| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000026CPL |
| Model Year Start: 2023 | Model: Corolla | Prod Date Range: [09/2022 - ] |
| Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for HV Model): Electric Parking Brake System AUTO Function Circuit; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] | ||
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Electric Parking Brake System AUTO Function Circuit |
DESCRIPTION
The skid control ECU (brake actuator assembly) receives shift position signals from the hybrid vehicle control ECU via CAN communication to control the electric parking brake system AUTO function (shift-linked function).
The electric parking brake system AUTO function (shift-linked function) is automatically disabled when the power switch on (IG), the brake pedal is depressed and the shift lever is moved out of P. Then, if the shift lever is moved to P, the AUTO function (shift-linked function) automatically operates to apply the electric parking brake.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
The AUTO function (shift-linked function) will not be automatically disabled when the power switch on (IG), the brake pedal is depressed and the shift lever is moved out from P if the electric parking brake switch is moved to the engage side. The AUTO function (shift-linked function) will not automatically operate to apply the electric parking brake when the shift lever is moved to P if the electric parking brake switch is moved to the release side.
PROCEDURE
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1. |
CHECK DTC (HYBRID CONTROL SYSTEM) |
(a) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes
|
Result |
Proceed to |
|---|---|
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DTC is not output |
A |
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DTC is output |
B |
| A |
|
REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)
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![2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL](/t3Portal/stylegraphics/info.gif)
| B |
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