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Home >> Oldsmobile >> 1994 >> Achieva SC, 2.3 A >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Overhaul - 3T40 >> Torque Converter Clutch >> Torque Converter Clutch (TCC) Control Components >> Powertrain Control Module (PCM)
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Powertrain Control Module (PCM)

To determine application of torque converter clutch, PCM receives and processes information from various input devices. These devices may include the vehicle speed sensor, coolant temperature sensor, throttle position sensor, 3rd and 4th gear switches and brake switch. The PCM controls application of torque converter clutch by providing a ground circuit for the TCC solenoid circuit.

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