Lexus ES: 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.
| Change Control Mode (Normal Mode → Maintenance Mode) | Change Control Mode (Maintenance Mode → Normal Mode) | Initialize | |
| Before removing the swing grille actuator assembly and radiator shutter sub-assembly | ○ | - | - |
| When the swing grille actuator assembly has been replaced with a new one | - | ○ | ○ |
| After installing the swing grille actuator assembly and radiator shutter sub-assembly | - | ○ | ○ |
| Before troubleshooting | ○ | - | - |
| After troubleshooting | - | ○ | - |
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 / Grille Shutter / Utility.
Body Electrical > Grille Shutter > Utility| Tester Display |
|---|
| Grille Shutter Control Mode Switching |
(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 / Grille Shutter / Utility.
Body Electrical > Grille Shutter > Utility| Tester Display |
|---|
| Grille Shutter Control Mode Switching |
(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.
Body Electrical > Grille Shutter > Trouble Codes(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 / Grille Shutter / Utility.
Body Electrical > Grille Shutter > Utility| Tester Display |
|---|
| Grille Shutter Initialization |
(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.
Body Electrical > Grille Shutter > Trouble CodesREAD NEXT:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
Before performing troubleshooting, change the grille shutter control mode to maintenance mode.
Click here
If the swing grille actuator assembly has been replaced
Terminals Of Ecu
TERMINALS OF ECU CHECK SWING GRILLE ACTUATOR ASSEMBLY (a) Disconnect the z23 swing grille actuator assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table be
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) Grille shutter system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunc
SEE MORE:
Terminals Of Ecu
TERMINALS OF ECU CLEARANCE WARNING ECU ASSEMBLY (a) Disconnect the N41 clearance warning ECU assembly connector. (b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description C
Open or Short in Steering Angle Sensor +B (C1625)
DESCRIPTION This DTC is stored if the rear television camera assembly receives a signal via CAN communication from the steering sensor that indicates a power supply problem. DTC No. Detection Item DTC Detection Condition Trouble Area C1625 Open or Short in Steering Angle Sensor +B O
