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Home >> Subaru >> 2023 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> System >> Auto Start Stop System (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U1604: Lost Communication With Dc/Dc Converter Module 1 >> General Description >> Execution Condition
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Execution Condition

Secondary parameters Execution condition
CAN communication Normal
After IG ON 9 s or more
System Voltage (Auto Start Stop) 10.5 V or more
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