LEMON Manuals: Even more car manuals for everyone
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 - ] >> Monitor Description

Monitor Description

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.

The Controller Area Network (CAN) is a serial data communication system for real-time application. It is a multiplex communication system designed for on-vehicle use that provides a superior communication speed of 500 kbps and a capability to detect malfunctions. Through the combination of the CANH and CANL bus lines, the CAN is able to maintain communication based on differential voltage.

DTC No. DTC Detection Condition Trouble Area
U0293 Communication with power management control ECU is interrupted (1 trip detection logic).
  • Wire harness
  • Power management control ECU