Toyota Yaris: Dynamic Radar Cruise Control System / Cruise SET Indicator Light Circuit

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Cruise SET Indicator Light Circuit

DESCRIPTION

The ECM illuminates the cruise SET indicator by sending request signals to the combination meter assembly via CAN communication. The cruise SET indicator illuminates when the dynamic radar cruise control system is controlling vehicle speed. If the cruise SET indicator is not operating correctly, check for CAN communication DTCs before troubleshooting this circuit.

CAUTION / NOTICE / HINT

CAUTION:

Observe the following items for safety reasons when using the GTS:

Before using the GTS, read the instruction manual.
Prevent the GTS cable from being caught on the pedals, shift lever or steering wheel when driving with the GTS connected to the vehicle.
When driving the vehicle for testing purposes, 2 people are required. One person should operate the GTS while the other drives the vehicle.

NOTICE:

Before replacing the ECM, refer to Service Bulletin.
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 it will not match the information from the vehicle and a DTC may be stored.

PROCEDURE

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

(a) Perform the Active Test according to the display on the GTS.

Body Electrical > Combination Meter > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Multi Display All (White)	Multi-information display (White display)	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

GO TO METER / GAUGE SYSTEM

2.	READ VALUE USING GTS (-SET SWITCH)

(a) Turn the dynamic radar cruise control system on using the cruise control main switch.

(b) Drive at a speed between approximately 30 km/h (20 mph) and 180 km/h (110 mph).

Powertrain > Radar Cruise1 > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
-SET Switch	-SET switch status	ON or OFF	ON: -SET switch pushed OFF: -SET switch not pushed	-

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

-SET Switch

-SET switch status

ON or OFF

ON: -SET switch pushed

OFF: -SET switch not pushed

Powertrain > Radar Cruise1 > Data List

Tester Display
-SET Switch

Result	Proceed to
The cruise SET indicator illuminates and turns off according to the operation of the -SET switch.	A
The cruise SET indicator does not illuminate but the Data List item -SET Switch changes according to the operation of the -SET switch.	B
The cruise SET indicator does not illuminate and the Data List item -SET Switch does not change according to the operation of the -SET switch.	C

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE COMBINATION METER ASSEMBLY

REPLACE ECM

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