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Home >> Dodge and Ram >> 1995 >> 2500 4x4 Pickup V10-488 8.0L Magnum >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Description and Operation >> Functional Operation >> Inputs and Outputs >> Inputs and Outputs >> Tachometer Output

Tachometer Output

OPERATION
The Powertrain Control Module (PCM) output signals the tachometer on the instrument panel. The PCM calculates engine RPM based on input from the crankshaft position sensor.
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