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Home >> Jeep >> 2020 >> Compass Trailhawk >> Repair and Diagnosis >> Engine Performance >> System >> 2.4L - DTCS P0601 To P104A >> DTC Troubleshooting >> P0602-Control Module Programming Error/Not Programmed >> Theory Of Operation

Theory Of Operation

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Each Powertrain Control Module (PCM) has an internal identifier that is programmed in the memory by the manufacturer. The PCM internal identification is checked each time the ignition is turned on.

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