Remove the front individual map lights.

Disconnect the sunroof switch 12P connector (A) and map light 3P connector (B).

Remove the sunroof switch (C) from the map light housing (D).

Check for continuity between the terminals in each switch position according to the table.

If the continuity is not as specified, replace the illumination bulb or the switch.

Install the switch and light in the reverse order of removal.