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Home >> Acura >> 2007 >> TSX Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Advanced Diagnostics >> DTC P0685: Engine Control Module (ECM)/Powertrain Control Module (PCM) Power Control Circuit Malfunction >> Malfunction Threshold
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Malfunction Threshold

The PGM-FI main relay (FI MAIN) is turned OFF before the ignition switch is turned OFF, and the ECM/PCM stops operating.

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