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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Automatic Transaxle - AISIN Aw21) >> Diagnosis And Testing >> Diagnostics >> Self Diagnosis Function

Self Diagnosis Function

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The Transmission Control Module (TCM) monitors the communication status of each sensor, electronic component and the PCM. If any malfunction should occur, the TCM  function warns the driver and stores the malfunction as a diagnosis code.