1. Disconnect the negative battery cable..
2. Remove the sunvisor..
3. Verify that the continuity between the vanity mirror illumination terminals is as indicated in the table.

If not as indicated in the table, inspect the bulb. If there is no malfunction, replace the sunvisor.

Vanity Mirror Illumination Bulb Removal/Installation
Power Outer Mirror Switch InspectionWarm Up Three Way Catalytic Converter (Wu Twc) Inspection [Mzr 2.0, Mzr 2.5]
CAUTION:
Perform the following procedures, DTC P0421:00 is indicated only.
1. Connect the M-MDS to the DLC-2.
2. Start the engine and warm it up to normal operating temperature.
3. Turn off the engine.
4. Verify that the engine compression is within the specification..
...
Oil Seal (Control Valve Body) Replacement [Fw6 A EL]
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the air cleaner component..
4. Disconnect the control valve body connector.
5. Remove the hose clamp.
6. Cut the oil seal using a utility knife as shown in the following illustration.
CAUTION: ...
License Plate Light Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the lens..
3. Insert a tape-wrapped fastener remover to the position shown in the figure,
release the tabs.
4. Pull the rear bumper in the direction of the arrow (1) in the figure, and
pull out the license plate lights in the directi ...