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Home >> Jeep >> 2007 >> Commander Base, 3.7 K, AWD >> Repair and Diagnosis (Single Page) >> Transmission >> Transmission Control Systems >> Nag1 Automatic Transmission - Electrical Diagnostics >> Nag1 - Electrical Diagnostics >> DTC Troubleshooting >> P0604-Internal Control Module Ram >> Diagnostic Test

Diagnostic Test

  1. 1) TRANSMISSION CONTROL MODULE 

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    Repair 

    1. Using the schematics as a guide, check the Transmission Control Module (TCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the TCM per the Service Information. Refer to MODULE-TRANSMISSION CONTROL for the appropriate service procedures.
    2. Perform NAG1 TRANSMISSION VERIFICATION TEST .
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