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Home >> Acura >> 2008 >> TSX Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Advanced Diagnostics >> DTC P0685: Engine Control Module (ECM)/Powertrain Control Module (PCM) Power Control Circuit Malfunction >> Diagnosis Details >> Conditions for illuminating the MIL
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Conditions for illuminating the MIL

When another MIL-illuminating failure has already been detected: When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the ECM/PCM memory.

When another MIL-illuminating failure has not yet been detected: When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the ECM/PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

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