Measure a resistance of NTC and Heated pad.
NTC resistance(Black / Yellow, Black) - 10.0 kΩ ± 10% (25°C)
Heated pad resistance (Yellow, Black) - 1.6 ~ 2.0 Ω ± 10%
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)