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Home >> Audi >> 2015 >> A4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 376 (Engine Control System (Diagnostic Codes (P1604-U0293) & Circuit Tests)) >> SFI System >> DTC U0293: Lost Communication with HV ECU [08/2013 - ] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
Monitor runs whenever the following DTCs are not stored None
Both of the following conditions are met -
Auxiliary battery voltage 10.5 V or higher
Power switch On (IG)