Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001H419
Model Year Start: 2019 Model: RAV4 Prod Date Range: [02/2019 - 12/2021]
Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (w/o Vacuum Brake Booster): C13A9; Brake System Malfunction; 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]

DTC

C13A9

Brake System Malfunction

DESCRIPTION

The parking brake ECU assembly receives the wheel speed information of each wheel from the skid control ECU (brake booster with master cylinder assembly) via CAN communication.

This DTC is stored when a malfunction occurs in the skid control ECU (brake booster with master cylinder assembly).

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

Note

C13A9

Brake System Malfunction

One of the following conditions is met:

  1. When the ignition switch is ON, all speed sensor malfunction signals input from the skid control ECU (brake booster with master cylinder assembly) continue for approximately 0.3 seconds or more.
  2. When the ignition switch is ON, brake system malfunction signal input from the skid control ECU (brake booster with master cylinder assembly) continues for approximately 0.3 seconds or more.
  3. When the parking brake is not operating while driving and the ignition switch is ON, an operating signal is input from the skid control ECU (brake booster with master cylinder assembly) for approximately 0.3 seconds or more when the parking brake ECU assembly is not outputting an operation request signal.
  • Skid control ECU (brake booster with master cylinder assembly)
  • Parking brake ECU assembly

Yes

An electric parking brake system malfunction is displayed on the multi-information display.

DTC Detection Condition Combination Table: C13A9

 

Vehicle Condition

Pattern 1

Pattern 2

Pattern 3

Diagnosis Condition

Ignition switch ON

-

When the parking brake is not operating while driving and the ignition switch is ON

-

-

Malfunction Status

All speed sensor malfunction signals input from the skid control ECU (brake booster with master cylinder assembly)

-

-

Brake system malfunction signal input from the skid control ECU (brake booster with master cylinder assembly)

-

-

An operating signal is input from the skid control ECU (brake booster with master cylinder assembly) when the parking brake ECU assembly is not outputting an operation request signal

-

-

Detection Time

Approximately 0.3 seconds

Approximately 0.3 seconds

Approximately 0.3 seconds

Trip Count

1 trip

1 trip

1 trip

HINT:

If the conditions match either of these patterns, a DTC will be output.

CAUTION / NOTICE / HINT

NOTICE:

When replacing the parking brake ECU assembly, operate the electric parking brake switch (integration control and panel assembly) from the lock side to the release side, as the parking brake indicator light blinks when the ignition switch is first turned to ON.

PROCEDURE

1.

CHECK DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster))

(a) Check for DTC.

Click here 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): DTC CHECK / CLEAR

Chassis > ABS/VSC/TRAC > Trouble Codes

DTC is output

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster) 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): DIAGNOSTIC TROUBLE CODE CHART 2020 MY RAV4 RAV4 HV [10/2019 - 06/2020]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): DIAGNOSTIC TROUBLE CODE CHART 2020 MY RAV4 RAV4 HV [06/2020 - 08/2020]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): DIAGNOSTIC TROUBLE CODE CHART 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): DIAGNOSTIC TROUBLE CODE CHART

DTC is not output

2.

CHECK DTC (ELECTRIC PARKING BRAKE SYSTEM (w/o Vacuum Brake Booster))

(a) Clear the DTCs.

Click here 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]; PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (w/o Vacuum Brake Booster): DTC CHECK / CLEAR

Chassis > Electric Parking Brake > Clear DTCs

(b) Turn the ignition switch off.

(c) Check for DTC.

Click here 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]; PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (w/o Vacuum Brake Booster): DTC CHECK / CLEAR

Chassis > Electric Parking Brake > Trouble Codes

DTC is output

REPLACE PARKING BRAKE ECU ASSEMBLY 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; PARKING BRAKE: ELECTRIC PARKING BRAKE ECU: REMOVAL 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; PARKING BRAKE: ELECTRIC PARKING BRAKE ECU: REMOVAL 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; PARKING BRAKE: ELECTRIC PARKING BRAKE ECU: REMOVAL

DTC is not output

USE SIMULATION METHOD TO CHECK