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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0455 To P0606 >> Diagnosis And Testing >> P0602-Control Module Programming Error/Not Programmed >> Diagnostic Test

Diagnostic Test

CONTROL MODULE PROGRAMMING ERROR 

NOTE:

Controller is programmed with generic software and will not allow the correct vehicle Powertrain management.

  1. With the scan tool.
  2. Record the vehicles controller part number.
  3. Select Use Controller Part Number under the Flash Tab.
  4. Flash the controller with the correct software.

    Verify the controller flashed successfully.

    Test Complete