Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Left Electric Parking Brake Actuator Control Circuit Short to Battery (C060B12)

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Brake / Parking Brake / Electric Parking Brake System / Left Electric Parking Brake Actuator Control Circuit Short to Battery (C060B12)

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 1 second
  • 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.

WIRING DIAGRAM

Click here

CAUTION / NOTICE / HINT

NOTICE:

  • The electric parking brake may still operate up to 20 seconds after the engine switch is turned off. Before disconnecting connectors or fuses, turn the engine switch off and wait 20 seconds or more.
  • After replacing the skid control ECU (brake actuator assembly), perform "Calibration".

    Click here

  • When replacing the skid control ECU (brake actuator assembly), operate the electric parking brake switch (electric parking brake switch assembly) as the parking brake indicator light blinks (red) when the engine switch is first turned on (IG).

PROCEDURE

1.

CHECK FOR SHORT TO +B

(a) Turn the engine switch off.

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

(c) Disconnect the o2 parking brake actuator assembly LH connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

o2-2 (MRL+) - o2-1 (MRL-)

Electric parking brake not operating

Below 1 V

*a

Front view of No. 2 Parking Brake Wire Assembly

(to Parking Brake Actuator Assembly LH)
OK

REPLACE PARKING BRAKE ACTUATOR ASSEMBLY LH

NG

2.

CHECK FOR SHORT TO +B

(a) Disconnect the oS1 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

oS1-1 - oS1-2

Electric parking brake not operating

Below 1 V

*a

Front view of wire harness connector

(to No. 2 Parking Brake Wire Assembly)
OK

REPLACE NO. 2 PARKING BRAKE WIRE ASSEMBLY
NG

3.

CHECK FOR SHORT TO +B

(a) Disconnect the oS1 No. 2 parking brake wire assembly connector.

(b) Disconnect the A41 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. 2 Parking Brake Wire Assembly)

-

-

Standard Voltage:

Tester Connection

Condition

Specified Condition

oS1-1 or A41-3 (MRL+) - Body ground

Always

Below 1 V

oS1-2 or A41-2 (MRL-) - Body ground

Always

Below 1 V
OK

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
    Left Electric Parking Brake Actuator Control Circuit Short to Ground (C060B11)
    DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C060B11 Left Electric Parking Brake Actuator Control Circuit Short to Ground Diagnosis Condi ...

    Left Electric Parking Brake Actuator Control Circuit Open (C060B13)
    DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C060B13 Left Electric Parking Brake Actuator Control Circuit Open Diagnosis Condition: Elect ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Audio And Visual System (for 8 Inch Display): Operation Check
    OPERATION CHECK REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) SELF CHECK NOTICE: Before entering self-diagnostic mode, make sure there are no obstructions which may interfere with operation of the remote touch screen, and that the remote touch screen is not dirty. Do not touch the remote ...

    Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Quarter Window Glass (w/o Rear No. 2 Seat): Installation
    INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. INSTALL QUARTER WINDOW ASSEMBLY (a) Using a brush, coat the installation surfaces on the vehicle body with primer M. NOTICE: Do not coat ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2024 Copyright www.lexusrx.net
    0.0238