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Home >> Jeep >> 2021 >> Compass Altitude, FWD >> Repair and Diagnosis >> Engine Performance >> System >> 2.4L - DTCS P1048 To P1D68 >> DTC Troubleshooting >> P1500-Ecu Configuration Mismatch >> Theory Of Operation
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Theory Of Operation

The Powertrain Control Module (PCM) stores a copy of the vehicle's module build configuration in its EEPROM. If the stored information in the PCM does not match the information sent over by the Body Control Module (BCM) of what modules are active on the Controlled Area Network (CAN) Bus, the DTC will set.