B3951 2017 GMC Sierra Code - Right Rear Turn Signal Circuit
Quick Answer
The B3951 diagnostic trouble code (DTC) for the 2017 GMC Sierra specifically pertains to the right rear turn signal circuit. Common causes include Faulty turn signal bulb in the right rear, Corrosion or damage to the wiring harness connected to the right rear turn signal, Defective turn signal switch or relay. 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 2017 GMC Sierra indicates Right Rear Turn Signal Circuit.
- Common causes
- Common causes include Faulty turn signal bulb in the right rear, Corrosion or damage to the wiring harness connected to the right rear turn signal, Defective turn signal switch or relay.
- 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 2017 GMC Sierra Description
The B3951 diagnostic trouble code (DTC) for the 2017 GMC Sierra specifically pertains to the right rear turn signal circuit. This code indicates that there is a malfunction or issue with the electrical circuit responsible for the right rear turn signal on the vehicle. The turn signal circuit is a crucial component of the vehicle's lighting system, providing important safety features for indicating turns and lane changes to other drivers on the road.
Common Causes of B3951 2017 GMC Sierra
- Faulty turn signal bulb in the right rear
- Corrosion or damage to the wiring harness connected to the right rear turn signal
- Defective turn signal switch or relay
- Faulty lighting control module
- Electrical issues such as a short circuit in the right rear turn signal circuit
Symptoms of B3951 2017 GMC Sierra
- Right rear turn signal not working
- Rapid blinking of the turn signal indicator on the dashboard
- Dim or flickering right rear turn signal
- Error message on the instrument cluster related to turn signal issues
- Vehicle failing turn signal inspection during state inspections
How to Fix B3951 2017 GMC Sierra
- Begin by visually inspecting the right rear turn signal bulb for any signs of damage or malfunction. Replace the bulb if necessary.
- Check the wiring harness connected to the right rear turn signal for any corrosion, damage, or loose connections. Repair or replace the wiring as needed.
- Test the turn signal switch and relay to ensure they are functioning correctly. Replace any faulty components.
- If the issue persists, inspect the lighting control module for any faults or malfunctions. Replace the module if necessary.
- Clear the DTC from the vehicle's computer system and test the right rear turn signal to ensure proper functionality.
Cost to Fix B3951 2017 GMC Sierra
The cost of repairing a right rear turn signal circuit issue can vary depending on the specific cause of the problem and the extent of the repairs needed. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total cost of addressing a B3951 code for the right rear turn signal circuit on a 2017 GMC Sierra can typically range from $150 to $500. It is essential to consult with a qualified mechanic or auto repair shop to obtain a more accurate estimate based on the specific circumstances of the vehicle and the repair needed. Keep in mind that labor rates and diagnosis times can vary based on factors such as location, vehicle make and model, and the complexity of the repair.
Tech Notes for B3951 2017 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 2017 GMC Sierra Code
1. What are the common symptoms of OBDII code B3951 in a 2017 GMC Sierra related to the right rear turn signal circuit?
- The common symptoms include the right rear turn signal not working, rapid flashing of the turn signal, or a warning light on the dashboard.
2. What are the possible causes of OBDII code B3951 in a 2017 GMC Sierra for the right rear turn signal circuit?
- Possible causes may include a faulty 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 in a 2017 GMC Sierra for the right rear turn signal circuit?
- You can start by visually inspecting the right rear turn signal bulb, checking the wiring for any damage, testing the turn signal switch, and using a diagnostic scanner to read the trouble codes.
4. Can I repair OBDII code B3951 in a 2017 GMC Sierra for the right rear turn signal circuit myself?
- Depending on your skill level and access to tools, you may be able to replace a faulty bulb or repair a damaged wire yourself. For more complex issues, it's recommended to consult a professional mechanic.
5. Is it safe to continue driving with OBDII code B3951 in a 2017 GMC Sierra affecting the right rear turn signal circuit?
- It's not recommended to drive with a malfunctioning turn signal as it can pose a safety hazard to you and other drivers on the road. It's best to address the issue promptly.
6. How much does it typically cost to repair OBDII code B3951 in a 2017 GMC Sierra related to the right rear turn signal circuit?
- The cost of repair can vary depending on the root cause of the issue. Simple fixes like replacing a bulb may be inexpensive, while more complex repairs involving wiring or components can be more costly.
7. Can weather conditions affect OBDII code B3951 in a 2017 GMC Sierra for the right rear turn signal circuit?
- Extreme weather conditions, such as heavy rain or snow, can potentially damage the wiring or connections related to the turn signal circuit, leading to the triggering of this OBDII code.
8. Will resetting the OBDII system clear OBDII code B3951 in a 2017 GMC Sierra for the right rear turn signal circuit?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear. It's important to diagnose and fix the root cause.
9. Can a dead battery trigger OBDII code B3951 in a 2017 GMC Sierra affecting the right rear turn signal circuit?
- A dead or low battery can sometimes cause electrical issues that may trigger fault codes like B3951. Ensure your battery is in good condition and properly charged.
10. How long does it typically take to repair OBDII code B3951 in a 2017 GMC Sierra for the right rear turn signal circuit?
- The repair time can vary depending on the exact cause of the issue and the complexity of the repair. Simple fixes may take less than an hour, while more involved repairs could take several hours or more.
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