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Old 06-15-2016, 12:30 AM   #4
dfwright
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Join Date: Jan 2009
Location: San Antonio, Texas
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Re: Wiring diagram of instrument cluster

Without a wire on 5, the temperature light would not be able to come on. In order for that light to come on, it looks like pin 5 would need a ground connection, likely through the temperature sensor. With a temperature gauge, I guess they just didn't wire the idiot light up, but the lamp and housing are still there.

Interesting
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1972 C10 LWB, 350/350

Deconstruction began 5/2009, mostly completed restoration, 5/2017
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