B3951 Pontiac Code - Right Rear Turn Signal Circuit
Quick Answer
The B3951 code for Pontiac specifically refers to a fault in the right rear turn signal circuit of the vehicle. Common causes include Faulty turn signal bulb, Corroded or damaged wiring in the right rear turn signal circuit, Blown fuse related to the turn signal circuit. 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 Pontiac indicates Right Rear Turn Signal Circuit.
- Common causes
- Common causes include Faulty turn signal bulb, Corroded or damaged wiring in the right rear turn signal circuit, Blown fuse related to the turn signal circuit.
- 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 Pontiac Description
The B3951 code for Pontiac specifically refers to a fault in the right rear turn signal circuit of the vehicle. This code indicates that there is a problem with the electrical system that controls the right rear turn signal, which could potentially affect the vehicle's safety and visibility on the road. When this code is triggered, it means that the Powertrain Control Module (PCM) has detected an issue with the circuit, such as a short circuit, open circuit, or high resistance. This can lead to the turn signal not functioning properly or not illuminating at all, posing a hazard to the driver and other road users.
Common Causes of B3951 Pontiac
- Faulty turn signal bulb
- Corroded or damaged wiring in the right rear turn signal circuit
- Blown fuse related to the turn signal circuit
- Defective turn signal switch
- Issues with the Powertrain Control Module (PCM)
Symptoms of B3951 Pontiac
- Right rear turn signal not working
- Fast blinking of the right turn signal
- Dashboard indicator for right turn signal flashing rapidly
- Dim or flickering right rear turn signal
How to Fix B3951 Pontiac
- Inspect the right rear turn signal bulb and replace if necessary.
- Check the wiring in the right rear turn signal circuit for any damage or corrosion, and repair or replace as needed.
- Test and replace any blown fuses related to the turn signal circuit.
- Check and potentially replace the turn signal switch if found to be faulty.
- If all other components are in working order, consider checking the PCM for any issues.
Cost to Fix B3951 Pontiac
The cost of repairing the right rear turn signal circuit can vary depending on the specific cause of the issue. Replacing a turn signal bulb can cost between $5 to $30, while repairing or replacing damaged wiring can range from $50 to $200. If the issue is related to a faulty turn signal switch, the cost can be around $150 to $300. Diagnostic fees can add an additional $50 to $100 to the overall cost. Overall, the total repair cost for this issue could range from $100 to $500, depending on the extent of the problem and the parts needed. It's recommended to consult with a professional mechanic to get an accurate estimate based on your vehicle's make and model.
Tech Notes for B3951 Pontiac
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 Pontiac Code
1. What does OBDII code B3951 mean on a Pontiac?
Code B3951 indicates a problem with the right rear turn signal circuit, such as an open or short, preventing proper operation of the turn signal.
2. What are the common symptoms of code B3951 in a Pontiac?
Symptoms may include the right rear turn signal not functioning, a fast-flashing turn signal indicator on the dashboard, or warning lights like the check engine or service vehicle soon light.
3. What causes code B3951 in a Pontiac?
Common causes include a burned-out turn signal bulb, damaged wiring or connectors in the circuit, a faulty turn signal socket, or a malfunctioning body control module (BCM).
4. How do I fix OBDII code B3951 in my Pontiac?
Begin by inspecting and replacing the right rear turn signal bulb if needed. Check for damaged wiring, loose connections, or corrosion in the socket and repair as necessary. If the issue persists, the BCM may need to be tested or replaced.
5. Can I drive my Pontiac with code B3951 active?
You can drive with the code active, but it’s unsafe because the right rear turn signal won’t function properly, which can lead to accidents or traffic violations.
6. How do I diagnose code B3951 on a Pontiac?
Start by visually inspecting the bulb, socket, and wiring for damage or corrosion. Use a multimeter to test for continuity in the circuit and check for proper voltage at the socket. If no issues are found, scan the BCM for additional faults.
7. Will a blown fuse cause code B3951 in a Pontiac?
Yes, a blown fuse related to the turn signal circuit can cause this code. Check your vehicle's fuse box and replace any blown fuses.
8. Does a faulty BCM always cause code B3951?
Not always. While a faulty BCM can trigger this code, it’s more commonly caused by simpler issues like a bad bulb, damaged wiring, or corroded connectors.
9. How much does it cost to repair code B3951 in a Pontiac?
Repair costs vary. Replacing a bulb is inexpensive, costing around $10-$20, while repairing wiring or replacing the BCM can cost $100-$500 or more, depending on labor and parts.
10. Can I reset code B3951 without fixing the problem?
You can clear the code using an OBDII scanner, but it will likely return if the underlying issue isn’t resolved.
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