Hyundai Ioniq: Hybrid Motor Control System / Motor Temperature Sensor. Repair procedures

Hyundai Ioniq (AE) 2017-2025 Service Manual / Hybrid Motor System / Hybrid Motor Control System / Motor Temperature Sensor. Repair procedures

Inspection

Check the temperature sensor resistance.

[Hybrid drive motor]

Measuring equipment : Multimeter

Category	Inspection area	Inspection criteria	Remarks
Resistance (Temperature sensor)	Pin 4 - 8	8kΩ (30°C / 86°F) - 20kΩ (10°C / 50°F)	10 - 30°C / 50 - 86°F

[Hybrid starter generator (HSG)]

Measuring equipment : Multimeter

Category	Inspection area	Inspection criteria	Remarks
Resistance (Temperature sensor)	Pin 4 - 9	126.8 kΩ	Based on ambient temperature (20°C)

2.	If you need to replace the temperature sensor, replace the HSG assembly. (Refer to Hybrid Motor Assembly - "Hybrid Starter Generator".)

Motor Temperature Sensor. Schematic diagrams

C..

Hybrid Motor Cooling System

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Rear Seats

Folding the rear seat

The rear seatbacks can be folded to facilitate carrying long items or to increase the luggage capacity of the vehicle.

WARNING

Never allow passengers to sit on top of the folded down seatback while the vehicle is moving. This is not a proper seating position and no seat belts are available for use. This could result in serious injury or death in case of an accident or sudden stop. Objects carried on the folded down seatback should not extend higher than the top of the front seatbacks. This could allow cargo to slide forward and cause injury or damage during sudden stops.