Drivable short-term, but fix now to avoid damage.
This code means the transmission control module detected an electrical problem in the shift solenoid B circuit, which on many vehicles controls the 2-3 gear change. It's usually caused by a failed solenoid, a short or open in the wiring, or a corroded connector. Repairs typically involve testing the circuit, repairing wiring or connectors, and replacing the solenoid if needed.
$150 – $600
Varies by vehicle and root cause.
For short trips you usually can, but it's not recommended. The transmission may shift harshly or enter limp mode, and prolonged driving risks further damage. Have it diagnosed soon.
Most repairs cost between $150 and $600, depending on whether it's a wiring fix, a solenoid replacement, or includes a fluid service.
Yes, it should be treated as a priority. An electrical fault in the shift solenoid can leave you stuck in one gear and, if ignored, lead to bigger transmission problems.
On many vehicles shift solenoid B controls the 2-3 gear change, so you may especially notice harshness or slipping when the transmission tries to shift from second to third.