Operation CHARM
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Pontiac
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1995
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Grand AM V6-3100 3.1L VIN M SFI
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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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Base Cluster
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Odometer
Odometer
Both the Trip Odometer and the Total
Odometer
are mechanical displays. Each is driven by an electric motor that is fed from the solid state circuit board. These stepper motors turn in response to the number of pulses received from the PCM.