RM35X0E _54 Brake _078667 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0385049 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch)  P057111  Brake Switch "A" Circuit Short to Ground  


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.

When the brake pedal is depressed and no signal is received from the stop light switch assembly, this DTC is output.

DTC No. Detection Item DTC Detection Condition Trouble Area
P057111 Brake Switch "A" Circuit Short to Ground Either of the following is detected when the vehicle speed of 3 km/h (2 mph) or more:
1.

With the stop light switch assembly off, the stop light switch assembly is judged to be on based on the master cylinder pressure value for 3 seconds or more.

2.

With the stop light switch assembly off, the master cylinder pressure is more than 8 MPa (81.6 kgf/cm2, 1160 psi) for 3 seconds or more.


·

Stop light switch assembly

·

Wire harness or connector

·

Skid control ECU (brake actuator assembly)



DTC Detection Conditions: C057111
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition The stop light switch assembly off and vehicle speed of 3 km/h (2 mph) or more. ○ ○
Malfunction Status The stop light switch assembly is judged to be on based on the master cylinder pressure value. ○ -
The master cylinder pressure is more than 8 MPa (81.6 kgf/cm2, 1160 psi). - ○
Detection Time 3 seconds or more. 3 seconds or more.
Number of Trips 1 trip 1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.


WIRING DIAGRAM

C413716E03
4.938,1.26 7.083,1.615 2.146,0.354 10 false Shift Lock Control ECU (Shift Lock Control Unit Assembly)*3 4.927,1.104 5.385,1.302 0.458,0.198 10 false N57 1.781,1.219 2.781,1.396 1,0.177 10 false A2*1, N1*2 2.667,1.219 3.125,1.417 0.458,0.198 10 false ECM 5.615,0.813 6.073,1.01 0.458,0.198 10 false STP 3.073,0.813 3.531,1.01 0.458,0.198 10 false STP 5.573,2.615 6.031,2.813 0.458,0.198 10 false STP 5.583,3.344 6.042,3.542 0.458,0.198 10 false STP2 5.573,4.01 6.031,4.208 0.458,0.198 10 false STPO 0.875,3 1.333,3.198 0.458,0.198 10 false M1 0.875,3.156 2.667,3.417 1.792,0.26 10 false Stop Light Switch Assembly 2.615,4.531 4.375,4.729 1.76,0.198 10 false STOP LP (Stop Light Relay) 5.198,4.698 5.656,4.896 0.458,0.198 10 false A28 5.188,4.854 6.75,5.26 1.563,0.406 10 false Skid Control ECU (Brake Actuator Assembly) 2.5,5.063 3.573,5.26 1.073,0.198 10 false from IG Circuit 1.76,5.667 2.833,5.865 1.073,0.198 10 false from Battery 1.323,5.26 2.396,5.458 1.073,0.198 10 false IG2 NO. 1 0.177,6.677 1.375,6.875 1.198,0.198 10 false *1: for 1GD-FTV 5.198,5.781 5.542,5.979 0.344,0.198 10 false STP 5.344,2.635 5.656,2.833 0.313,0.198 10 false 9 5.302,3.354 5.615,3.552 0.313,0.198 10 false 24 5.365,4 5.677,4.198 0.313,0.198 10 false 3 3.917,3.323 4.229,3.521 0.313,0.198 10 false 3 3.417,3 3.729,3.198 0.313,0.198 10 false 4 3.927,3.99 4.24,4.188 0.313,0.198 10 false 1 2.75,3.333 3.063,3.531 0.313,0.198 10 false 5 2.75,3.979 3.063,4.177 0.313,0.198 10 false 2 2.365,2.646 2.677,2.844 0.313,0.198 10 false 1 1.031,2.646 1.344,2.844 0.313,0.198 10 false 2 3.49,0.656 4.281,0.865 0.792,0.208 10 false 13*1, 16*2 5.375,0.677 5.688,0.875 0.313,0.198 10 false 8 5.208,6.917 5.552,7.115 0.344,0.198 10 false STP 5.875,5.781 6.219,5.979 0.344,0.198 10 false E 5.885,6.927 6.229,7.125 0.344,0.198 10 false E 3.115,6.917 3.458,7.115 0.344,0.198 10 false E 3.802,6.938 4.146,7.135 0.344,0.198 10 false B 2.875,6.813 3.188,7.01 0.313,0.198 10 false 2 4.042,6.792 4.354,6.99 0.313,0.198 10 false 1 5.01,5.625 5.323,5.823 0.313,0.198 10 false 3 4.99,6.802 5.302,7 0.313,0.198 10 false 3 6.135,5.625 6.448,5.823 0.313,0.198 10 false 6 5.042,6.104 6.542,6.448 1.5,0.344 10 false Rear Combination Light Assembly LH 4.792,6.094 5.25,6.292 0.458,0.198 10 false e1 5.083,7.219 6.583,7.563 1.5,0.344 10 false Rear Combination Light Assembly RH 4.76,7.219 5.219,7.417 0.458,0.198 11 false g1 2.75,7.344 4.583,7.542 1.833,0.198 10 false Center Stop Light Assembly 2.76,7.177 3.219,7.375 0.458,0.198 10 false k1 0.844,5.906 1.917,6.104 1.073,0.198 10 false STOP 0.188,6.969 1.396,7.177 1.208,0.208 10 false *2: for 7GR-FKS 2.135,2.635 2.448,2.833 0.313,0.198 10 false L 1.271,2.625 1.583,2.823 0.313,0.198 10 false B 6.125,6.813 6.438,7.01 0.313,0.198 10 false 6 0.198,7.292 2.135,7.5 1.938,0.208 10 false *3: for Automatic Transmission 0.094,0.063 4.823,0.313 4.729,0.25 12 false w/ Rear Combination Light (for Bulb Type) (w/ STOP LP Relay):

C419577E01
4.938,1.26 7.083,1.615 2.146,0.354 10 false Shift Lock Control ECU (Shift Lock Control Unit Assembly)*3 4.927,1.104 5.385,1.302 0.458,0.198 10 false N57 2.385,1.219 3.385,1.396 1,0.177 10 false A2*1, N1*2 2.375,1.396 2.833,1.594 0.458,0.198 10 false ECM 5.615,0.813 6.073,1.01 0.458,0.198 10 false STP 3.073,0.813 3.531,1.01 0.458,0.198 10 false STP 5.573,2.615 6.031,2.813 0.458,0.198 10 false STP 1.771,3.188 2.229,3.385 0.458,0.198 10 false M1 1.74,3.323 3.531,3.583 1.792,0.26 10 false Stop Light Switch Assembly 5.26,4.771 5.719,4.969 0.458,0.198 10 false A28 5.208,4.938 6.771,5.344 1.563,0.406 10 false Skid Control ECU (Brake Actuator Assembly) 1.896,4.292 2.969,4.49 1.073,0.198 10 false from Battery 0.188,1.271 1.385,1.469 1.198,0.198 10 false *1: for 1GD-FTV 3.146,5.573 3.49,5.771 0.344,0.198 10 false STP 5.344,2.635 5.656,2.833 0.313,0.198 10 false 9 3.177,2.594 3.49,2.792 0.313,0.198 10 false 1 1.813,2.635 2.125,2.833 0.313,0.198 10 false 2 3.49,0.656 4.281,0.865 0.792,0.208 10 false 13*1, 16*2 5.375,0.677 5.688,0.875 0.313,0.198 10 false 8 3.167,6.719 3.51,6.917 0.344,0.198 10 false STP 2.604,5.563 2.948,5.76 0.344,0.198 10 false E 6.052,6.708 6.396,6.906 0.344,0.198 10 false E 2.615,6.708 2.958,6.906 0.344,0.198 10 false E 5.333,6.708 5.677,6.906 0.344,0.198 10 false B 6.344,6.625 6.656,6.823 0.313,0.198 10 false 2 5.063,6.583 5.375,6.781 0.313,0.198 10 false 1 3.542,5.458 3.854,5.656 0.313,0.198 10 false 3 3.573,6.604 3.885,6.802 0.313,0.198 10 false 3 2.396,5.448 2.708,5.646 0.313,0.198 10 false 6 1.99,5.948 4.333,6.146 2.344,0.198 10 false Rear Combination Light Assembly LH 2.021,5.75 2.479,5.948 0.458,0.198 10 false e1 1.948,7.063 4.323,7.26 2.375,0.198 10 false Rear Combination Light Assembly RH 1.958,6.865 2.417,7.063 0.458,0.198 11 false g1 4.875,7.052 6.708,7.25 1.833,0.198 10 false Center Stop Light Assembly 4.896,6.854 5.354,7.052 0.458,0.198 10 false k1 0.979,4.49 2.052,4.688 1.073,0.198 10 false STOP 0.177,1.615 1.385,1.823 1.208,0.208 10 false *2: for 7GR-FKS 2.969,2.646 3.281,2.844 0.313,0.198 10 false L 2.094,2.625 2.406,2.823 0.313,0.198 10 false B 2.375,6.615 2.688,6.813 0.313,0.198 10 false 6 0.156,2 2.094,2.208 1.938,0.208 10 false *3: for Automatic Transmission 0.042,0.073 4.917,0.333 4.875,0.26 12 false w/ Rear Combination Light (for Bulb Type) (w/o STOP LP Relay):

C418259E02
0.094,0.042 3.146,0.417 3.052,0.375 12 false w/ Rear Combination Light (for LED Type) (w/ Pre-collision System): 5.01,0.167 5.75,0.385 0.74,0.219 10 false 13*1, 16*2 5.698,0.656 6.438,0.875 0.74,0.219 10 false A2*1, N1*2 5.708,0.802 6.448,1.021 0.74,0.219 10 false ECM 5.531,1.188 5.74,1.396 0.208,0.208 10 false 25 5.813,0.26 6.552,0.479 0.74,0.219 10 false STP 5.792,1.292 6.531,1.51 0.74,0.219 10 false STP1 2.938,1.302 3.677,1.521 0.74,0.219 10 false STP 3.333,1.198 3.542,1.406 0.208,0.208 10 false 4 1.563,2.99 1.771,3.198 0.208,0.208 10 false 7 1.781,3 1.99,3.208 0.208,0.208 10 false B 3.104,2.698 3.313,2.906 0.208,0.208 10 false L 3.375,2.677 3.583,2.885 0.208,0.208 10 false 3 2.948,3.531 3.573,3.792 0.625,0.26 10 false ACC 3.354,3.51 3.563,3.719 0.208,0.208 10 false 4 2.958,4.177 3.385,4.417 0.427,0.24 10 false OUT 3.354,4.156 3.563,4.365 0.208,0.208 10 false 1 1.552,4.167 1.76,4.375 0.208,0.208 10 false 2 1.76,4.177 2.208,4.385 0.448,0.208 10 false GND 5.594,2.688 5.802,2.896 0.208,0.208 10 false 9 5.51,4.146 5.771,4.396 0.26,0.25 10 false 24 5.563,3.49 5.771,3.698 0.208,0.208 10 false 3 5.771,2.688 6.156,2.927 0.385,0.24 10 false STP 5.771,4.156 6.208,4.354 0.438,0.198 10 false STP2 5.771,3.521 6.177,3.76 0.406,0.24 10 false STPO 0.74,2.01 1.583,2.271 0.844,0.26 10 false from Battery 1.677,1.573 2.104,1.781 0.427,0.208 10 false N161 1.677,1.75 4.281,2.104 2.604,0.354 10 false Shift Lock Control ECU (Shift Lock Control Unit Assembly) 5.323,1.5 6.063,1.719 0.74,0.219 10 false N155 5.333,1.656 7.115,2.031 1.781,0.375 10 false Certification ECU (smart Key ECU Assembly) 0.563,3.271 1.406,3.531 0.844,0.26 10 false STOP 1.781,4.76 2.229,4.969 0.448,0.208 10 false M2 1.771,4.896 3.698,5.135 1.927,0.24 10 false Stop Light Switch Assembly 1.677,5.302 2.125,5.51 0.448,0.208 10 false 1 1.667,5.604 2.115,5.813 0.448,0.208 10 false 4 1.302,5.406 1.75,5.615 0.448,0.208 10 false STP 1.479,5.698 1.927,5.906 0.448,0.208 10 false E 0.083,6.042 0.531,6.25 0.448,0.208 10 false e4 0.083,6.177 1.521,6.542 1.438,0.365 10 false Rear Combination Light Assembly LH 5.573,5.135 6.021,5.344 0.448,0.208 10 false A28 5.563,5.313 7.094,5.688 1.531,0.375 10 false Skid Control ECU (Brake Actuator Assembly) 3.469,6.219 3.917,6.427 0.448,0.208 10 false 1 1.677,7.365 2.125,7.573 0.448,0.208 10 false 1 1.688,7.667 2.135,7.875 0.448,0.208 10 false 2 3.458,6.49 3.906,6.698 0.448,0.208 10 false 4 3.094,6.313 3.542,6.521 0.448,0.208 10 false STP 3.24,6.583 3.688,6.792 0.448,0.208 10 false E 1.885,6.948 2.333,7.156 0.448,0.208 10 false g2 1.875,7.115 4.24,7.313 2.365,0.198 10 false Rear Combination Light Assembly RH 0.104,8.135 1.573,8.365 1.469,0.229 10 false k1*3, k4*4 0.104,8.281 1.948,8.542 1.844,0.26 10 false Center Stop Light Assembly 1.469,7.49 1.917,7.698 0.448,0.208 10 false B 1.479,7.781 1.927,7.99 0.448,0.208 10 false E 5.188,7.208 6.49,7.417 1.302,0.208 10 false *1: for 1GD-FTV 5.188,7.594 6.49,7.792 1.302,0.198 10 false *2: for 7GR-FKS 5.188,7.958 6.49,8.156 1.302,0.198 10 false *3: for 8LED 5.188,8.323 6.49,8.521 1.302,0.198 10 false *4: for 6LED

C419578E02
0.063,0.083 3.104,0.49 3.042,0.406 12 false w/ Rear Combination Light (for LED Type) (w/o Pre-collision System): 5.146,0.146 5.885,0.365 0.74,0.219 10 false 13*1, 16*2 5.927,0.646 6.667,0.865 0.74,0.219 10 false A2*1, N1*2 5.927,0.781 6.667,1 0.74,0.219 10 false ECM 5.604,1.177 5.813,1.385 0.208,0.208 10 false 25 5.896,0.24 6.635,0.458 0.74,0.219 10 false STP 5.875,1.292 6.615,1.51 0.74,0.219 10 false STP1 2.635,1.292 2.958,1.479 0.323,0.188 10 false STP 2.99,1.188 3.198,1.396 0.208,0.208 10 false 4 1.552,3.146 1.76,3.354 0.208,0.208 10 false 7 1.781,3.156 1.99,3.365 0.208,0.208 10 false B 2.969,4.146 3.396,4.385 0.427,0.24 10 false OUT 3.385,4.156 3.594,4.365 0.208,0.208 10 false 1 1.552,4.167 1.76,4.375 0.208,0.208 10 false 2 1.76,4.177 2.208,4.385 0.448,0.208 10 false GND 5.594,2.688 5.802,2.896 0.208,0.208 10 false 9 5.771,2.688 6.156,2.927 0.385,0.24 10 false STP 0.563,2.25 1.406,2.51 0.844,0.26 10 false from Battery 1.635,1.677 2.167,1.854 0.531,0.177 10 false N161 1.646,1.875 4.25,2.229 2.604,0.354 10 false Shift Lock Control ECU (Shift Lock Control Unit Assembly) 5.385,1.531 6.125,1.75 0.74,0.219 10 false N155 5.375,1.667 7.156,2.042 1.781,0.375 10 false Certification ECU (smart Key ECU Assembly) 0.667,3.438 1.51,3.698 0.844,0.26 10 false STOP 1.781,4.76 2.229,4.969 0.448,0.208 10 false M2 1.771,4.896 3.698,5.135 1.927,0.24 10 false Stop Light Switch Assembly 1.677,5.302 2.125,5.51 0.448,0.208 10 false 1 1.667,5.604 2.115,5.813 0.448,0.208 10 false 4 1.302,5.406 1.75,5.615 0.448,0.208 10 false STP 1.479,5.698 1.927,5.906 0.448,0.208 10 false E 0.083,6.042 0.531,6.25 0.448,0.208 10 false e4 0.083,6.177 1.521,6.542 1.438,0.365 10 false Rear Combination Light Assembly LH 5.573,5.135 6.021,5.344 0.448,0.208 10 false A28 5.563,5.313 7.094,5.688 1.531,0.375 10 false Skid Control ECU (Brake Actuator Assembly) 3.469,6.219 3.917,6.427 0.448,0.208 10 false 1 1.677,7.365 2.125,7.573 0.448,0.208 10 false 1 1.688,7.667 2.135,7.875 0.448,0.208 10 false 2 3.458,6.49 3.906,6.698 0.448,0.208 10 false 4 3.094,6.313 3.542,6.521 0.448,0.208 10 false STP 3.24,6.583 3.688,6.792 0.448,0.208 10 false E 1.885,6.948 2.333,7.156 0.448,0.208 10 false g2 1.875,7.115 4.24,7.313 2.365,0.198 10 false Rear Combination Light Assembly RH 0.104,8.135 1.396,8.333 1.292,0.198 10 false k1*3, k4*4 0.104,8.281 1.948,8.542 1.844,0.26 10 false Center Stop Light Assembly 1.448,7.49 1.896,7.698 0.448,0.208 10 false B 1.479,7.781 1.927,7.99 0.448,0.208 10 false E 4.948,7.021 6.385,7.219 1.438,0.198 10 false *1: for 1GD-FTV 4.948,7.479 6.083,7.667 1.135,0.188 10 false *2: for 7GR-FKS 4.948,8.354 6.083,8.542 1.135,0.188 10 false *4: for 6LED 4.948,7.948 6.083,8.135 1.135,0.188 10 false *3: for 8LED

CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

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 (w/ VSC OFF Switch)>UTILITY



PROCEDURE

1.READ VALUE USING GTS (MASTER CYLINDER SENSOR)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Enter the following menus: Chassis / Brake / Data List.

Chassis > Brake > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Master Cylinder Sensor 1 Master cylinder pressure sensor pressure (value detected by ECU) Min.: -1.00 MPa
Max.: 23.99 MPa 		Brake pedal released: -1.00 to 0.00 MPa Reading increases when brake pedal is depressed
Chassis > Brake > Data List
Tester Display
Master Cylinder Sensor 1
50003 435 21

d.

Check the value of Data List item Master Cylinder Sensor 1 when the brake pedal is released.

OK:

The value of Data List item Master Cylinder Sensor 1 when the brake pedal is released is less than 0.15 MPa.



Result:
Proceed to
OK
NG



OK

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

NG

4.CHECK DTC
2.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY SIGNAL INPUT CIRCUIT)
a.
C413719C03
0.281,0.531 0.729,0.792 0.448,0.26 2.167,2.458 2.031,1.917 true 0.177,0.188 0.49,0.385 0.313,0.198 10 false *a 0.365,0.573 0.771,0.76 0.406,0.188 10 false A28 2.135,2.531 2.448,2.729 0.313,0.198 10 false STP
*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 A28 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
A28-9 (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>REMOVAL


NG

3.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)
3.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)
a.

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 A28 skid control ECU (brake actuator assembly) connector.


c.

w/ Rear Combination Light (for Bulb Type):

Disconnect the M1 stop light switch assembly connector.


d.

w/ Rear Combination Light (for LED Type):

Disconnect the M2 stop light switch assembly connector.


e.

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

OK:

No deformation or corrosion.



f.

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

Standard Resistance:
w/ Rear Combination Light (for Bulb Type):
Tester Connection Condition Specified Condition
M1-1 (L) - A28-9 (STP) Always Below 1 Ω
M1-1 (L) or A28-9 (STP) - Body ground and other terminals Always 10 kΩ or higher

w/ Rear Combination Light (for LED Type):
Tester Connection Condition Specified Condition
M2-3 (L) - A28-9 (STP) Always Below 1 Ω
M2-3 (L) or A28-9 (STP) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE STOP LIGHT SWITCH ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Read the DTCs following the prompts on the GTS. Enter the following menus: Chassis / Brake / Trouble Codes.

Chassis > Brake > Trouble Codes
50001 435

d.

Check the details of the DTCs.


Result:
Result Proceed to
P057111 and C05401C, C054028 and/or C054049 are output simultaneously A
P057111 is output B



A

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ VSC OFF Switch)>DIAGNOSTIC TROUBLE CODE CHART


B

GO TO BRAKE SYSTEM

Refer to "Brake drag" of problem symptoms table.

Click hereBrake>BRAKE SYSTEM (OTHER)>BRAKE SYSTEM>PROBLEM SYMPTOMS TABLE