bulb, a damaged wiring harness, a malfunctioning turn signal switch, or a defective turn signal relay.
3. How can I diagnose OBDII code B3951 on a 2016 GMC Sierra for the right rear turn signal circuit?
To diagnose the issue, you can start by visually inspecting the right rear turn signal bulb, checking the wiring harness for any damage, testing the turn signal switch functionality, and verifying the operation of the turn signal relay.
4. Can a DIY enthusiast repair OBDII code B3951 on a 2016 GMC Sierra for the right rear turn signal circuit?
Yes, depending on the specific cause, some DIY repairs may be possible, such as replacing the right rear turn signal bulb or repairing a damaged wiring harness. However, more complex issues may require professional diagnosis and repair.
5. Is it safe to continue driving a 2016 GMC Sierra with OBDII code B3951 related to the right 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 the visibility of your intentions to other drivers. Promptly addressing the issue is advised.
6. How can I reset OBDII code B3951 on a 2016 GMC Sierra for the right rear turn signal circuit after making repairs?
After repairing the issue causing the OBDII code B3951, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the error code.
7. What are some tips for preventing OBDII code B3951 on a 2016 GMC Sierra for the right rear turn signal circuit?
Regularly inspecting the vehicle's turn signal bulbs, ensuring proper wiring connections, and addressing any turn signal issues promptly can help prevent OBDII code B3951 from occurring.
8. Can extreme weather conditions affect the right rear turn signal circuit on a 2016 GMC Sierra and trigger OBDII code B3951?
Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially damage the turn signal components or wiring, leading to issues with the right rear turn signal circuit and triggering OBDII code B3951.
9. Are there any recalls or technical service bulletins related to OBDII code B3951 for the right rear turn signal circuit on a 2016 GMC Sierra?
It is recommended to check with the manufacturer or authorized GMC service center for any recalls or technical service bulletins related to OBDII code B3951 on a 2016 GMC Sierra to address potential known issues.
10. How much does it typically cost to repair OBDII code B3951 on a 2016 GMC Sierra for the right rear turn signal circuit at a professional auto repair shop?
The cost of repairing OBDII code B3951 can vary depending on the specific cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to obtain estimates from different repair shops for comparison.
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