ELECTRIC PARKING BRAKE SYSTEM Electric Parking Brake System AUTO Function Circuit

DESCRIPTION

The skid control ECU (brake actuator assembly) receives shift position information from the ECM via CAN communication.

The electric parking brake system AUTO function (shift-linked function) automatically releases the parking brake when the following conditions are met: 1) Power switch is on (IG), 2) brake pedal is depressed, and 3) shift lever is moved out of P. When the shift lever is moved to P with these conditions met, the function automatically locks the parking brake.

The electric parking brake system AUTO (shift-linked function) automatically engages the parking brake when the shift lever is moved to P and disengages the parking brake when the shift lever is moved out of P when the power switch is on (IG) and the brake pedal is depressed.

WIRING DIAGRAM

B0071QEE02
*1 - Shift Position Signal
*2 Skid Control ECU (Brake Actuator Assembly)
*3 CAN Communication Line

CAUTION / NOTICE / HINT

Note


  • The electric parking brake may still operate up to 20 seconds after the power switch is turned off. Before disconnecting connectors or fuses, turn the power switch off and wait 20 seconds or more.

  • 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 power switch is first turned on (IG).

PROCEDURE


  1. CHECK DTC (SFI SYSTEM)


    1. Check for DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC is not output A
      DTC is output B

    A

    REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) for LHD: Click here
    REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) for RHD: Click here

    B

    GO TO SFI SYSTEM for 2AR-FE: Click here
    GO TO SFI SYSTEM for A25A-FKS: Click here
    GO TO SFI SYSTEM for 2GR-FKS: Click here