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Home >> Jeep >> 2024 >> Grand Cherokee Summit >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (5.7L - DTCS P058A To P0610) >> DTC Troubleshooting >> P0602-Control Module Programming Error/Not Programmed >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2024 Jeep Grand Cherokee L. 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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