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Home >> Chevrolet >> 1992 >> Corsica V6-191 3.1L >> Repair and Diagnosis >> Instrument Panel, Gauges and Warning Indicators >> Speedometer Head >> Description and Operation >> Base Cluster

Base Cluster


The Speedometer pointer is moved by the magnetic field of two coils. These coils are driven by a solid state unit.

The Vehicle Speed Sensor located in the transaxle generates an AC voltage that is sent to the Engine Control Module (ECM). The ECM processes this voltage into a square wave. The pulses generated are sent to the Speedometer at 4000 pulses per mile.