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Testing 57 headlight switch?

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Old Dec 1, 2014 | 11:28 PM
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Default Testing 57 headlight switch?

What terminals do I hook my ohm meter to, to check the rheostat which dims the dash lights?
Any idea of resistance to expect from full open to closed?
Thanks,
Bruce B
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Old Dec 2, 2014 | 09:41 AM
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Ttt ?
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Old Dec 2, 2014 | 09:50 AM
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Hi Bruce,

Here you go... (note I edited my error in the first reply)

To measure resistance of the rheostat connect leads to the Light Blue(Dimmer Sw) terminal and the 3 terminals for the Inst(dash) lights Gray wires go. I don't know the value but it's very low ohms.

The single terminal is for the courtesy light on/off function at the HL switch.












Last edited by rich5962; Dec 2, 2014 at 09:56 AM.
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Old Dec 2, 2014 | 10:03 AM
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Rich,
Great info.
Thanks.
Bruce B
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Old Dec 2, 2014 | 10:08 AM
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'yur welcome....I did edit the reply as i was thinkin' ctsy light's at first...
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