Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GMTG
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 09/2022]
Title: EXTERIOR PANELS / TRIM: GRILLE SHUTTER SYSTEM: DATA LIST / ACTIVE TEST; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]

DATA LIST / ACTIVE TEST

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

DATA LIST

(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 / Grille Shutter / Data List.

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

Body Electrical > Grille Shutter > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Shutter Operation State

Grille shutter operation state

Standby, Open, Close or Prohibit

Standby: Grille shutter in standby mode

Open: Grille shutter opening

Close: Grille shutter closing

Prohibit: Grille shutter operation disabled

-

Shutter Control State

Grille shutter control state

Normal or Maintenance

Normal: Normal mode

Maintenance: Maintenance mode

-

Close Motor Lock

Motor lock detection state during grille shutter closing operation

Undetected or Detected

Undetected: Motor lock not detected during closing operation

Detected: Motor lock detected during closing operation

Displays state of last closing operation

Open Motor Lock

Motor lock detection state during grille shutter opening operation

Undetected or Detected

Undetected: Motor lock not detected during opening operation

Detected: Motor lock detected during opening operation

Displays state of last opening operation

+B Power Voltage

Auxiliary battery voltage

Min.: 0.8 V, Max.: 20 V

11 to 14 V

-

Last Operation Direction

Direction of last grille shutter operation

Unknown, Open or Close

Unknown: Direction of last grille shutter operation unknown

Open: Last grille shutter operation was in opening direction

Close: Last grille shutter operation was in closing direction

-

Shutter Operation Initialization Result

Result of grille shutter system initialization

OK or NG

OK: Initialization was completed successfully

NG: Initialization was not completed successfully

-

Shutter Operation Half-Open Result for Active Test

Result of Active Test Shutter Half-Open Operation

OK or NG

OK: Operation is normal

NG: Operation is abnormal

-

Shutter Operation Lock Detection Result for Active Test

Result of Active Test Shutter Closing Operation Lock Detection and Shutter Opening Operation Lock Detection

Normal, Open Error or Close Error

Normal: Normal lock detected

Open Error: Lock detected in abnormal position while performing Active Test Shutter Opening Operation Lock Detection

Close Error: Lock detected in abnormal position while performing Active Test Shutter Closing Operation Lock Detection

-

Shutter Operation Fixed Length Result for Active Test

Result of Active Test Shutter Closing Operation Fixed Length and Shutter Opening Operation Fixed Length

Normal, Open Error or Close Error

Normal: Normal operation length

Open Error: Abnormal operation length while performing Active Test Shutter Opening Operation Fixed Length

Close Error: Abnormal operation length while performing Active Test Shutter Closing Operation Fixed Length

-

Shutter Operation Mode

Grille shutter operation mode

Normal Mode, Change Sleep Mode, Sleep Mode or Release Sleep Mode

Normal Mode: Normal mode

Change Sleep Mode: Winter control transition mode

Sleep Mode: Winter control mode

Release Sleep Mode: Winter control cancel mode

-

Last Operation Pulse Value

Number of pulses of last grille shutter operation

0 to 65535 edge

Between 0 to 65535 edge

-

Current Position

Current grille shutter position

0 to 65535 edge

Between 0 to 65535 edge

-

Maximum Open Position

Grille shutter open position

0 to 65535 edge

Between 0 to 65535 edge

-

Maximum Close Position

Grille shutter closed position

0 to 65535 edge

Between 0 to 65535 edge

-

Shutter Initialization

Grille shutter system initialization

Incomplete or Complete

Incomplete: Grille shutter system initialization has not been completed

Complete: Grille shutter system initialization has been completed

-

End Shaft SW

End shaft switch state

Unset, Fully Open Position, Fully Closed Position or Half Open Position

Unset: Grille shutter position unknown

Fully Open Position: Grille shutter in fully open position

Fully Closed Position: Grille shutter in fully closed position

Half Open Position: Grille shutter between fully open and fully closed position

-

Ambient Temperature

Ambient Temperature

-78.75 to 78.125°C

Actual ambient temperature displayed (in °C)

-

Regulator Pressure Sensor

Refrigerant pressure

0.0147 to 3.7450 MPa

Actual refrigerant pressure displayed (in MPa)

-

Engine Coolant Temperature

Engine coolant temperature

16 to 127°C

Actual engine coolant temperature displayed (in °C)

-

Code Clear Request Flag

Reception condition of DTC clear request signal to the grille shutter ECU from the ECM

0 or 1

0: Not receiving DTC clear request signal

1: Receiving DTC clear request signal

-

Driving Cycle Change Flag

Reception condition of driving cycle transition signal from ECM*

0 or 1

0: Not receiving driving cycle transition signal

1: Receiving driving cycle transition signal

Not applicable

IG SW

Power switch

0 or 1

0: Power switch off or on (ACC)

1: Power switch on (IG)

-

HV Control Coolant Temperature

Inverter coolant temperature

16 to 127°C

Actual inverter coolant temperature displayed (in °C)

-

Shutter Open Request

Reception condition of grille shutter open request signal from hybrid vehicle control ECU

0 or 1

0: Not receiving grille shutter open request signal

1: Receiving grille shutter open request signal

-

HV Control Coolant Temperature Error Flag

Inverter coolant temperature sensor condition sent from hybrid vehicle control ECU

0 or 1

0: Inverter coolant temperature sensor is normal

1: Inverter coolant temperature sensor is malfunctioning

-

Vehicle Speed

Vehicle speed

0 to 255 km/h

Actual vehicle speed displayed (in km/h)

-

Number of DTC

Number of DTCs currently stored

0 to 255

Number of DTCs will be displayed

-
  • *: Although the item is displayed on the Techstream, it is not applicable to this vehicle.

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

ACTIVE TEST

(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 / Grille Shutter / Active Test.

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

Body Electrical > Grille Shutter > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Shutter Closing Operation Lock Detection

Function to perform a closing operation until motor lock is detected and the motor stops

OFF/Close

-

Shutter Opening Operation Lock Detection

Function to perform an opening operation until motor lock is detected and the motor stops

OFF/Open

-

Shutter Closing Operation Fixed Length

Function to perform a closing operation until motor lock is detected or the motor operates a specified amount

OFF/Close

-

Shutter Opening Operation Fixed Length

Function to perform an opening operation until motor lock is detected or the motor operates a specified amount

OFF/Open

-

Shutter Half-Open Operation

Function to perform an opening or closing operation until the grille shutter reaches the half open position

OFF/ON

-