Component Testing Procedure
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Interior lamps circuit | 2 and 4 | Interior lamps | Closed circuit |
| Off | Open circuit | ||
| Illumination dimmer resistor | 1 and 4 | Rotate knob clockwise | Ohmmeter will show smoothly increasing resistance |