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DTC U0104-87: Lost Communication with Cruise Control Module Missing Message [05/2019 - ]: Description

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

The millimeter wave radar sensor assembly communicates with the forward recognition camera via CAN communication.

If a communication error is detected between the forward recognition camera and millimeter wave radar sensor assembly, the millimeter wave radar sensor assembly stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area
U010487 Lost Communication with Cruise Control Module Missing Message Detection condition: 
  1. Power switch on (IG)

Malfunction status: 
  1. Communication malfunction with the forward recognition camera is detected

Malfunction duration: 
  1. 10 seconds or more
  • Local bus (Open or short)
  • Forward recognition camera
  • Millimeter wave radar sensor assembly

HINT: 

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

Pattern DTC output part name
(Display on Techstream)
Suspected Area (Malfunction Status)
Millimeter Wave Radar Sensor Assembly
(Front Radar Sensor)
Forward Recognition Camera
(Pre-Collision System)
U010487 U023587
Pattern 1 Local bus (Open or short)
Forward recognition camera (Internal malfunction)
Millimeter wave radar sensor assembly (Internal malfunction)
Pattern 2 - Millimeter wave radar sensor assembly (Internal malfunction)

() ◦: DTC is output-: DTC is not output