B3951 Saturn Code - Right Rear Turn Signal Circuit

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.

Common symptoms include the right rear turn signal not working, rapid flashing of the turn signal indicator on the dashboard, or a warning light.

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).

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.

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.

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.

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.

Yes, a malfunctioning Body Control Module can fail to send proper signals to the turn signal circuit, triggering the B3951 code.

After repairs, use an OBDII scan tool to clear the code. If the issue is resolved, the code should not return.

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.