Toyota Corolla Cross: Left Electric Parking Brake Actuator Control Circuit Short to Battery (C060B12)

C060B12

Left 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 LH internal circuit (short to +B).

• Detection Time:

  Approximately 0.015 to 0.195 seconds (depending on each malfunction)

• Parking brake actuator assembly LH
• No. 2 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.

1.

CHECK FOR SHORT TO +B

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

Standard Voltage:

REPLACE PARKING BRAKE ACTUATOR ASSEMBLY LH

2.

CHECK FOR SHORT TO +B

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

Standard Voltage:

REPLACE NO. 2 PARKING BRAKE WIRE ASSEMBLY

3.

CHECK FOR SHORT TO +B

*a

Front view of wire harness connector

*b

(to Skid Control ECU (Brake Actuator Assembly))

*c

(to No. 2 Parking Brake Wire Assembly)

-

-

nO3-1 or A151-13 (MRL+) - Body ground

Always

Below 1 V

nO3-2 or A151-12 (MRL-) - Body ground

Always

Below 1 V

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR