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Home >> Saturn >> 1997 >> SW2 Automatic >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Diagnosis - Mp6 & Mp7 >> Diagnostic Testing >> DTC P0742: TCC Stuck On >> Circuit Description

Circuit Description

PCM should release TCC by opening ground circuit of TCC line actuator. PCM monitors TCC by comparing engine speed to turbine shaft speed. If PCM detects the same engine-to-turbine speed after TCC is commanded off, PCM will set DTC P0742.

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