Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Electric Parking Brake System AUTO Function Circuit

Toyota Corolla Cross (2022-2026) Service Manual / Brake / Parking Brake / Electric Parking Brake System (for Hev Model) / 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 ignition switch is ON, 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 ignition switch is ON, the brake pedal is depressed and the shift lever is moved out from P if the electric parking brake switch assembly 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 assembly is moved to the release side.
  • The electric parking brake may still operate up to 4 minutes after the ignition switch is turned off. Before disconnecting connectors or fuses, turn the ignition switch off and wait 4 minutes or more.
  • After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.

    Click here

  • When replacing the skid control ECU (brake actuator assembly), operate the electric parking brake switch (electric parking brake switch assembly) as the parking brake indicator light blinks (red) when the ignition switch is first turned ON.

PROCEDURE

1.

CHECK DTC (HYBRID CONTROL SYSTEM)

(a) Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Result

Proceed to

DTC is not output

A

DTC is output

B
A

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

B

GO TO HYBRID CONTROL SYSTEM

    READ NEXT:

     Forced Release

     Operation Method

    OPERATION METHOD PROCEDURE 1. PRECAUTION Click here 2. REMOVE REAR SEAT CUSHION ASSEMBLY for HEV Model: Click here for Gasoline Model: Click here 3. REMOVE REAR SEAT CUSHION L

     Parking Brake System

    Precaution PRECAUTION NOTICE: If the battery is connected, the parking brake will operate when the electric parking brake switch assembly is pulled to the lock side even if the ignitio

    SEE MORE:

     Registration

    REGISTRATION PROCEDURE 1. REPAIR INSTRUCTION NOTICE: PRECAUTION WHEN REPLACING PARTS Code registration is necessary when any of the following parts is replaced with a new one. After replacing a part, any part that has performed registration cannot be returned. Transponder key ECU assemb

     Precaution

    PRECAUTION CAUTION: Failure to carry out service procedures in the correct sequence could cause SRS parts to unexpectedly deploy and possibly lead to serious injuries. Furthermore, if a mistake is made when servicing SRS parts, they may fail to operate when required. Before performing servicin

    © 2020-2026 Copyright www.tcorollacross.com PT NL