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Home >> Jeep >> 2013 >> Compass Limited, AWD, Trans Mfr CD CVT2L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 ((Transmission Control Module (TCM) - Electrical Diagnostics - Continuously Variable Transmission (CVT))) >> DTC Troubleshooting >> P161B-Battery Disconnect / TCM Internal >> Theory Of Operation

Theory Of Operation

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The Transmission Control Module (TCM) calculates the checksum in the EEPROM and compares it to the stored checksum value. If the calculated checksum value does not match the stored checksum value the TCM sets the DTC and illuminates the MIL.