Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001XOG5
Model Year Start: 2022 Model: Avalon Prod Date Range: [08/2021 -           ]
Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for Gasoline Model): C061012; Right Electric Parking Brake Actuator Control Circuit Short to Battery; 2022 MY Avalon [08/2021 -        ]

DTC

C061012

Right Electric Parking Brake Actuator Control Circuit Short to Battery

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

Note

C061012

Right Electric Parking Brake Actuator Control Circuit Short to Battery
  • Diagnosis Condition:

    Electric parking brake not operating

  • Malfunction Status:

    The ECU power supply is normal but there is a malfunction in the electric parking brake actuator RH internal circuit (short to +B).

  • Detection Time:

    Approximately 0.015 to 0.195 seconds (depending on each malfunction)
  • Parking brake actuator assembly RH
  • No. 1 parking brake wire assembly
  • Wire harness or connector
  • Skid control ECU (brake actuator assembly)

DTC stored

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

WIRING DIAGRAM

Click here 2022 MY Avalon [08/2021 -        ]; PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for Gasoline Model): C061000,C061011; Right Electric Parking Brake Actuator Control

PROCEDURE

1.

CHECK FOR SHORT TO +B

(a) Turn the engine switch off.

(b) Make sure the No. 1 parking brake wire assembly is securely installed.

(c) Disconnect the Y4 parking brake actuator assembly RH connector.

(d) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

Y4-2 (RE+) - Y4-1 (RE-)

Electric parking brake not operating

Below 1 V

*a

Front view of No. 1 Parking Brake Wire Assembly

(to Parking Brake Actuator Assembly RH)
OK

REPLACE PARKING BRAKE ACTUATOR ASSEMBLY RH

NG

2.

CHECK FOR SHORT TO +B

(a) Disconnect the YK1 No. 1 parking brake wire assembly connector.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

YK1-2 - YK1-1

Electric parking brake not operating

Below 1 V

*a

Front view of wire harness connector

(to No. 1 Parking Brake Wire Assembly)
OK

REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY
NG

3.

CHECK FOR SHORT TO +B

(a) Disconnect the YK1 No. 1 parking brake wire assembly connector.

(b) Disconnect the A28 skid control ECU (brake actuator assembly) connector.

(c) Measure the voltage according to the value(s) in the table below.

*a

Front view of wire harness connector

*b

(to Skid Control ECU (Brake Actuator Assembly))

*c

(to No. 1 Parking Brake Wire Assembly)

-

-

Standard Voltage:

Tester Connection

Condition

Specified Condition

YK1-2 or A28-2 (MRR+) - Body ground

Always

Below 1 V

YK1-1 or A28-3 (MRR-) - Body ground

Always

Below 1 V
OK

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR