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Home >> Kia >> 2013 >> Soul Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Idle Stop & Go (ISG) System - 1.6L >> Description and Operation >> Operation Condition for the ISG function >> Restriction condition for OBD Check & Emission control

Restriction condition for OBD Check & Emission control

Auto Stop system will be limited During Canister purge monitoring
During OBD check
To restrict continuous Cranking (for Emission Control) Start Motor can operate for two seconds at the longest (just once)
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.
They are only available again a closed-circuit current measurement of approximate 4 hours in which the vehicle may not be wakened. In this time, the ISG system is inactive.
CAUTION: ISG system deactivation by fault.
  • Fault in communication line (LIN/CAN)

    Fault Electric oil pump

    Fault ESC 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 is operated about 4 hours later normally. But in the case of first 25 times, the ISG function can be operated regardless of recalibration.
If the ISG function is not operated after 4 hours, perform recalibration procedure again.
(Refer to "BATTERY SENSOR RECALIBRATION PROCEDURE .")
WARNING: When the engine is in Idle stop mode, it's possible to restart the engine 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.