Hyundai Tucson: Idle Stop and Go (ISG) System / ISG Malfunction
ISG system may not operate if:
- The Auto Stop (
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)
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) 2022-2026 Service Manual: Evaporator Temperature Sensor
- Description
The evaporator temperature sensor will detect the evaporator core
temperature and interrupt compressor relay power in order to prevent
evaporator from freezing by excessive cooling.
- Inspection
1.Turn the ignition switch ON.
2.Turn the A/C swicth ON.
3.Measure resist ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: PTC Heater
- Description
The PTC (Positive Temperature Coefficient) heater is installed at the
exit or the backside of the heater core.The PTC heater is an electric
heater using a PTC element as an auxiliary heating device that
supplements deficiency of interior heat source in highly effective
diese ...
