Locate cabin air filter for a 2001 toyota tacoma

SOURCE: cabin Air Filter

Open the glove box

Remove all of the contents in the glove box

On the right side, dis-engage the rod going to the split plastic pin on the glove box door

Squeeze both other sides of the glove box to defeat the stops that keeps the glove box from falling open

Observe the box in the area vacated by letting the glove box drop down, this is the heater box

Locate a rectangular cover (approx 7 " x 2"), it is located on the face of the box; facing you.

Pull this cover out towards you, the cabin air filter is located in the tray that is connected to this rectangular cover.

This should help you replace it.

SOURCE: Air Fuel Sensor on a 2001 Toyota tacoma

4 cylinder: one air-fuel sensor (on the pipe after the manifold) and one oxygen sensor after the catalytic converter

6 Cylinder: two air-fuel sensors (one for each manifold) and one oxygen sensor after the catalytic converter.

SOURCE: 2002 Toyota Sienna cabin air filter??

Unfortunately, no.
Toyota began installing the cabin air filters in the Sienna product starting in 2003.

SOURCE: Engine Air Filter

The engine air filter is located in the box behind the battery. This box should have 4 metal clips that pop off and you and pick up the top of the box and underneath is the filter.

SOURCE: How I can replace cabin air filter in toyota rav4?

the cabin filter is behind glove box, open glove box an release it so it opens farther to get to filter ( should be release clips at sides of glove box)