RM36D0EC _54 Brake _083077 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0402316 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model) J

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model)  VSC OFF Switch Circuit  


DESCRIPTION

The skid control ECU (brake actuator assembly) is connected to the combination meter assembly via CAN communication.

Pressing the VSC OFF switch turns off TRC operation, and pressing and holding this switch turns off TRC and VSC operation. If TRC and VSC operations are turned off, "TRC OFF message" will be displayed on the multi-information display and the VSC OFF indicator light will come on.

WIRING DIAGRAM

Except 12.3 Inch TFT Display Type:
C397530E13
0.906,0.927 1.521,1.125 0.615,0.198 10 false CANL 0.896,1.74 1.51,1.938 0.615,0.198 10 false CANH 0.104,3.917 0.719,4.115 0.615,0.198 10 false G18 0.104,4.094 2.031,4.375 1.927,0.281 10 false Combination Meter Assembly 1.406,0.75 1.719,0.948 0.313,0.198 10 false 25 1.406,1.552 1.719,1.75 0.313,0.198 10 false 9 5.083,0.75 5.396,0.948 0.313,0.198 10 false 19 5.156,1.563 5.469,1.76 0.313,0.198 10 false 5 4.729,2.625 5.042,2.823 0.313,0.198 10 false 5 4.51,2.823 4.823,3.021 0.313,0.198 10 false + 3.833,2.833 4.146,3.031 0.313,0.198 10 false E 3.604,2.625 3.917,2.823 0.313,0.198 10 false 2 5.094,2.625 5.406,2.823 0.313,0.198 10 false 38 5.375,0.927 5.99,1.125 0.615,0.198 10 false CANL 5.375,1.74 5.99,1.938 0.615,0.198 10 false CANH 5.365,2.844 5.979,3.042 0.615,0.198 10 false CSW 3.708,3.104 4.323,3.302 0.615,0.198 10 false G36 3.698,3.26 5.458,3.563 1.76,0.302 10 false VSC OFF Switch 2.948,4.333 5.042,4.594 2.094,0.26 10 false : CAN Communication Line 6.49,2.74 7.104,2.938 0.615,0.198 10 false IC 5.302,3.948 5.917,4.146 0.615,0.198 10 false A39 5.302,4.104 6.854,4.49 1.552,0.385 10 false Skid Control ECU (Brake Actuator Assembly)

for 12.3 Inch TFT Display Type:
C502559E01
0.906,0.927 1.521,1.125 0.615,0.198 10 false CANL 0.896,1.74 1.51,1.938 0.615,0.198 10 false CANH 0.104,3.917 0.719,4.115 0.615,0.198 10 false G150 0.104,4.094 2.031,4.375 1.927,0.281 10 false Combination Meter Assembly 1.406,0.75 1.719,0.948 0.313,0.198 10 false 14 1.406,1.552 1.719,1.75 0.313,0.198 10 false 31 5.083,0.75 5.396,0.948 0.313,0.198 10 false 19 5.156,1.563 5.469,1.76 0.313,0.198 10 false 5 4.729,2.625 5.042,2.823 0.313,0.198 10 false 5 4.51,2.823 4.823,3.021 0.313,0.198 10 false + 3.833,2.833 4.146,3.031 0.313,0.198 10 false E 3.604,2.625 3.917,2.823 0.313,0.198 10 false 2 5.094,2.625 5.406,2.823 0.313,0.198 10 false 38 5.375,0.927 5.99,1.125 0.615,0.198 10 false CANL 5.375,1.74 5.99,1.938 0.615,0.198 10 false CANH 5.365,2.844 5.979,3.042 0.615,0.198 10 false CSW 3.708,3.104 4.323,3.302 0.615,0.198 10 false G36 3.698,3.26 5.458,3.563 1.76,0.302 10 false VSC OFF Switch 2.948,4.333 5.042,4.594 2.094,0.26 10 false : CAN Communication Line 6.49,2.74 7.104,2.938 0.615,0.198 10 false IC 5.302,3.948 5.917,4.146 0.615,0.198 10 false A39 5.302,4.104 6.854,4.49 1.552,0.385 10 false 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)>UTILITY


PROCEDURE

1.READ VALUE USING GTS (TRC/VSC OFF MODE)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

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

Chassis > Brake/EPB > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
TRC(TRAC)/VSC OFF Mode TRC /VSC off mode Normal mode (TRC (TRAC) ON/VSC ON) /
TRC (TRAC) OFF mode (TRC (TRAC) OFF/VSC ON) /
Not defined /
VSC OFF mode (TRC (TRAC) OFF/VSC OFF) 		Normal mode (TRC (TRAC) ON/VSC ON): Normal mode
TRC (TRAC) OFF mode (TRC (TRAC) OFF/VSC ON): TRC off mode
Not defined: Not defined
VSC OFF mode (TRC (TRAC) OFF/VSC OFF): VSC off mode 		-
Chassis > Brake/EPB > Data List
Tester Display
TRC(TRAC)/VSC OFF Mode
50003 435 45

d.

Check the indicator light and mode condition on the GTS changes according to VSC OFF switch operation.

Standard:
Switch Operation Mode Condition Display Multi-information Display ("TRC OFF Message") VSC OFF Indicator Light
Not pressed Normal mode (TRC (TRAC) ON/VSC ON) / Not displayed Does not come on
Pressing the VSC OFF switch TRC (TRAC) OFF mode (TRC (TRAC) OFF/VSC ON) / Displayed Does not come on
Pressing and holding the VSC OFF switch VSC OFF mode (TRC (TRAC) OFF/VSC OFF) Displayed Comes on



Result:
Result Proceed to
Indicator light and mode condition display do not change A
Mode condition display is normal, but indicator light does not change B
Indicator light and mode condition display are normal C



A

2.INSPECT VSC OFF SWITCH

B

INSPECT METER / GAUGE SYSTEM

for SFTM Made: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for SFTM Made)>HOW TO PROCEED WITH TROUBLESHOOTING

for GTMC Made: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for GTMC Made)>HOW TO PROCEED WITH TROUBLESHOOTING


C

USE SIMULATION METHOD TO CHECK

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


2.INSPECT VSC OFF SWITCH
a.

Inspect the VSC OFF switch.

Click here BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS > VSC OFF SWITCH > INSPECTION


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - VSC OFF SWITCH)

NG

REPLACE VSC OFF SWITCH

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>VSC OFF SWITCH>REMOVAL


3.CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - VSC OFF SWITCH)
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 A39 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the G36 VSC OFF switch connector.


d.

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

OK:

No deformation or corrosion.



e.

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

Standard Resistance:
Tester Connection Condition Specified Condition
G36-5 (+) - A39-38 (CSW) Always Below 1 Ω
G36-5 (+) or A39-38 (CSW) - Body ground Always 10 kΩ or higher
G36-2 (E) - Body ground Always Below 1 Ω



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