Scion 90981-15021 Bulb

When installing the new bulb, make sure that the three lugs on the mounting base of the bulb socket are aligned with their corresponding cutouts in the headlight housing. Then, insert the bulb socket into the housing and turn it clockwise until it stops.

Remove the instrument cluster and rotate the bulb counterclockwise to remove it.

Depress the release tab and disconnect the electrical connector from the high-beam headlight bulb socket.

Carefully pry it off using a trim removal tool.

Grasp the bulb holder securely and rotate it counterclockwise to remove it from the housing. This step also applies to the fog lamp bulb holder.

Depress the release tab and pull off the connector.

Carefully pry out the interior light housing from the trim panel.

Open the hood. If you're replacing the right-side headlight, remove the windshield washer reservoir for access to the bulb. If you're removing the left-side headlight, remove the cover from the fuse/relay box for access to the bulb. If that doesn't give you enough working room, you can unbolt the fuse/relay box for more access. Otherwise, the headlight housing will have to be removed. Reach behind the headlight assembly and unplug the electrical connector by depressing the clip on the harness connector.

Clip the bulbholder back onto the light unit and clip the trim panel back into place.

Refit the wheel arch liner screws to complete the process.