AIR CONDITIONING PANEL(for Manual Air Conditioning System) INSPECTION

PROCEDURE

  1. INSPECT HEATER CONTROL BASE (AIR INLET CONTROL SWITCH)

    1. E145136E13

      Disconnect the connector from the heater control base (air inlet control switch).

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      3 (FRS) - 4 (REC)

      Air inlet control switch FREE

      Below 1 Ω

      3 (FRS) - 4 (REC)

      Air inlet control switch LOCK

      10 kΩ or higher
      Table 1. Text in Illustration

      *1

      Component without harness connected

      (Heater Control Base [Air Inlet Control Switch])

    3. Check that the indicator light comes on.

      1. Turn the heater control base (air inlet control switch) to LOCK.

      2. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 4, and check that the indicator light comes on.

        OK

        The indicator light comes on.

        If the result is not as specified, replace the heater control base (air inlet control switch).

  2. INSPECT HEATER CONTROL (BLOWER SWITCH)

    1. E145135E27

      Disconnect the connector from the heater control (blower switch).

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      4 (LO), 6 (HI), 9 (M1), 10 (M2) - 5 (E)

      Blower switch OFF

      10 kΩ or higher

      4 (LO) - 5 (E)

      Blower switch LO

      Below 1 Ω

      4 (LO), 9 (M1) - 5 (E)

      Blower switch M1

      Below 1 Ω

      4 (LO), 10 (M2) - 5 (E)

      Blower switch M2

      Below 1 Ω

      4 (LO), 6 (HI) - 5 (E)

      Blower switch HI

      Below 1 Ω

    3. Check that the indicator light comes on.

      1. Turn the heater control base (air inlet control switch) to LOCK.

      2. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 4, and check that the indicator light comes on.

        OK

        The indicator light comes on.

        Table 2. Text in Illustration

        *1

        Component without harness connected

        (Heater Control [Blower Switch])

        If the result is not as specified, replace the heater control (blower switch).

  3. INSPECT NO. 3 HEATER CONTROL

    1. E145243E45

      Disconnect the connector from the No. 3 heater control.

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      2 (B) - 3 (A/C)

      No. 3 heater control (A/ C) LOCK

      Below 1 Ω

      2 (B) - 3 (A/C)

      No. 3 heater control (A/ C) FREE

      10 kΩ or higher

      7 (B) - 8 (E) *1

      No. 3 heater control (MAX HOT) ON

      Below 1 Ω

      7 (B) - 8 (E) *1

      No. 3 heater control (MAX HOT) OFF

      10 kΩ or higher

      *1: w/ PTC Heater

      Table 3. Text in Illustration

      *1

      w/ PTC Heater

      *2

      Component without harness connected

      (No. 3 Heater Control)

    3. Check that the indicator light comes on.

      1. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 4, and check that the indicator light comes on.

        OK

        The indicator light comes on.

        If the result is not as specified, replace the No. 3 heater control.