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Home >> Jeep >> 2006 >> Commander Base, 4.7 N, 4WD >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 545RFE Automatic Transmission- Electrical Diagnostics >> 545RFE - Electrical Diagnostics >> DTC Troubleshooting >> P0604-Internal Control Module Ram >> Possible Causes

Possible Causes

Possible Causes 
POWER OR GROUND CIRCUIT
POWERTRAIN CONTROL MODULE

Always perform the  45RFE/545RFE PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE   before proceeding. 

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