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DTC C1A40: ENG / EHV Device [08/2013 - ]: 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.

When the driving support ECU assembly receives a hybrid control system or SFI system malfunction signal from the power management control ECU or ECM via CAN communication, DTC C1A40 is stored.

DTC No. DTC Detection Condition Trouble Area
C1A40 While power switch is on (IG), hybrid control system or SFI system malfunction signal is detected for 1 second
  • Hybrid control system
  • Power management control ECU
  • SFI system
  • ECM
  • Driving support ECU assembly