Since I've owned my car the headlamp warning light hasn't functioned. After looking at the wiring diagram I decided to start at the lamp buckets and discovered I have no power at the limit switch (power lead on drivers side). I had the lamps turned on with the buckets down and used a test light at the connector. I did not have the ignition switch turned to on if that matters. Would like suggestions as to where to go next. If the bulb is bad will that not allow power where I checked? As you may have guessed I'm not the brightest light in the room when it comes to electrical things but with some guidance I'd like to try and figure this out.
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Re: 67 electrical help for headlamp warning
The limit switches, wired in parallel, are used to complete the ground side of the circuit connecting to the lamp on the dash; you won't find a voltage to ground on these leads. -
Re: 67 electrical help for headlamp warning
That circuit starts with power from the same terminal on the headlight switch that feeds the 14-ga. blue wire to the dimmer switch. It then goes through the #257 bulb in the warning light through a gray/black wire to the telltale switches on the motors, which are wired in series to ground. The terminals in the bulb are normally-closed, and the bulb should illuminate immediately when you ground anywhere along the gray/black wire to the telltale switches with the headlights on, and it will eventually start flashing when the bi-metallic element in the bulb warms up and begins cycling. If the bulb doesn't illuminate immediately when you ground the gray/black wire, the bulb is probably shot; if the headlights are on, the bulb is getting power (unless the contacts in the bulb socket are bad).Comment
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Thanks Garth & John, wish I was a contortionist *NM*
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