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

PARKING BRAKE  ELECTRIC PARKING BRAKE SYSTEM(for HV Model)  C061012  Right Electric Parking Brake Actuator Control Circuit Short to Battery  


DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
C061012 Right 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 RH internal circuit (short to +B).

·

Detection Time:

Approximately 0.015 to 0.195 seconds (depending on each malfunction)


·

Parking brake actuator assembly RH

·

No. 1 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.

PROCEDURE

1.CHECK FOR SHORT TO +B
a.

Turn the power switch off.


b.

Make sure the No. 1 parking brake wire assembly is securely installed.


c.

Disconnect the o1 parking brake actuator assembly RH connector.


d.
C494132
1.479,0.313 1.896,0.563 0.417,0.25 1.01,2.667 1.458,1.958 true 2.458,2.656 1.958,1.969 true 0.25,0.229 0.563,0.427 0.313,0.198 10 false *a 1.604,0.344 1.917,0.542 0.313,0.198 10 false o1 0.969,2.646 1.135,2.865 0.167,0.219 10 false - 2.448,2.667 2.688,2.885 0.24,0.219 10 false +
*a Front view of No. 1 Parking Brake Wire Assembly
(to Parking Brake Actuator Assembly RH)


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

Standard Voltage:
Tester Connection Condition Specified Condition
o1-2 (+) - o1-1 (-) Electric parking brake not operating Below 1 V



Result:
Proceed to
OK
NG



OK

REPLACE PARKING BRAKE ACTUATOR ASSEMBLY RH

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 oO3 No. 1 parking brake wire assembly connector.


b.
C400970C06
1.479,0.375 1.938,0.708 0.458,0.333 0.208,0.281 0.51,0.51 0.302,0.229 10 false *a 1.594,0.458 2.01,0.75 0.417,0.292 10 false oO3
*a Front view of wire harness connector
(to No. 1 Parking Brake Wire Assembly)


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

Standard Voltage:
Tester Connection Condition Specified Condition
oO3-1 - oO3-2 Electric parking brake not operating Below 1 V



Result:
Proceed to
OK
NG



OK

REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY

NG

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

Disconnect the oO3 No. 1 parking brake wire assembly connector.


b.

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


c.

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

C400976
5.125,0.417 5.542,0.667 0.417,0.25 1.677,0.604 2.104,0.854 0.427,0.25 1.844,2.146 1.344,1.646 true 0.625,2.167 1.125,1.667 true 5.208,0.469 5.667,0.667 0.458,0.198 10 false oO3 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 1.74,2.177 2.24,2.427 0.5,0.25 10 false MRR- 0.406,2.198 0.906,2.448 0.5,0.25 10 false MRR+ 1.729,0.635 2.188,0.833 0.458,0.198 10 false A144
*a Front view of wire harness connector *b (to Skid Control ECU (Brake Actuator Assembly))
*c (to No. 1 Parking Brake Wire Assembly) - -


Standard Voltage:
Tester Connection Condition Specified Condition
oO3-1 or A144-2 (MRR+) - Body ground Always Below 1 V
oO3-2 or A144-3 (MRR-) - 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 HV Model)>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR