| System Circuit Diagram |


| Housing | Pin | Function | Wire color |
| Pad | A | GND | Back |
| B | HEATER | Yellow | |
| C | NTC+ | Back / Red | |
| D | NTC- | Back | |
| Remote control | A | GND | Back |
| B | BAT | Red | |
| C | LED | Green | |
| D | SWITCH | White |
Description When manually selected, the heated steering wheel system improves the thermal comfort of the driver by heating the steering wheel. Heated control unit Heated pad Specifications ItemSpecificationVoltage13.
Inpection 1. Measure a resistance of NTC and Heated pad. – NTC resistance(Black / Yellow, Black) - 10.0 kΩ ± 10% (25°C) – Heated pad resistance (Yellow, Black) - 1.
Description 1. The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor resistance will increase with lower temperature, and decrease with higher temperatures.
Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower unit.(Refer to HA group – heater unit). 3. Remove the blower unit (A) from the heater unit after loosening a mounting bolt and 3 screws. Make sure that there is no air leaking out of the blower and duct joints.