Hyundai Ioniq: Heated Steering wheel / Repair procedures
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. | Remove the body control module (A) after loosening the mounting nuts. 
|
6. | Install in the reverse order of 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). 
|
4. | Install in the reverse order of removal. |
1. | Measure a resistance of NTC and Heated pad. –
| NTC resistance (Gray, Black) - 10.0 kΩ ± 10% (25°C) |
–
| Heated pad resistance (Yellow, Black) - 1.8 ± 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 |
–
| At that time switch on, all measure point (1-8) |

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System Circuit DiagramBody control ModuleHeated steering switchHeated steering padTermainal functionBody control module
Pin
Function
D3Ignition 2_Heated handle powerD4Ignition 2_Heated handle power_2D5Heated handleC22NTC (-)C9NTC (+)C4Heated handle switchHeated steering wheel pad
Housing
Pin
Function
Wire color
PadAGroundBLACKBHEATERYELLOWCNTC+GRAYDNTC-BLACKHeated steering wheel switch
Pin
Function
7Wheel heated12Wheel heated IND...
Other information:
Inspection1.Check that the voltage values of No. 1, 2 duct sensors change1. Sensor (+ 5V)2. Sensor groundSpecification Ambient temperature [°C (°F)] Resistance (kΩ) Voltage (V) 50 (122)1...
S..
Categories

The seatback pocket is provided on the back of the front passenger's seatback.
WARNING
To prevent the Occupant Classification System from malfunctioning:
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