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Home >> Buick >> 2018 >> Enclave Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U0074: Control Module Communication Powertrain Expansion CAN Bus Off Malfunction >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2017 GMC Acadia Limited, 2017 Chevrolet Traverse, and 2017 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Powertrain High Speed CAN Serial Data (+) U0074 U0074 U0074 -
Powertrain High Speed CAN Serial Data (-) U0074 U0074 U0074 -
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