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Headlamp Switch C205

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Headlamp Switch C205 Pins
G03245666Courtesy of FORD MOTOR CO.
HEADLAMP SWITCH C205 CONNECTOR CIRCUIT REFERENCE

Pin Number (s) Circuit Designation/Description Normal Condition/Measurement
1 1205 (BK) illumination ground 0 volts, less than 5 ohms between the headlamp switch and chassis ground
2 1418 (LB/WH) dimmable backlighting power supply 0 volts with the headlamp switch in the OFF position. Greater than 10 volts with the instrument panel dimmer switch in the full illumination position and the headlamp switch in the PARK/ON position.