DTC B242C: Right Headlight ECU Malfunction; DTC B242D: Left Headlight ECU Malfunction [10/2017 - 09/2019]: Description
WARNING: This page is about a different car, the 2019 Toyota C-HR and 2018 Toyota C-HR. However, it is still accessible from the selected car via links, so may be relevant.
These DTCs are stored if the headlight ECU sub-assembly LH or RH detects an internal malfunction. The headlight ECU sub-assembly LH stores DTC B242C or B242D.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| B242C | Right Headlight ECU Malfunction | An internal malfunction occurs in the headlight ECU sub-assembly RH | Headlight ECU sub-assembly RH | - |
| B242D | Left Headlight ECU Malfunction | An internal malfunction occurs in the headlight ECU sub-assembly LH | Headlight ECU sub-assembly LH | - |