Toyota Yaris: Dynamic Radar Cruise Control System / Lost Communication with Image Processing Module "A" Missing Message (U023A87)

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Lost Communication with Image Processing Module "A" Missing Message (U023A87)

DESCRIPTION

The millimeter wave radar sensor assembly is connected to the forward recognition camera via the CAN communication line. If the millimeter wave radar sensor assembly receives signals indicating that its communication with the forward recognition camera is abnormal, the millimeter wave radar sensor assembly stores DTC U023A87.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	DTC Output from
U023A87	Lost Communication with Image Processing Module "A" Missing Message	When the ignition switch is ON for 3 seconds or more and the dynamic radar cruise control system is operating, a communication data malfunction between the forward recognition camera and the millimeter wave radar sensor assembly continues for approximately 2 seconds or more.	Pre-collision system	Radar Cruise2

PROCEDURE

1.	GO TO PRE-COLLISION SYSTEM

HINT:

If DTC U023A87 is output by the dynamic radar cruise control system, perform troubleshooting for the pre-collision system.

Click here

END

Lost Communication with ECM/PCM "A" Missing Message (U010087,U012687,U012987,U015587)

DESCRIPTION The millimeter wave radar sensor assembly communicates with each sensor and ECU via CAN communication. If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored...

Internal Control Module Software Incompatibility Not Programmed (U030051,U030057)

DESCRIPTION If the millimeter wave radar sensor assembly cannot confirm the vehicle information (powertrain type) sent from the ECM, the millimeter wave radar sensor assembly stores DTC U030051...

Other information:

Toyota Yaris XP210 (2020-2026) Owner's Manual: Laser Sensor

The Low Speed Pre-Collision System laser sensor is installed at the top of the windshield near the rearview mirror. Always keep the surface of the windshield around the laser sensor clean to assure proper operation of the Low Speed PreCollision System...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: To prevent injury due to contact with an operating V-ribbed belt or cooling fan, keep your hands and clothing away from the V-ribbed belt and cooling fan when working in the engine compartment with the engine running or the ignition switch ON...