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Home >> Chevrolet >> 2014 >> Express 1500 LS, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U0074: Control Module Powertrain Expansion Communication Bus >> Conditions for Setting the DTC

Conditions for Setting the DTC

The control module setting the DTC has attempted to establish communications on the powertrain high speed GMLAN serial data circuits more than 3 times.

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