STEERING HEATER SWITCH INSPECTION


  1. INSPECT STEERING HEATER SWITCH


    1. A019N5QE02
      Text in Illustration
      *a

      Component without harness connected

      (Steering Heater Switch)

      Disconnect the F105 steering heater switch connector.

    2. Measure the voltage according to the value(s) in the table below.

      Tech Tips

      As the circuit has a diode, perform the measurement in diode test mode, and do not mistake the polarity.

      Standard Voltage

      Tester Connection

      (Positive (+) tester probe - Negative (-) tester probe)

      		 Condition Specified Condition
      F105-1 (IG) - F105-6 (IND) Always Below 1.25 V
      F105-5 (ECU) - F105-6 (IND) Steering heater switch is pushed Below 1.25 V

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F105-1 (IG) - F105-5 (ECU) Steering heater switch is pushed Below 1 Ω
      F105-1 (IG) - F105-5 (ECU) Steering heater switch is not pushed 10 kΩ or higher