Conditions for Setting the DTC

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

DTC B3950 01 & DTC B3950 04

Left Rear Turn Signal Lamp/Stop Lamp Control Circuit = Short to Ground
Left Rear Turn Signal Lamp/Stop Lamp Control Circuit = Open/High Resistance

DTC B3950 02

Left Rear Turn Signal Lamp/Stop Lamp Control Circuit = Short to Ground

DTC B3951 01 & DTC B3951 04

Right Rear Turn Signal Lamp/Stop Lamp Control Circuit = Short to Ground
Right Rear Turn Signal Lamp/Stop Lamp Control Circuit = Open/High Resistance

DTC B3951 02

Right Rear Turn Signal Lamp/Stop Lamp Control Circuit = Short to Ground