PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (w/ Vacuum Brake Booster): C060B12; Left Electric Parking Brake Actuator Control Circuit Short to Battery; 2020 - 2021 MY RAV4 RAV4 HV [10/2019

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM100000001MQLQ
Model Year Start: 2020	Model: RAV4	Prod Date Range: [10/2019 - 12/2021]
Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (w/ Vacuum Brake Booster): C060B12; Left Electric Parking Brake Actuator Control Circuit Short to Battery; 2020 - 2021 MY RAV4 RAV4 HV [10/2019 - 12/2021]

DTC

C060B12

Left Electric Parking Brake Actuator Control Circuit Short to Battery

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Memory	Note
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.

Click here

NOTICE:

The electric parking brake may still operate up to 20 seconds after the ignition switch is turned off. Before disconnecting connectors or fuses, turn the ignition switch off and wait 20 seconds or more.
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.
Click here
When replacing the skid control ECU (brake actuator assembly), operate the electric parking brake switch (integration control and panel assembly) as the parking brake indicator light blinks when the ignition switch is first turned to ON.

1.	CHECK FOR SHORT TO +B

(a) Turn the ignition switch off.

(b) Make sure the No. 2 parking brake wire assembly is securely installed.

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
N57-2 (LE+) - N57-1 (LE-)	Electric parking brake not operating	Below 1 V

*a	Front view of No. 2 Parking Brake Wire Assembly (to Parking Brake Actuator Assembly LH)

2.	CHECK FOR SHORT TO +B

(a) Disconnect the NN6 No. 2 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
NN6-1 - NN6-2	Electric parking brake not operating	Below 1 V

*a	Front view of wire harness connector (to No. 2 Parking Brake Wire Assembly)

REPLACE NO. 2 PARKING BRAKE WIRE ASSEMBLY

3.	CHECK FOR SHORT TO +B

(a) Disconnect the NN6 No. 2 parking brake wire assembly connector.

(b) Disconnect the A39 skid control ECU (brake actuator assembly) connector.

*a	Front view of wire harness connector	*b	(to Skid Control ECU (Brake Actuator Assembly))
*c	(to No. 2 Parking Brake Wire Assembly)	-	-

Standard Voltage:

Tester Connection	Condition	Specified Condition
NN6-1 or A39-13 (MRL+) - Body ground	Always	Below 1 V
NN6-2 or A39-12 (MRL-) - Body ground	Always	Below 1 V

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR