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Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1381 (1.3L - DTCS P0521 To P0780) >> DTC Troubleshooting >> P0602-Control Module Programming Error/Not Programmed >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.

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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