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Home >> Pontiac >> 2006 >> Vibe Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission - Mu4 - Service, Removal & Installation, Troubleshooting & Diagnostics) >> Diagnostic Information and Procedures >> DTC P0773 >> Circuit Description

Circuit Description

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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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