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Home >> Dodge and Ram >> 2012 >> Charger SXT Plus, RWD, Gas >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Transmission Control Module (TCM) - DTCS P0219 To P1D93 - 8HP45 Automatic Transmission >> Diagnosis And Testing >> P1D20-Multi Module Handshake Failure >> Possible Causes

Possible Causes

Possible Causes 
TCM - INTERNAL ERROR
ESM - INTERNAL ERROR
CAN BUS CIRCUITS OPEN OR SHORTED

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  . 

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