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Home › Subaru › 2017 › WRX Base › Repair and Diagnosis › Engine Performance › System › Engine Control System (Diagnostics) (P2101 To U1712) (2.0L) › Diagnostic Procedure with Diagnostic Trouble Code (DTC) › DTC U0073 Control Module Communication Bus Off › General Driving Cycle

General Driving Cycle

Always perform the diagnosis continuously.

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