RM38N0EC _54 Brake _111814 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0503031 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model)  C004013  Brake Pedal Switch "A" Circuit Open  


DESCRIPTION

The brake pedal load sensing switch (brake pedal support assembly) turns on when the brake pedal is depressed with a force exceeding a predetermined level.

The skid control ECU (brake actuator assembly) uses this circuit to detect if the brake pedal is depressed or not.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
C004013 Brake Pedal Switch "A" Circuit Open An open or short in the brake pedal load sensing switch circuit continues for 0.5 seconds or more.
·

Brake pedal load sensing switch (brake pedal support assembly)

·

Wire harness and connector

·

Skid control ECU (brake actuator assembly)


Brake/EPB B

WIRING DIAGRAM

C403532E04
2.073,2.281 4.177,2.719 2.104,0.438 10 false Brake Pedal Load Sensing Switch (Brake Pedal Support Assembly) 5.417,3.083 7.01,3.458 1.594,0.375 10 false Skid Control ECU (Brake Actuator Assembly) 5.792,1.271 6.406,1.469 0.615,0.198 10 false FSW+ 2.177,1.24 2.333,1.438 0.156,0.198 10 false 1 4.146,1.271 4.302,1.469 0.156,0.198 10 false 2 2.063,2.104 2.521,2.302 0.458,0.198 10 false A84 5.427,2.927 5.885,3.125 0.458,0.198 10 false A40 5.521,1.271 5.833,1.469 0.313,0.198 10 false 10

PROCEDURE

1.CHECK DTC
a.

Check if the same DTC is output.

Chassis > Brake/EPB > Trouble Codes
50001 435
HINT:

When P057111, P057112, and/or P057113 is output together with C004013, inspect and repair the trouble areas indicated by P057111, P057112, and/or P057113 first.


Result:
Result Proceed to
C004013 and P057111 are output A
C004013 and P057112 are output B
C004013 and P057113 are output C
C004013 is output D




A

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

B

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

C

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

D

2.READ VALUE USING GTS (BRAKE PEDAL LOAD SENSING SW)
2.READ VALUE USING GTS (BRAKE PEDAL LOAD SENSING SW)
a.

Check the value of Data List item Brake Pedal Load Sensing SW when the brake pedal is released.

Chassis > Brake/EPB > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Brake Pedal Load Sensing SW Brake pedal load sensing switch (brake pedal support assembly) OFF / ON OFF: Brake pedal load sensing switch (brake pedal support assembly) OFF -
Chassis > Brake/EPB > Data List
Tester Display
Brake Pedal Load Sensing SW
50003 435 61
Result:
Result Proceed to
The value of Brake Pedal Load Sensing SW is OFF A
None of the above conditions are met B




A

3.READ VALUE USING GTS (BRAKE PEDAL LOAD SENSING SW)

B

6.INSPECT BRAKE PEDAL SUPPORT ASSEMBLY
3.READ VALUE USING GTS (BRAKE PEDAL LOAD SENSING SW)
a.

Check the value of Data List item Brake Pedal Load Sensing SW when the brake pedal is depressed.

Chassis > Brake/EPB > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Brake Pedal Load Sensing SW Brake pedal load sensing switch (brake pedal support assembly) OFF / ON ON: Brake pedal load sensing switch (brake pedal support assembly) ON -
Chassis > Brake/EPB > Data List
Tester Display
Brake Pedal Load Sensing SW
50003 435 61
Result:
Result Proceed to
The value of Brake Pedal Load Sensing SW is ON A
None of the above conditions are met B




A

4.CLEAR DTC

B

6.INSPECT BRAKE PEDAL SUPPORT ASSEMBLY
4.CLEAR DTC

Pre-procedure1

a.

None


Procedure1

b.

Clear the DTCs.

Chassis > Brake/EPB > Clear DTCs
50002 435
Result:
Proceed to
NEXT



Post-procedure1

c.

Turn the ignition switch off.



NEXT

5.RECONFIRM DTC
5.RECONFIRM DTC

Pre-procedure1

a.

Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.


Procedure1

b.

Check if the same DTC is output.

Chassis > Brake/EPB > Trouble Codes
50001 435
Result:
Result Proceed to
C004013 is not output A
C004013 is output B



Post-procedure1

c.

None



A

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


B

REPLACE BRAKE ACTUATOR ASSEMBLY

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


7.CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - BRAKE PEDAL SUPPORT ASSEMBLY)

Procedure1

a.

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

OK:

The connector is securely connected.



Pre-procedure1

b.

Disconnect the A84 brake pedal load sensing switch (brake pedal support assembly) connector.


c.

Disconnect the A40 skid control ECU (brake actuator assembly) connector.


Procedure2

d.

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

OK:

No deformation or corrosion.



Procedure3

e.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A40,A84)Location & Routing

Click Connector(A40)Engine Compartment>Engine Room Main Wire / Transmission Wire>Brake Actuator Assembly

Click Connector(A84)Instrument Panel>Engine Room Main Wire>Brake Pedal Support Assembly

A40-10 (FSW+) - A84-2 Always Below 1 Ω
A40-10 (FSW+) or A84-2 - Body ground Always 10 kΩ or higher
A84-1 - Body ground 1 minute or more after disconnecting the cable from the negative (-) battery terminal Below 1 Ω


Result:
Proceed to
OK
NG



Post-procedure1

f.

None



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