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DTC C1304/27 EPS Control System Malfunction: Description

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

The skid control ECU communicates with the power steering ECU via CAN communication.

If a malfunction in the electronic power steering (EPS) control system is detected, cooperative control of the steering is prohibited by the fail-safe function.

DTC DETECTION CONDITION

DTC Code Information Code DTC Detection Condition Trouble Area
C1304/27 376 The EPS system fail signal continues to be output for 5 seconds or more
  • Electronic power steering system
  • Brake control system