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Home >> Hyundai >> 2021 >> Palisade Calligraphy, FWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Idle Stop & Go (ISG) System >> Schematic Diagrams >> Operating Condition for the ISG Function >> ISG ON/OFF switch indicator state
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ISG ON/OFF switch indicator state

Ref Symbol Description State Remark
G14423939Courtesy of HYUNDAI MOTOR AMERICA
AUTO STOP Green Symbol ISG ON switch indicator state
G14423940Courtesy of HYUNDAI MOTOR AMERICA
Yellow Symbol ISG OFF switch indicator state
NOTE:
  • In case of error during idle stop, the engine can only be started by using the key.
CAUTION:
  • The ISG system is strongly networked with the power management. In the event of battery replacement, disconnection of the battery terminal or after changing the engine management system, the reference data regarding the battery charge state and battery condition can be lost.
  • Battery sensor can be reactivated by parking for approximately 4 hours after connecting the negative (-) battery terminal to the battery.
CAUTION: ISG system deactivation by fault.
  • Fault in communication line (LIN/CAN)

    Fault Electric oil pump

    Fault ESP System

    Fault Limp home mode

  • Fault brake booster vacuum pressure sensor

    Fault Brake master cylinder pressure sensor

    Fault Brake pedal switch

    Fault Battery sensor

    When the ISG related sensors or system error occurs, the ISG OFF switch lights up. Especially when the battery sensor is replaced or reinstalled, the vehicle must be placed in the ignition switch OFF for about 4 hours for recalibration.

    The ISG function should operate properly in approximately 4 hours. However, for the first 25 times, the ISG function will operate regardless of recalibration.

WARNING:
  • When the engine is in idle stop mode, it can be restarted without the driver taking any action.
  • Before leaving the car or doing anything in the engine room area, stop the engine by turning the ignition key to the LOCK position or removing it.