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Home >> Kia >> 2019 >> Soul Base, Automatic Trans >> Repair and Diagnosis >> Brakes >> Traction Control >> Electronic Stability Control (ESC) System >> Description And Operation >> ESC Operation Mode >> ESC Operation Mode
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ESC Operation Mode

  1. ESC Non-operation-Normal braking.
    - Inlet Valve (IV) Outlet Valve (OV) Traction Control Valve (TCV) High Pressure Switch Valve (HSV) Return Pump
    Normal Braking Open Close Open Close OFF
    Fig 1: Electronic Stability Control System Circuit Diagram - ESC Non-Operation-Normal Braking
    G12225602Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: IV: Inlet Valve
    OV: Outlet Valve
    RL: Rear left wheel
    FR: Front right wheel
    FL: Front left wheel
    RR: Rear right wheel
    RP: Return pump
    TCV: Traction Control Valve
    HSV: High pressure Switch Valve
  2. ESC Increase Mode
    - Inlet Valve (IV) Outlet Valve (OV) Traction Control Valve (TCV) High Pressure Switch Valve (HSV) Return Pump
    Normal Braking Open Close Close (Partial) Open ON (Motor speed control)
    Fig 2: Electronic Stability Control System Circuit Diagram - ESC Increase Mode
    G12225603Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: IV: Inlet Valve
    OV: Outlet Valve
    RL: Rear left wheel
    FR: Front right wheel
    FL: Front left wheel
    RR: Rear right wheel
    RP: Return pump
    TCV: Traction Control Valve
    HSV: High pressure Switch Valve
  3. ESC Hold Mode (FR is only controlled.)
    - Inlet valve (IV) Outlet valve (OV) Traction Control Valve (TCV) High pressure switch valve (HSV) Return pump
    Normal braking Close Close Close (Partial) Open OFF
    Fig 3: Electronic Stability Control System Circuit Diagram - ESC Hold Mode (FR Only Controlled)
    G12225604Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: IV: Inlet Valve
    OV: Outlet Valve
    RL: Rear left wheel
    FR: Front right wheel
    FL: Front left wheel
    RR: Rear right wheel
    RP: Return pump
    TCV: Traction Control Valve
    HSV: High pressure Switch Valve
  4. ESC Decrease Mode (FR is only controlled)
    - Inlet Valve (IV) Outlet Valve (OV) Traction Control Valve (TCV) High Pressure Switch Valve (HSV) Return Pump
    Normal Braking Close Open Close (Partial) Open ON (Motor speed low control)
    Fig 4: Electronic Stability Control System Circuit Diagram - ESC Decrease Mode (FR Only Controlled)
    G12225605Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: IV: Inlet Valve
    OV: Outlet Valve
    RL: Rear left wheel
    FR: Front right wheel
    FL: Front left wheel
    RR: Rear right wheel
    RP: Return pump
    TCV: Traction Control Valve
    HSV: High pressure Switch Valve
Fig 5: Locating ABS Warning Lamp, ESC OFF Lamp And EBD/Parking Brake Warning Lamp
G12225606Courtesy of KIA MOTORS AMERICA, INC.
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