Toyota Yaris: Lane Tracing Assist System / Diagnosis System

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Lane Tracing Assist System / Diagnosis System

DIAGNOSIS SYSTEM

DIAGNOSIS MODE FUNCTION

(a) When a malfunction occurs in the lane tracing assist system, the LTA indicator light illuminates in yellow and a message is displayed on the multi-information display.

Warning Message	Details	DTC/RoB	LTA Indicator
"LTA Malfunction Visit Your Dealer"	Lane tracing assist system malfunction is detected	Stored	Illuminated in yellow
"LTA Unavailable"	Sensor other than the forward recognition camera sensor is temporary unavailable	Stored	Illuminated in yellow

LTA Indicator Status Chart

LTA Indicator Status	Status
*: When entering the lane departure warning under the lane departure restraint, changes to yellow blinking.
Illuminated in yellow	LTA malfunction or temporarily unavailable
Yellow blinking	Under lane departure warning
Illuminated in green	Steering assistance by the lane departure restraint function or lane centering function in operation*
Illuminated in white	Under lane departure monitoring
Off	LTA off

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle and a DTC may be stored...

Terminals Of Ecu

TERMINALS OF ECU NOTICE: DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the GTS once the inspection has been completed...

Other information:

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