Scheme 1
Scheme 2
Scheme 3
- Remove the instrument panel (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/tl/iii-2003-2006/remont/exteriorinterior-trim/#dashboard) ).
- Disconnect the 6P connector (A) from the dash lights brightness controller (B).
- Remove the two screws and the dash lights brightness controller.
- Check for continuity between the terminals in each switch position according to the table.
- If the continuity is not as specified, replace the switch.
- If the bulb(s) (C) are faulty, replace the bulb(s).