Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001XOGC
Model Year Start: 2022 Model: Avalon Prod Date Range: [08/2021 -           ]
Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for Gasoline Model): Electric Parking Brake System AUTO Function Circuit; 2022 MY Avalon [08/2021 -        ]

Electric Parking Brake System AUTO Function Circuit

DESCRIPTION

The skid control ECU (brake actuator assembly) receives shift position signals from the ECM 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 engine 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 engine switch is ON, 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

1.

CHECK DTC (SFI SYSTEM)

(a) Check for DTCs.

Powertrain > Engine > 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 SFI SYSTEM

for A25A-FKS: Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

for 2GR-FKS: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING