STEERING HEATER SWITCH INSPECTION

PROCEDURE


  1. REMOVE NO. 2 COMBINATION SWITCH ASSEMBLY

    Click here

  2. INSPECT NO. 2 COMBINATION SWITCH ASSEMBLY


    1. A01CP21C01
      *a

      Component without harness connected

      (No. 2 Combination Switch Assembly (Steering Heater Switch))

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

      Standard Voltage
      Tester Connection (Positive (+) Tester Probe - Negative (-) Tester Probe) Switch Condition Specified Condition
      7 (IG1) - 20 (IND) Always Below 1.25 V
      19 (ECU) - 20 (IND) Steering heater switch is pushed Below 1.25 V

      Tech Tips

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

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      7 (IG1) - 19 (ECU) Steering heater switch is pushed Below 1 Ω
      Steering heater switch is not pushed 10 kΩ or higher

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

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

  3. INSTALL NO. 2 COMBINATION SWITCH ASSEMBLY

    Click here