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Home >> Dodge or Ram Truck >> 1998 >> RAM 2500 Van V6-3.9L VIN X >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Description and Operation >> Inputs and Outputs >> Outputs >> Tachometer-PCM Output

Tachometer-PCM Output

The Powertrain Control Module (PCM) supplies engine rpm values to the instrument cluster tachometer.

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