DTC U0242: Lost Communication With Headlamp Control Module "B" [10/2015 - 08/2019]: Description

This DTC is output when a headlight ECU sub-assembly RH internal malfunctioning or the communication malfunction between headlight ECU sub-assembly LH and headlight sub-assembly RH is 10 seconds or more. The headlight ECU sub-assembly LH stores DTC U0242.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
U0242	Lost Communication With Headlamp Control Module "B"	Either of the following conditions is met: Headlight ECU sub-assembly RH internal malfunctioning The communication malfunction between headlight ECU sub-assembly LH and headlight ECU sub-assembly RH is 10 seconds or more	Headlight ECU sub-assembly LH Headlight ECU sub-assembly RH Harness or connector	-