LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2017 >> NX 200t Base, AWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes & Circuit Tests >> Pre-Collision System >> DTC C1A40: ENG / EHV Device [10/2014 - 09/2017] >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC C1A40: ENG / EHV Device [10/2014 - 09/2017]: Description

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

When DTC C1A40 is stored, the SFI system or Automatic transaxle system DTC will also be stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A40 ENG / EHV Device While the engine switch is on (IG), a SFI system malfunction signal is detected for 3 seconds or more.
  • SFI system
  • Automatic transaxle system
  • ECM
  • Driving support ECU assembly