DTC U0235-87: Lost Communication with Cruise Control Front Distance Range Sensor Missing Message [06/2018 - 07/2019]: Description

WARNING: This page is about a different car, the 2021 Lexus ES 300h, 2020 Lexus ES 300h, and 2019 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

The forward recognition camera and millimeter wave radar sensor assembly communicate via CAN communication. If a signal is not received from the millimeter wave radar sensor assembly, the forward recognition camera stores a DTC.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
U0235-87	Lost Communication with Cruise Control Front Distance Range Sensor Missing Message	3 seconds or more after the power switch is turned on (IG), a communication malfunction with the millimeter wave radar sensor assembly is detected for 2 seconds or more.	CAN bus line Forward recognition camera Millimeter wave radar sensor assembly Headlight ECU sub-assembly LH

Pattern	DTC Location Name (Techstream Displayed Name)		Suspected Area (Malfunction Status)
	Forward recognition camera (Pre-Collision System)	Millimeter wave radar sensor assembly (Front Radar Sensor)
	U0235-87	U0104-87
Pattern 1	◦	◦	Open in CAN communication line (forward recognition camera - CAN junction connector) Open in CAN communication line (millimeter wave radar sensor assembly - CAN junction connector) CAN junction connector disconnected CAN junction connector Short in CAN communication line Open or short in forward recognition camera internal circuit Open or short in millimeter wave radar sensor assembly internal circuit Short in headlight ECU sub-assembly LH internal circuit
Pattern 2	◦	-	Millimeter wave radar sensor assembly connector disconnected Millimeter wave radar sensor assembly power supply circuit malfunction Millimeter wave radar sensor assembly internal malfunction Forward recognition camera internal malfunction

◦: DTC is stored

-: DTC is not stored

HINT:

If the DTCs are output simultaneously, the inspection area can be narrowed down.