Hyundai Tucson: Idle Stop and Go (ISG) System / ISG Malfunction
ISG system may not operate if:
- The Auto Stop (
.png)
)
indicator
illuminates in yellow on the
instrument cluster. - The ISG OFF button illuminates.
Contact an authorized HYUNDAI dealer for assistance.
Conditions that Restart the
Engine
The engine is automatically restarted if:
The brake vacuum pressure is low.
The engine has stopped for about 5
minutes.
The air conditioning is ON with the fan
speed set to a certain hig ...
Calibrating the Battery Sensor
If the AGM battery is reconnected or
replaced, the ISG system does not
operate immediately. If you want to use
the system, the battery sensor needs to
be calibrated following the procedure.
1 ...
Other information:
Hyundai Tucson (NX4) 2022-2025 Service Manual: Description and Operation
- Description
TREAD Lamp
– Tire Under Inflation / Leak Warning.
1.Turn on condition – When tire pressure is below allowed threshold
– When rapid leak is detected by the sensor.
– Indicates that tire needs to be re-inflated to placard pressure / repaired.
2.Turn off condition ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Heater & A/C Control Unit (Manual)
- Component
Connector Pin Function
Pin NoConnector A (Blower)Connector B (Main)
1LowBattery (+)
2CommonISG B+
3GroundILL+ (TAIL)
4Middle LowSensor REF (+5V)
5Middle HighMode control actuator feedback
6HighTemperature control actuator feedback
7Intake actuator feedback
8Evaporator tem ...
