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Home >> Pontiac >> 2008 >> Torrent GXP, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Automatic Transaxle - AF33-5 - DTC P0115 To DTC P2536) >> DTC P0115, P0120, P0703, P0727, P0826, P1779, P2544, or P2637 >> Circuit/System Description

Circuit/System Description

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The automatic transmission control module (TCM) receives transmission related information from the engine control module (ECM) via serial data. When the ECM receives "invalid" transmission related information, it notifies the TCM. The TCM then sets the appropriate DTC.

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