Component testing procedure
MAIN LIGHT SWITCH, EXTERIOR LAMPS - COMPONENT TESTING
| Circuit to test | Connect self powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Headlamp | 3 and 4 | Off | Open circuit |
| Park | Open circuit | ||
| Head | Closed circuit | ||
| Park lamps | 2 and 5 | Off | Open circuit |
| Park | Closed circuit | ||
| Head | Closed circuit | ||
| Interior lamps | 8 and 7 | Knob rotated fully counterclockwise (in detent) | Closed circuit |
| Knob rotated fully clock-wise (out of detent) | Open circuit | ||
| Illumination dimmer | 5 and 1 | Rotate knob clockwise | Ohmmeter will show smoothly increasing resistance |