Quote:
Originally Posted by cpnbnanamn
If I'm reading the diagram correctly, it's activated by the headlight switch?
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Yes, rotating the headlight knob all the way counterclockwise should close the contacts that ground the white wire and turn on the dome light. Rotating the knob also varies the brightness of the instrument panel lights.
Quote:
Originally Posted by cpnbnanamn
Do these trucks really not have a door jamb switch for the dome light?
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Door jamb switches were not standard issue in these trucks. I believe they may have been available as an option and/or part of some of the upper level trim packages.
You can add door jamb switches if desired by connecting them to the existing white wire. That way, the dome light will come on when any one of the switches grounds that wire.