HEATED STEERING WHEEL SYSTEM FAIL-SAFE CHART


  1. MALFUNCTION DETECTION


    1. Operation when malfunction is detected

      Content Operation
      When thermistor trouble is detected Heater off
      When overheating (175°C (347°F)) of controller is detected Heater off
      When load short current (50 A or more) is detected Heater off
      When undervoltage (4.5 V) is detected Heater off
      OFF timer (30 min.) After preset time of timer passes, heater off

    2. Malfunction detection conditions


      1. When an open or short in the steering wheel's thermistor continues for 2 seconds or more.

    3. Malfunction display


      1. The LED of the steering heater switch turns off.