Operation CHARM
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Buick
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1994
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Park Avenue Ultra V6-3.8L SC VIN 1
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Repair and Diagnosis
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Instrument Panel, Gauges and Warning Indicators
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Description and Operation
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Circuit Operation
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Tachometer
Tachometer
The
tachometer
displays engine speed. It is electronically controlled, direct drive display that receives engine speed input from the Electronic Ignition
(EI)
module.