Hyundai i-30: Steering wheel / Heated Steering wheel

Hyundai i30 (PD) 2018-2024 Service Manual / Steering System / Steering wheel / Heated Steering wheel

Components and components location
Components location (1)
Heated steering wheel switch

1. Heated steering switch

Heated steering wheel control module (Body control moduel(BCM))

1. Body contorl module

Description and operation
Description
For the convenience of drivers during the winter, exothermic paint is applied to the surface of the steering wheel to generate heat when it is gripped.
Heated control unit (Body control module(BCM))

Heated pad

Specifications
Specifications
Item
Specification
Voltage
 13.5V
Heated pad resistance
 1.85 ± 0.2Ω
NTC resistance
 10.0 kΩ ± 3% (25°C)

Schematic diagrams
System Circuit Diagram
Body control unit

Heated steering wheel switch

Heated steering wheel pad

Termainal function
Body control unit

Pin
Function
C11
 Heated handle
C22
 Ignition 2_Heated handle power
A16
 Heated handle switch
C19
 NTC (-)
B6
 NTC (+)
D3
 Heated handle IND.

Heated steering wheel pad

Housing
Pin
Function
Wire color
Pad
 A
 Ground
 BLACK
B
 HEATER
 YELLOW
C
 NTC+
 GRAY
D
 NTC-
 BLACK

Heated steering wheel switch

Pin
Function
19
 Wheel heated
20
 Wheel heated IND.

Repair procedures
Removal
Heated steering wheel switch
1.
Disconnect the negative (-) battery terminal.
2.
Remove the floor console upper complete assembly.
(Refer to Body - "Floor Console Assembly")
3.
Disconnect the connector (A).

Loosen the screw and then remove the switch.
Heated steering wheel control module (Body control moduel(BCM))
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box.
(Refer to Body - "Glove Box Upper Cover Assembly")
3.
Remove the smart key unit.
(Refer to Body - "Smart Key Unit")
4.
Disconnect the body control module connectors (A).
5.
Disconnect the body control module connectors (A) and then remove the BCM (B).
Inspection
1.
Measure a resistance of NTC and Heated pad.
–
NTC resistance - 10.0kΩ ± 3% (25°C)
–
Heated pad resistance - 1.85 ± 0.2Ω
2.
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 ± 4°C after 25 minute .

    Repair procedures

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    (1) Driver’s door power window switch
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