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Home >> Chevrolet >> 2017 >> SS Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U0074 (Powertrain Expansion Bus): Control Module Communication Powertrain Expansion CAN Bus Off Malfunction >> Conditions for Setting the DTC

Conditions for Setting the DTC

A supervised periodic message that includes the transmitter device availability has not been received for more than 450 ms.