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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 233 (DTCS P0219 To P1D93 - 8HP45 Automatic Transmission - 1500) >> Diagnosis And Testing >> P1601-Internal TCM Computer Error >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2013 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

The Transmission Control Module (TCM) checks the integrity of each RAM location by writing to it and reading back from it. The read value should be the same as the written value. The transmission will be placed into limp-in mode.

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