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DTC C0279: Powertrain Configuration Not Valid

  1. Perform diagnostic system check. See DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. After performing diagnostic system check, go to next step.
  2. Using scan tool, clear DTCs. Turn ignition on and recheck DTCs. If DTC resets, go to next step. If DTC does not reset, problem is intermittent.
  3. Verify if correct PCM is installed in vehicle. If correct PCM is installed, go to next step. If incorrect PCM is installed, go to step  6.
  4. Using scan tool, read trim level calibration of PCM. If PCM trim level is correct, problem is intermittent. If PCM trim level is not correct, go to next step.
  5. Program PCM using required equipment. After programming PCM, go to step  7.
  6. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
  7. Using scan tool, clear DTCs. Recheck for DTCs. If DTC resets, go to step  2. If DTC does not reset, system is okay.
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