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Volt Premier
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Data Communication System - DTC B1000 To DTC U1814
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Diagnostic Information and Procedures
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DTC U0074: Control Module Communication Powertrain Expansion CAN Bus Off
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Diagnostic Fault Information
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Diagnostic Fault Information
Circuit
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance
Powertrain High Speed GMLAN Serial Data (+)
U0074
U0074, U0100-U02FF*
U0074
-
Powertrain High Speed GMLAN Serial Data (-)
U0074
U0074, U0100-U02FF*
U0074
-
* Other DTCs may be set with this fault.