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Home >> Dodge and Ram >> 2004 >> Viper >> Repair and Diagnosis >> Engine Performance >> System >> Electronic Control Modules >> Powertrain Control Module >> Description >> Operation - Data Bus Communication Receive - Pcm Input

Operation - Data Bus Communication Receive - Pcm Input

The PCM uses the SCI communication bus to perform engine diagnostics and flash operations. The PCM uses the J1850 bus to communicate with various electronic modules within the vehicle.