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Circuit Description

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

The Torque Converter Clutch (TCC) solenoid is used to engage the lock-up clutch. The Powertrain Control Module (PCM) outputs system voltage to turn ON/energize or remove voltage to turn OFF/de-energize to control the hydraulic pressure to the lock-up valve within the transaxle. The TCC solenoid is always OFF in 1st and 2nd gears. The TCC is ON in 3rd and 4th gears when the PCM deems it appropriate.

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