B3951 Saturn Code - Right Rear Turn Signal Circuit
Quick Answer
The B3951 code specifically relates to the right rear turn signal circuit on a Saturn vehicle. Common causes include Burnt out turn signal bulb, Corroded or damaged wiring in the right rear turn signal circuit, Faulty turn signal switch. 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 Saturn indicates Right Rear Turn Signal Circuit.
- Common causes
- Common causes include Burnt out turn signal bulb, Corroded or damaged wiring in the right rear turn signal circuit, Faulty turn signal switch.
- 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 Saturn Description
The B3951 code specifically relates to the right rear turn signal circuit on a Saturn vehicle. This code indicates that there is a malfunction in the electrical circuit that controls the right rear turn signal. When this code is triggered, it means that the vehicle's onboard diagnostic system has detected an issue with the turn signal on the right rear side of the vehicle.
Common Causes of B3951 Saturn
- Burnt out turn signal bulb
- Corroded or damaged wiring in the right rear turn signal circuit
- Faulty turn signal switch
- Malfunctioning body control module
Symptoms of B3951 Saturn
- Right rear turn signal not working
- Rapid blinking of the right turn signal
- Dashboard indicator for right turn signal flashing rapidly
- Turn signal on the right side staying on continuously
How to Fix B3951 Saturn
- Inspect the right rear turn signal bulb and replace if burnt out.
- Check the wiring harness for any damage or corrosion and repair or replace as needed.
- Test the turn signal switch for proper function and replace if faulty.
- Scan the body control module for any error codes related to the right rear turn signal circuit and address any issues found.
- Clear the diagnostic trouble codes from the vehicle's computer and test the right rear turn signal to ensure proper operation.
Cost to Fix B3951 Saturn
The cost of repairing the right rear turn signal circuit can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of replacing a turn signal bulb is relatively low, typically ranging from $5 to $20 for the bulb itself. However, if the issue is related to the wiring harness, turn signal switch, or body control module, the cost can be significantly higher, ranging from $100 to $500 or more.
Tech Notes for B3951 Saturn
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 Saturn Code
1. What does the OBDII code B3951 mean on a Saturn?
B3951 indicates a fault in the right rear turn signal circuit, typically caused by an open or shorted wire, bad bulb, or a defective module.
2. What are the symptoms of the B3951 code on a Saturn?
Common symptoms include the right rear turn signal not working, rapid flashing of the turn signal indicator on the dashboard, or a warning light.
3. What causes the B3951 code to trigger?
The code can be caused by a burnt-out bulb, corroded or damaged wiring, a faulty turn signal socket, or a malfunctioning Body Control Module (BCM).
4. How can I diagnose the B3951 code on my Saturn?
Start by checking the right rear turn signal bulb and socket, inspect the wiring for damage or corrosion, and use a scan tool to verify the fault in the circuit.
5. Can I still drive with the B3951 code on my Saturn?
While the vehicle may still be drivable, the right rear turn signal malfunction can pose a safety risk and may result in a traffic citation.
6. How do I fix the B3951 code on a Saturn?
Replace the right rear turn signal bulb if burnt out, repair or replace damaged wiring or connectors, and check the BCM for faults if the issue persists.
7. How much does it cost to repair the B3951 code on a Saturn?
Costs vary, but replacing a bulb typically costs $10-$30, while repairing wiring or replacing the BCM could range from $100 to $500 depending on labor and parts.
8. Can a faulty BCM cause the B3951 code?
Yes, a malfunctioning Body Control Module can fail to send proper signals to the turn signal circuit, triggering the B3951 code.
9. How do I reset the B3951 code on my Saturn?
After repairs, use an OBDII scan tool to clear the code. If the issue is resolved, the code should not return.
10. What tools do I need to troubleshoot the B3951 code?
You'll need a basic multimeter to test wiring, a scan tool to read and clear codes, and possibly a service manual for wiring diagrams.
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