VSC OFF Switch Circuit [01/2019 - 09/2022]: Procedure
- READ VALUE USING TECHSTREAM (TRAC/VSC OFF MODE)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Enter the following menus: Chassis / Brake / Data List.
Chassis > Brake > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note TRC (TRAC)/VSC OFF Mode TRAC/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): TRAC off mode
Not defined: Not defined
VSC OFF mode (TRC (TRAC) OFF/VSC OFF): VSC off mode- Chassis > Brake > Data List
Tester Display TRC (TRAC)/VSC OFF Mode - Check the indicator light and mode condition on the Techstream changes according to VSC OFF switch (combination switch assembly) operation.
Standard
Switch Operation Mode Condition Display Multi-information Display ("Traction Control Turned Off") VSC OFF Indicator Light Not pressed Normal mode (TRC (TRAC) ON/VSC ON) Not displayed Does not come on Pressing the VSC OFF switch (combination switch assembly) TRC (TRAC) OFF mode (TRC (TRAC) OFF/VSC ON) Displayed Does not come on Pressing and holding the VSC OFF switch (combination switch assembly) 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
Result:
B
INSPECT METER / GAUGE SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - 09/2022]
Result:
C
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]
Result:
A
See step 2
- INSPECT COMBINATION SWITCH ASSEMBLY
- Make sure that there is no looseness at the locking part and the connecting part of the connector.
*a Component without harness connected
(VSC OFF Switch (Combination Switch Assembly))OK
The connector is securely connected.
- Disconnect the I61 VSC OFF switch (combination switch assembly) connector.
- Check both the connector case and the terminal for deformation and corrosion.
OK
No deformation or corrosion.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 7 (+) - 5 (E) Switch pushed Below 50 Ω 7 (+) - 5 (E) Switch not pushed 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPLACE COMBINATION SWITCH ASSEMBLY. Refer to REMOVAL [01/2019 - 09/2022]
Result:
OK
See step 3
- Make sure that there is no looseness at the locking part and the connecting part of the connector.
- CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - COMBINATION 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.
- Disconnect the A100 skid control ECU (brake actuator assembly) connector.
- Disconnect the I61 VSC OFF switch (combination switch assembly) connector.
- Check both the connector case and the terminals for deformation and corrosion.
OK
No deformation or corrosion.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition I61-7 (+) - A100-22 (CSW) Always Below 1 Ω I61-7 (+) or A100-22 (CSW) - Body ground Always 10 kΩ or higher I61-5 (E) - Body ground Always Below 1 Ω Result
Proceed to OK NG
Result:
OK
REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL [01/2019 - 03/2019] , or refer to REMOVAL [03/2019 - 09/2022]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Make sure that there is no looseness at the locking part and the connecting part of the connector.