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Home >> GMC >> 1989 >> Jimmy 6.2 C >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> 6.2L CEC Description/Operation >> Operation >> Vehicle Speed Sensor

Vehicle Speed Sensor

The Vehicle Speed Sensor (VSS) is installed on the transmission. The ECM will calculate vehicle speed based on a series of pulses provided by the VSS. This calculation is used to control TCC engagement.