| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001GLIN |
| Model Year Start: 2020 | Model: GR Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: PARKING BRAKE: ELECTRIC PARKING BRAKE ACTUATOR: ON-VEHICLE INSPECTION; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022] | ||
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT PARKING BRAKE ACTUATOR ASSEMBLY (for Gasoline Model)
(a) With the ignition switch to ON and the wheels not contacting the ground, operate the electric parking brake switch assembly to check the condition of the rear wheels when the electric parking brake is operating and not operating.
OK:
|
Assembly Status |
Condition of Rear Wheels |
|---|---|
|
Lock |
Rear wheels cannot be rotated |
|
Release |
Rear wheels can be rotated |
(b) Pull the electric parking brake switch assembly to the lock side for approximately 1 second and check that the parking brake indicator light (red) turns on.
(c) Push the electric parking brake switch assembly to the release side for approximately 1 second and check that the parking brake indicator light (red) turns off.
(d) At this time, check that the brake warning light / yellow (minor malfunction) does not turn on.
2. INSPECT PARKING BRAKE ACTUATOR ASSEMBLY (for HV Model)
HINT:
Using the Techstream to perform the Active Tests allows relays, VSVs and 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.
(a) Turn the power switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the power switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / Electric Parking Brake / Active Test.
(f) When the vehicle's tires are lifted off the ground and the Techstream is used to operate the electric parking brake, check the condition of the rear tires.
(g) According to the display on the tester, perform the Active Test.
Chassis > Electric Parking Brake > Active Test
|
Tester Display |
|---|
|
PKB Lock Control |
Chassis > Electric Parking Brake > Active Test
|
Tester Display |
|---|
|
PKB Release Control |
OK:
|
Tester Display |
Control Range |
Condition of the Rear Tire |
|---|---|---|
|
PKB Lock Control |
ON |
Lock |
|
PKB Release Control |
ON |
Free |
If the result is not as specified, inspect the electric parking brake actuator.
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![2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - ]; PARKING BRAKE: ELECTRIC PARKING BRAKE ACTUATOR: INSPECTION](/t3Portal/stylegraphics/info.gif)
(h) Turn the power switch on (IG), pull the electric parking brake switch to the lock side for 1 second and check that the parking brake indicator light (red) illuminates.
(i) Push the electric parking brake switch to the release side for 1 second and check that the parking brake indicator light (red) turns off.
(j) Also, check that the brake warning light / yellow (minor malfunction) does not illuminate at this time.
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