Toyota Yaris: Lane Tracing Assist System / Indicator Circuit

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Lane Tracing Assist System / Indicator Circuit

DESCRIPTION

The forward recognition camera sends indicator illumination request signals to the combination meter assembly via CAN communication.

CAUTION / NOTICE / HINT

NOTICE:

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in the combination meter assembly will not match the information from the vehicle, and may cause a DTC to be output.

PROCEDURE

1.	READ VALUE USING GTS (CAN BUS CHECK)

(a) Using the GTS, perform CAN bus diagnostics and check that there are no malfunctions in ECUs connected to the CAN communication system.

Click here

CAN Bus Check

Result	Proceed to
CAN communication system is normal (DTC (CAN Communication Malfunction, ECU Communication Malfunction/Communication Lost) is not output)	A
CAN communication system is malfunctioning (DTC (CAN Communication Malfunction, ECU Communication Malfunction/Communication Lost) is output)	B

GO TO CAN COMMUNICATION SYSTEM

2.	CHECK FOR DTCs (HEALTH CHECK)

(a) Using the GTS, perform a health check.

Result	Proceed to
DTCs are not output.	A
DTCs are output.	B

GO TO DTC CHART

3.	PERFORM ACTIVE TEST USING GTS (MULTI DISPLAY ALL (WHITE))

(a) Using the GTS, perform the Active Test.

Body Electrical > Combination Meter > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Multi Display All (White)	Multi-information display (White display)	ON	Confirm that the vehicle is stopped with the ignition switch ON.

Body Electrical > Combination Meter > Active Test

Tester Display
Multi Display All (White)

Result	Proceed to
The multi-information display in the combination meter assembly turns on according to the operation of the Active Test.	A
The multi-information display in the combination meter assembly does not turn on according to the operation of the Active Test.	B

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE COMBINATION METER ASSEMBLY

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