Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Cruise SET Indicator Light Circuit

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / Cruise Control / Dynamic Radar Cruise Control System(for Hv Model) / Cruise SET Indicator Light Circuit

DESCRIPTION

The hybrid vehicle control ECU illuminates the cruise SET indicator by sending indicator output demand 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. The cruise SET indicator light circuit uses CAN communication. If the cruise SET indicator is not functioning correctly, check for CAN communication DTCs before troubleshooting this circuit.

CAUTION / NOTICE / HINT

CAUTION:

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

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

NOTICE:

  • Before replacing the hybrid vehicle control ECU, refer to Registration.

    Click here

  • 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 TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.

(e) Perform "Active Test" according to the display on the Techstream.

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 TECHSTREAM

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

(b) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (112 mph).

(c) Enter the following menus: Powertrain / Radar Cruise 1 / Data List.

(d) Read the Data List according to the display on the Techstream.

Powertrain > Radar Cruise1 > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

-SET Switch

-SET switch signal

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
A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

B

REPLACE COMBINATION METER ASSEMBLY

C

REPLACE HYBRID VEHICLE CONTROL ECU

    Cruise Main Indicator Light Circuit

    Data List / Active Test

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