B3950 Pontiac Code - Left Rear Turn Signal Circuit
Quick Answer
Ground is applied at all times to the turn signal/multifunction switch. Common causes include Faulty Left Rear Turn Signal Lamp, Left Rear Turn Signal Lamp harness is open or shorted, Left 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
- B3950 Pontiac indicates Left Rear Turn Signal Circuit.
- Common causes
- Common causes include Faulty Left Rear Turn Signal Lamp, Left Rear Turn Signal Lamp harness is open or shorted, Left 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.
Code B3950 Pontiac Description
What are the Possible Causes of the DTC B3950 Pontiac?
- Faulty Left Rear Turn Signal Lamp
- Left Rear Turn Signal Lamp harness is open or shorted
- Left Rear Turn Signal Lamp circuit poor electrical connection
How to Fix the DTC B3950 Pontiac?
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.
Code Tech Notes
B3950:02 Left Rear Turn Signal Circuit Short to Ground
B3950:04 Left Rear Turn Signal Circuit Open
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B3950 Pontiac 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 B3950 Pontiac Code
1. What are the common symptoms of OBDII code B3950 in a Pontiac related to the left rear turn signal circuit?
The common symptoms include the left rear turn signal not working, fast blinking of the turn signal, or a warning light on the dashboard indicating a turn signal issue.
2. What are some possible causes of OBDII code B3950 in a Pontiac indicating a problem with the left rear turn signal circuit?
Possible causes include a burnt out turn signal bulb, a faulty turn signal relay, a broken wire in the circuit, or a malfunctioning turn signal switch.
3. How can I diagnose the OBDII code B3950 in my Pontiac's left rear turn signal circuit?
You can start by visually inspecting the left rear turn signal bulb for any signs of damage. Check the fuse related to the turn signal circuit and use a multimeter to test the continuity of the wires and the functionality of the turn signal relay.
4. Can a DIY enthusiast repair the OBDII code B3950 in a Pontiac related to the left rear turn signal circuit?
Yes, depending on the specific issue, DIY repairs like replacing a burnt out bulb, fixing a broken wire, or swapping out a faulty relay can often resolve the problem.
5. Is it necessary to address OBDII code B3950 in a Pontiac indicating a left rear turn signal circuit issue promptly?
Yes, it is important to address this issue promptly as a non-functioning turn signal can compromise road safety and may lead to a potential traffic violation.
6. Are there any specific Pontiac models known to be more prone to experiencing OBDII code B3950 related to the left rear turn signal circuit?
While the issue can occur in various Pontiac models, some older models with aging electrical systems may be more susceptible to experiencing problems with the turn signal circuit.
7. Can extreme weather conditions or environmental factors contribute to triggering OBDII code B3950 in a Pontiac's left rear turn signal circuit?
Yes, exposure to moisture, corrosion, or extreme temperatures can lead to electrical issues in the turn signal circuit, potentially triggering the OBDII code B3950.
8. How can I prevent future occurrences of OBDII code B3950 in my Pontiac related to the left rear turn signal circuit?
Regularly inspect and maintain your vehicle's lighting system, promptly replace any burnt out bulbs, address any wiring issues, and protect electrical components from moisture to prevent future occurrences of this code.
9. Are there any safety precautions to keep in mind when working on the left rear turn signal circuit to resolve OBDII code B3950 in a Pontiac?
Ensure the vehicle is turned off, disconnect the battery to prevent electrical accidents, and handle electrical components with care to avoid any injuries or further damage to the system.
10. Should I seek professional help if I am unable to diagnose or repair OBDII code B3950 in my Pontiac's left rear turn signal circuit?
If you are unable to diagnose or repair the issue yourself, it is recommended to seek assistance from a qualified mechanic or automotive technician who can accurately diagnose and repair the problem to ensure the turn signal circuit functions properly.
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