RM3660EC _54 Brake _080770 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0599814 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model (NR Series)) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model (NR Series))  P057113  Brake Switch "A" Circuit Open  


DESCRIPTION

The skid control ECU (brake actuator assembly) receives stop light switch assembly signals and uses them to determine whether or not the brakes are applied.

The skid control ECU (brake actuator assembly) has a detection circuit that it uses to detect an open in the stop light input line.

If the skid control ECU (brake actuator assembly) detects an open in this circuit, it will store this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area
P057113 Brake Switch "A" Circuit Open An open in the stop light switch assembly input line continues for 3 seconds or more.
·

Stop light switch assembly

·

Wire harness or connector

·

Skid control ECU (brake actuator assembly)



CAUTION / NOTICE / HINT

NOTICE:

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 (NR Series))>UTILITY


PROCEDURE

1.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY OUTPUT CIRCUIT)
a.
C401043C11
0.375,0.667 0.813,0.927 0.438,0.26 2.167,1.677 1.854,1.052 true 0.167,0.177 0.479,0.333 0.313,0.156 10 false *a 2.177,1.708 2.333,1.906 0.156,0.198 10 false L 0.49,0.729 0.979,1.063 0.49,0.333 10 false A53
*a Component with harness connected
(Stop Light Switch Assembly)


Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.



b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
A53-3 (L) - Body ground Brake pedal depressed 11 to 14 V
A53-3 (L) - Body ground Brake pedal released Below 1.5 V



Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY INPUT CIRCUIT)

NG

REPLACE STOP LIGHT SWITCH ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>STOP LIGHT SWITCH>REMOVAL


2.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY INPUT CIRCUIT)
a.
C402833C01
0.25,0.313 0.698,0.542 0.448,0.229 2.083,0.938 2.552,0.396 true 2.469,0.208 2.927,0.406 0.458,0.198 10 false STP 0.094,0.083 0.406,0.281 0.313,0.198 10 false *a 0.365,0.344 0.823,0.542 0.458,0.198 10 false A51
*a Front view of wire harness connector
(to Skid Control ECU (Brake Actuator Assembly))


Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.



b.

Disconnect the A51 skid control ECU (brake actuator assembly) connector.


c.

Check both the connector case and the terminals for deformation and corrosion.

OK:

No deformation or corrosion.



d.

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

Standard Voltage:
Tester Connection Condition Specified Condition
A51-41 (STP) - Body ground Brake pedal depressed 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE BRAKE ACTUATOR ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR