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

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Cruise Main Indicator Light Circuit

DESCRIPTION

When the dynamic radar cruise control system is turned on using the cruise control main switch, the cruise control indicator (vehicle-to-vehicle distance control mode) illuminates. The ECM uses this and other indicators to indicate the status (presence or absence of a preceding vehicle, vehicle-to-vehicle distance, malfunction of system or related systems) of the dynamic radar cruise control system.

CAUTION / NOTICE / HINT

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

B

GO TO METER / GAUGE SYSTEM

A

2.

READ VALUE USING GTS (CRUISE INDICATOR)

(a) Read the Data List according to the display on the GTS.

Powertrain > Radar Cruise1 > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Cruise Indicator

Cruise control indicator status

ON or OFF

ON: Cruise control indicator illuminates

OFF: Cruise control indicator turns off

-

Powertrain > Radar Cruise1 > Data List

Tester Display

Cruise Indicator

Result

Proceed to

The cruise control indicator illuminates and turns off according to the operation of the cruise control main switch.

A

The cruise control indicator does not illuminate but the Data List items change according to the operation of the cruise control main switch.

B

The cruise control indicator does not illuminate and the Data List items do not change according to the operation of the cruise control main switch.

C

A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

B

REPLACE COMBINATION METER ASSEMBLY

C

REPLACE ECM

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    Categories

    Liftgate/Trunk Lid

    WARNING

    Never allow a person to ride in the luggage compartment/trunk

    Allowing a person to ride in the luggage compartment/trunk is dangerous. The person in the luggage compartment/trunk could be seriously injured or killed during sudden braking or a collision.

    Do not drive with the liftgate/trunk lid open

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