Operation Condition for the ISG function
- Auto stop or Auto start condition
- If all of the below condition are satisfied
Component State Remark ISG OFF Switch OFF ISG OFF switch indicator lamp ->OFF Air conditioning system Ambient temperature is between -2° - 35°C (28.4° - 95°F) Engine Coolant Temperature Over 30°C (86°F) Brake vacuum Below -35 kPa Drive door, Seat belt, Hood Closed EMS state (TPS/CKP/CMP/WTS/Vehicle speed signal) satisfy DPF Regeneration prohibited A/C System satisfy Battery sensor [SOC: Over 78%, Temperature: 2°- 55°C (35.6° - 131°F)] satisfy ISG related part error Does not occur Vehicle speed Entry the below 0 kph after Over 8 kph Prohibition the ISG System before 8 kph Accelerator pedal OFF Engine auto stop condition Brake switch ON Engine auto stop condition OFF Engine auto stop condition Gear state N (Neutal)/D Engine auto stop condition R/1/2 Engine auto stop condition NOTE:- In congested areas, if the driver wishes to stop the vehicle and change lever from D→N, the ignition will turn OFF.
- Restriction conditions Auto stop or Auto start
- If one of the following conditions is met, the ISG system will not operate properly.
Component Conditions Remark ISG OFF switch ON ISG OFF switch indicator state EMS State (TPS/CKP/CMP/WTS/Vehicle speed signal etc.) Dissatisfaction DPF Regeneration prohibited Drive door, Seat belt, hood state Open Brake vacuum Over -35 kPa A/C State Dissatisfaction Battery sensor (SOC: Over 78%, Temperature: 2 - 60°C) Dissatisfaction ISG system error Occur Steering wheel Greater the angle A/C System A/C switch ON, FATC over 6, MTC over 3 Defrost Defrost switch ON etc Downhill, Rapid ascents Operate the SPAS - Forced re-start conditions (If any of the below condition is not satisfied)
Component Conditions Remark Conditions for safety Low pressure for braking system Over -35 kpa Low battery voltage Continue the electrical load during the 3 min Active defroster of front glass When inertial speed reach 1.5 km/hour with (down hill) Open the door or unfasten driver's seat belt Brake Pedal Pressed Open the hood, ignition switch starting Elapsed much of stop time After 300 sec. Stop the vehicle at rapid ramp Conditions for convenience A/C ON, FATC over 6, MTC over 3 or dissatisfaction HVAC performance Active 'ISG OFF' button - Restriction conditions for Auto-Stop operation
| Conditions | State | Remark |
|---|---|---|
| Drive door, seat belt, hood state (Brake OFF state) | Open | Starting is possible to "ignition switch or button start key" (Only) |
| CAN error (TCU, FATC/Cluster) | Occur | |
| EMS state (TPS/CKP/CMP/WTS/Vehicle speed signal) | Dissatisfaction |
NOTE:
- If error occurred in the idle stop status, it is possible to start the engine by the key only.
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 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.
- 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 is operated about 4 hours later normally. But in the case of first 25 times, the ISG function can be operated regardless of recalibration.
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.