Component Testing Procedure
WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
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 | 8 and 9 | Autolamps | Open circuit |
| Off | Open circuit | ||
| Head | Closed circuit | ||
| Park | Open circuit | ||
| Park lamps | 10 and 12 | Autolamps | Open circuit |
| Off | Open circuit | ||
| Head | Closed circuit | ||
| Park | Closed circuit | ||
| Fog lamps | 2 and 5 | Off | Open circuit |
| On | Closed circuit | ||
| 2 and 6 | Off | Open circuit | |
| On | Closed circuit | ||
| Autolamps | 7 and 8 | Off | Open circuit |
| Autolamps | Closed circuit | ||
| Head | Open circuit | ||
| Park | Open circuit |