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Home › Jeep › 2006 › Commander Base, 4.7 N, RWD › 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.