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Home >> Lexus >> 2019 >> GS 350 Base, AWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes & Circuit Tests >> Pre-Collision System >> DTC C1A40: ENG / EHV Device [09/2014 - 10/2015] >> Description

DTC C1A40: ENG / EHV Device [09/2014 - 10/2015]: Description

When the driving support ECU receives an SFI system or Automatic transmission system malfunction signal from the ECM, this DTC is stored.

When DTC C1A40 is stored, the engine control system or Automatic transmission system DTC will also be stored.

DTC Code DTC Detection Condition Trouble Area
C1A40 While the engine switch is on (IG), an EFI system malfunction signal is detected for 3 seconds or more.
  • SFI system
  • Automatic transmission system
  • ECM
  • Driving support ECU