| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000025IF3 |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [09/2022 - ] |
| Title: EXTERIOR PANELS / TRIM: GRILLE SHUTTER SYSTEM: Grille Shutter does not Operate; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ] | ||
|
Grille Shutter does not Operate |
DESCRIPTION
The radiator shutter sub-assembly may not operate due to foreign matter, such as snow or dirt, or a drop in voltage.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Before performing troubleshooting, change the grille shutter control mode to maintenance mode.
Click here
![2023 - 2025 MY Corolla Corolla HV [09/2022 - ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION](/t3Portal/stylegraphics/info.gif)
-
If the radiator shutter sub-assembly has been replaced with a new one, perform initialization and change the grille shutter control mode.
Click here
- Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
|
1. |
PERFORM UTILITY USING GTS (SWITCH GRILLE SHUTTER CONTROL MODE) |
(a) According to the display on the GTS, change the grille shutter control mode from normal mode to maintenance mode.
Powertrain > Engine > Utility
|
Tester Display |
|---|
|
Switch Grille Shutter Control Mode |
|
|
2. |
CHECK FOR GRILLE SHUTTER (FOREIGN MATTER AND ICE) |
(a) Check the area around the shutters and the links of the grille shutter for foreign matter and ice.
OK:
The radiator shutter sub-assembly is free of foreign matter and ice.
| NG |
|
FOREIGN OBJECT (REMOVE FOREIGN MATTER AND/OR ICE) |
|
|
3. |
CHECK RADIATOR SHUTTER SUB-ASSEMBLY |
(a) Remove the radiator shutter sub-assembly.
Click here
(b) While using fingers to pinch the fin at the location shown in the illustration, fully open and close the radiator shutter assembly manually and check that it moves smoothly.
HINT:
If the fin is pinched with fingers far from the swing grille actuator assembly, the function may not be able to be inspected correctly.
|
*a |
Swing Grille Actuator Assembly |
*b |
Fin |
OK:
The radiator shutter sub-assembly moves smoothly.
| NG |
|
|
|
4. |
CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(b) Turn the power switch off and wait for at least 30 seconds.
|
|
5. |
CHECK FOR DTC |
(a) Check for DTCs.
Powertrain > Engine > Trouble Codes
OK:
DTCs are not output.
| NG |
|
|
|
6. |
CHECK HARNESS AND CONNECTOR (EXTENSION WIRE ASSEMBLY - POWER SUPPLY AND BODY GROUND) |
(a) Disconnect the A extension wire assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
A-1 (+B) - A-3 (GND) |
Power switch ON |
11 to 14 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
7. |
INSPECT EXTENSION WIRE ASSEMBLY |
(a) Remove the extension wire assembly.
Click here
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| OK |
|
| NG |
|
|
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