LIGHTING (EXT): AUTOMATIC HIGH BEAM SYSTEM: U023587; Lost Communication with Cruise Control Front Distance Range Sensor Missing Message; 2021 MY RAV4 RAV4 HV [08/2020

Last Modified: 05-08-2025	6.11:8.1.0	Doc ID: RM100000001WDIJ
Model Year Start: 2021	Model: RAV4	Prod Date Range: [08/2020 - 12/2021]
Title: LIGHTING (EXT): AUTOMATIC HIGH BEAM SYSTEM: U023587; Lost Communication with Cruise Control Front Distance Range Sensor Missing Message; 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]

DTC

U023587

Lost Communication with Cruise Control Front Distance Range Sensor Missing Message

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	DTC Output from	Note
U023587	Lost Communication with Cruise Control Front Distance Range Sensor Missing Message	Detection condition: Ignition switch ON Malfunction status: A communication malfunction with the millimeter wave radar sensor assembly is detected Malfunction duration: 5 seconds or more	Pre-collision system	Front Recognition Camera (Front Lighting Control)	-

Pattern	DTC output part name (Display on GTS)					Suspected Area (Malfunction Status)
	Forward Recognition Camera				Millimeter Wave Radar Sensor Assembly
	(Front Recognition Camera(Front Light Control))	Pre-Collision System	Lane Control	Radar Cruise2	Front Radar Sensor
	U023587	U023587	U023587	U023587	U010487
○: DTC is output -: DTC is not output
Pattern 1	○	○	○	○	○	Harness or connector (Open or short)
						Millimeter wave radar sensor assembly (Internal malfunction)
						Forward recognition camera (Internal malfunction)
Pattern 2	○	○	○	○	-	Forward recognition camera (Internal malfunction)
Pattern 2	○	○	○	○	-	Millimeter wave radar sensor assembly (Internal malfunction)

1.	CHECK PRE-COLLISION SYSTEM

(a) Check the pre-collision system.

Click here

HINT:

If DTC U023587 is output by the automatic high beam system, perform troubleshooting for the pre-collision system.

END