Nissan Altima
2019–2024

Illustration — use it to know where to look.

Location

Driver's side, lower dashboard area to the left of the steering column. On the L34 (2019+), the port is tucked behind and above the lower dashboard trim panel and the knee airbag module — it is NOT visible without ducking the head under the dash. A flashlight is required. The port is accessible from beneath the panel without removing any trim; reach up and behind the lower dash fascia to feel for the 16-pin OBD2 connector. Confirmed across multiple owner reports on 2019, 2021, and 2022 Altima models.