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Home >> Toyota >> 2021 >> C-HR Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Lane Departure Alert System - Diagnostic Codes & Circuit Tests) >> LANE DEPARTURE ALERT SYSTEM (w/ Steering Control) >> DTC U023A: Lost Communication with Front Camera Module [02/2017 - 08/2020] >> Description

DTC U023A: Lost Communication with Front Camera Module [02/2017 - 08/2020]: Description

WARNING: This page is about a different car, the 2020 Toyota C-HR, 2019 Toyota C-HR, and 2018 Toyota C-HR. However, it is still accessible from the selected car via links, so may be relevant.

When a communication error between the forward recognition camera and the power steering ECU assembly is detected, the forward recognition camera notifies other ECUs and DTC U023A is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
U023A Lost Communication with Front Camera Module When the vehicle is being driven at a speed of 5 km/h (3 mph) or more 2 seconds after the ignition switch is turned ON, a communication malfunction between the forward recognition camera and the power steering ECU assembly is detected for 5 seconds or more.
  • CAN communication system
  • Forward recognition camera
  • Power steering ECU assembly