RM36D0EC _54 Brake _083081 PARKING BRAKE _0401025 ELECTRIC PARKING BRAKE SYSTEM(for Gasoline Model) C

PARKING BRAKE  ELECTRIC PARKING BRAKE SYSTEM(for Gasoline Model)  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.

CAUTION / NOTICE / HINT

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 hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>UTILITY

·

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.



PROCEDURE

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.


c.

Disconnect the N57 parking brake actuator assembly LH connector.


d.
C401220C25
1.448,0.313 1.865,0.563 0.417,0.25 1,2.75 1.417,2 true 2.417,2.75 2,2 true 0.25,0.229 0.563,0.427 0.313,0.198 10 false *a 1.542,0.365 1.938,0.635 0.396,0.271 10 false N57 0.771,2.781 1.271,2.948 0.5,0.167 10 false MRL- 2.354,2.781 2.854,2.958 0.5,0.177 10 false MRL+
*a Front view of No. 2 Parking Brake Wire Assembly
(to Parking Brake Actuator Assembly LH)


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

Standard Voltage:
Tester Connection Condition Specified Condition
N57-2 (MRL+) - N57-1 (MRL-) Electric parking brake not operating Below 1 V



Result:
Proceed to
OK
NG



OK

REPLACE PARKING BRAKE ACTUATOR ASSEMBLY LH

Click hereBrake>PARKING BRAKE>ELECTRIC PARKING BRAKE ACTUATOR>REMOVAL


NG

2.CHECK FOR SHORT TO +B
2.CHECK FOR SHORT TO +B
a.

Disconnect the NN6 No. 2 parking brake wire assembly connector.


b.
C395608C05
1.5,0.458 1.917,0.708 0.417,0.25 0.25,0.25 0.51,0.51 0.26,0.26 10 false *a 1.573,0.51 1.958,0.74 0.385,0.229 10 false NN6
*a Front view of wire harness connector
(to No. 2 Parking Brake Wire Assembly)


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



Result:
Proceed to
OK
NG



OK

REPLACE NO. 2 PARKING BRAKE WIRE ASSEMBLY

NG

3.CHECK FOR SHORT TO +B
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.


c.

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

C395607C08
1.667,0.417 2.083,0.667 0.417,0.25 5.125,0.417 5.542,0.667 0.417,0.25 3.104,2.177 2.604,1.677 true 1.896,2.177 2.396,1.677 true 1.76,0.469 2.219,0.667 0.458,0.198 10 false A39 5.208,0.469 5.667,0.667 0.458,0.198 10 false NN6 0.5,0.75 0.958,1.031 0.458,0.281 10 false *b 0.167,0.167 0.583,0.417 0.417,0.25 10 false *a 4.583,0.75 5.125,0.948 0.542,0.198 10 false *c 1.75,2.229 2.25,2.479 0.5,0.25 10 false MRL- 3,2.229 3.5,2.479 0.5,0.25 10 false MRL+
*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



Result:
Proceed to
OK
NG



OK

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR