Kia Rio: Steering wheel / Heated Steering wheel

Kia Rio 2017-2021 YB Service Manual / Steering System / Steering wheel / Heated Steering wheel

Description and operation

Description

The heated steering wheel system improves the thermal comfort of the driver by heating the steering wheel when manually selected.

Specifications

Item	Specification
Voltage	13.5 V ± 0.1V, 80W±10%
Heated pad resistance	1.85 ± 0.2 Ω (at 22°C ±1°C)
NTC resistance	10.0 kΩ ± 3% (at 23 - 27°C)

Schematic diagrams

System Circuit Diagram

Harness Connector

Terminal Function

Housing	Pin	Function	Wire color
Pad	A	GND	Black
	B	HEATER	Yellow
	C	NTC+	Black / Red
	D	NTC¯	Black

Repair procedures

Inspection

1.	Measure a resistance of NTC and Heated pad. NTC resistance (Black / Red, Black) : 10.0 kΩ ± 3% (at 23 - 27°C) Heated pad resistance (Yellow) : 1.85 ± 0.2 Ω (at 22°C ±1°C)

Measure a temperature.

–	The temperature of wheel surface grip must rise from -20°C to 20°C within 6 minute

–	The temperature of wheel surface grip must keep 38°C after 25 minute

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