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Home >> Jeep >> 2005 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 570 (545RFE Automatic Transmission - Electrical Diagnostics) >> DTC Troubleshooting >> P0602-Control Module Programming Error/Not Programmed >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
  1. 1)  CONTROL MODULE PROGRAMMING ERROR 
    NOTE: Controller is programmed with generic software and will not allow the correct vehicle Powertrain management.

    With the scan tool.

    Record the vehicles controller part number.

    Select Use Controller Part Number under the Flash Tab.

    Flash the controller with the correct software.

    Verify the controller flashed successfully. 

    Test Complete 

    1. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . Perform Quick Learn Procedure.
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