Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Initialization

INITIALIZATION

CHANGE GRILLE SHUTTER CONTROL MODE AND/OR PERFORM INITIALIZATION

(a) In the following situations, it is necessary to change the grille shutter control mode and/or initialize the grille shutter system.

NOTICE:

In order to ensure safety, before performing troubleshooting or removing the swing grille actuator assembly or radiator shutter sub-assembly, change the grille shutter control mode to maintenance mode.

HINT:

• When the grille shutter system is in maintenance mode, the grille shutter will not operate when operation signals are received.
• When driving the vehicle to change the grille shutter control mode and/or perform initialization, make sure the grille shutter system is in maintenance mode. Initialization cannot be performed and the grille shutter control mode cannot be changed by driving the vehicle if the grille shutter system is in normal mode.

WHEN USING TECHSTREAM

(a) Change the control mode to maintenance mode.

(1) Connect the Techstream to the DLC3.

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

(3) Turn the Techstream on.

(4) Enter following menus: Body Electrical / Grill Shutter / Utility.

(5) According to the display on the Techstream, change the grille shutter control mode from normal mode to maintenance mode.

(b) Change the control mode to normal mode

(1) Connect the Techstream to the DLC3.

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

(3) Turn the Techstream on.

(4) Enter following menus: Body Electrical / Grill Shutter / Utility.

(5) According to the display on the Techstream, change the grille shutter control mode from maintenance mode to normal mode.

(6) Check for DTCs and make sure that DTC B1333 is not output.

(c) Initialize

(1) Connect the Techstream to the DLC3.

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

(3) Turn the Techstream on.

(4) Enter following menus: Body Electrical / Grill Shutter / Utility.

(5) According to the display on the Techstream, perform initialization.

WHEN DRIVING THE VEHICLE

HINT:

When changing the grille shutter control mode and/or performing initialization by driving the vehicle, the grille shutter control mode can only be changed and initialization can only be performed if the grille shutter system is in maintenance mode.

(a) Turn the power switch on (READY).

(b) Drive the vehicle at speed of 5 km/h (3 mph) or more. The grille shutter control mode will be changed and initialization will be performed automatically when the vehicle speed exceeds 5 km/h (3 mph).

(c) Check for DTCs and make sure that DTC B1333 is not output.