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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, AWD >> Repair and Diagnosis (Single Page) >> Transmission >> Transmission Control Systems >> 545RFE Automatic Transmission - Electrical Diagnostics >> Automatic Transmission 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 Pre-Diagnostic Troubleshooting procedure before proceeding. See 45RFE/545RFE PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

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