Component testing procedure
INSTRUMENT PANEL DIMMER SWITCH - COMPONENT TESTING
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Dome defeat request circuit | 4 and 5 | Dome lamp (full bright detent) | Closed circuit |
| Dim | Open circuit | ||
| Courtesy lamp request circuit | 2 and 4 | Off (full dark detent) | Closed circuit |
| Off | Open circuit | ||
| Illumination dimmer resistor | 4 and 6 | Rotate knob clockwise | Ohmmeter will show smoothly increasing resistance |