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Remove the center portion of the knob. Remove nut. Remove knob. Unscrew retaining nut and push shaft through to back side of dash board. Switch now dangles from wires. Remove battery ground strap before removing any wires from switch. Draw a diagram of the back of the switch and clearly label it with the colors of the wires and their locations, also before removing any wires. Replacement is the reverse of this sequence.

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Q: How do you replace a headlight switch for 1979 Porsche 911 sc?
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