Operation CHARM
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Saturn
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2002
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SL L4-1.9L SOHC VIN 8
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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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General Information
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Speedometer And Tachometer
Speedometer And Tachometer
The input information for the speedometer and
tachometer
is supplied over the Class 2 serial data link by the Powertrain Control Module
(PCM)
.