RM3660EC _54 Brake _080740 PARKING BRAKE _0394663 ELECTRIC PARKING BRAKE SYSTEM(for HV Model) C

PARKING BRAKE  ELECTRIC PARKING BRAKE SYSTEM(for HV Model)  C060913  Electric Parking Brake Switch Circuit Open  


DESCRIPTION

When the electric parking brake switch is pulled, a lock request signal is sent from the skid control ECU (brake actuator assembly) to the parking brake actuator assembly. When the electric parking brake switch is pushed, a release request signal is sent from the skid control ECU (brake actuator assembly) to the parking brake actuator assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
C060913 Electric Parking Brake Switch Circuit Open Open detected in parking brake switch circuit for 1 second or more
·

Wire harness and connector

·

Skid control ECU (brake actuator assembly)


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

WIRING DIAGRAM

C506856E09
1.333,3.167 4.208,3.74 2.875,0.573 10 false Electric Parking Brake Switch Assembly 5.167,3.667 6.885,4.313 1.719,0.646 10 false Skid Control ECU (Brake Actuator Assembly) 5.167,3.5 5.604,3.688 0.438,0.188 10 false A144 1.333,3 1.833,3.25 0.5,0.25 10 false I183 3.333,1.25 3.771,1.438 0.438,0.188 10 false SWI1 3.26,1.563 3.792,1.75 0.531,0.188 10 false SWO1 3.323,1.865 3.76,2.052 0.438,0.188 10 false SWI2 3.25,2.427 3.781,2.615 0.531,0.188 10 false SWO2 5.469,1.365 5.906,1.552 0.438,0.188 10 false SWI1 5.458,1.646 5.938,1.833 0.479,0.188 10 false SWO1 5.458,1.969 5.896,2.156 0.438,0.188 10 false SWI2 5.469,2.563 5.979,2.75 0.51,0.188 10 false SWO2 3.781,1.25 3.969,1.448 0.188,0.198 10 false 7 3.792,1.552 4.052,1.75 0.26,0.198 10 false 8 5.188,1.563 5.375,1.76 0.188,0.198 10 false 32 3.792,1.865 3.979,2.063 0.188,0.198 10 false 1 3.813,2.438 4,2.635 0.188,0.198 10 false 2 5.188,1.26 5.375,1.458 0.188,0.198 10 false 31 5.188,1.865 5.375,2.063 0.188,0.198 10 false 15 5.177,2.458 5.365,2.656 0.188,0.198 10 false 16

PROCEDURE

1.CHECK DTC
a.

Check for DTCs.

Chassis > Brake/EPB > Trouble Codes
50001 435

Result:
Result Proceed to
Only C060913 is output A
C060913 and C060962 are output B



A

2.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) - ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)

B

GO TO DTC C060962

Click hereBrake>PARKING BRAKE>ELECTRIC PARKING BRAKE SYSTEM (for HV Model)>C060962


2.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) - ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)
a.

Disconnect the I183 electric parking brake switch (electric parking brake switch assembly) connector.


b.

Disconnect the A144 skid control ECU (brake actuator assembly) connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A144-31 (SWI1) - I183-7 (SWI1) Always Below 1 Ω
A144-32 (SWO1) - I183-8 (SWO1) Always Below 1 Ω
A144-15 (SWI2) - I183-1 (SWI2) Always Below 1 Ω
A144-16 (SWO2) - I183-2 (SWO2) Always Below 1 Ω
A144-31 (SWI1) or I183-7 (SWI1) - Body ground Always 10 kΩ or higher
A144-32 (SWO1) or I183-8 (SWO1) - Body ground Always 10 kΩ or higher
A144-15 (SWI2) or I183-1 (SWI2) - Body ground Always 10 kΩ or higher
A144-16 (SWO2) or I183-2 (SWO2) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR