Air Conditioning Panel (For Hatchback) Inspection

Vehicle Interior. Yaris. Ncp93, 131
Heating Air Conditioning. Yaris. Ncp93, 131

  1. INSPECT NO. 1 HEATER CONTROL SUB-ASSEMBLY

  2. INSPECT NO. 2 HEATER CONTROL SUB-ASSEMBLY

  3. INSPECT NO. 3 HEATER CONTROL SUB-ASSEMBLY

Air Conditioning Panel (For Hatchback) -- Inspection



1. INSPECT NO. 1 HEATER CONTROL SUB-ASSEMBLY


  1. Check the resistance of the fresh/recirc switch.



      Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning Panel (For Hatchback) Inspection

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

      Text in Illustration
      *1
      		Fresh/Recirc Switch
      *2
      		Recirc Indicator
      *a
      		Component without harness connected
      (No. 1 Heater Control Sub-assembly)
      Standard Resistance:
      Tester Connection
      		Switch Condition
      		Specified Condition
      3 (FRS) - 4 (REC)
      		Fresh/Recirc switch ON
      		10 kΩ or higher
      Fresh/Recirc switch OFF
      		Below 1 Ω
      5 (LED+) - 4 (REC)
      		Fresh/Recirc switch ON
      		Below 1 Ω
      Fresh/Recirc switch OFF
      		10 kΩ or higher
      If the result is not as specified, replace the heater control.

  1. Check the recirc indicator operation.

    1. Connect the positive (+) lead from the battery to terminal 2 (A/C+) and the negative (-) lead to terminal 4 (REC).

    2. Push the fresh/recirc switch in and check that the indicator lights up.

      OK:
      Indicator lights up
      If the result is not as specified, replace the heater control base.

  1. Check the illumination operation.

    1. Connect the positive (+) lead from the battery to terminal 7 (ILL+) and the negative (-) lead to terminal 6 (ILL-), then check that the bulb illuminates.

      OK:
      Bulb illuminates
      If the result is not as specified, replace the bulb.


2. INSPECT NO. 2 HEATER CONTROL SUB-ASSEMBLY


  1. Check the heater control resistance.



      Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning Panel (For Hatchback) Inspection

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

      Text in Illustration
      *1
      		Rear Defogger Switch
      *2
      		Rear Defogger Indicator
      *a
      		Component with harness connected
      (No. 2 Heater Control Sub-assembly)
      Standard Resistance:
      Tester Connection
      		Switch Condition
      		Specified Condition
      ALL - 5 (E)
      		OFF
      		10 kΩ or higher
      4 (LO) - 5 (E)
      		LO
      		Below 1 Ω
      4 (LO) - 5 (E) - 9 (M1)
      		LO - M1
      		Below 1 Ω
      4 (LO) - 5 (E) - 9 (M1)
      		M1
      		Below 1 Ω
      4 (LO) - 5 (E) - 9 (M1) - 10 (M2)
      		M1 - M2
      		Below 1 Ω
      4 (LO) - 5 (E) - 10 (M2)
      		M2
      		Below 1 Ω
      4 (LO) - 5 (E) - 10 (M2) - 6 (HI)
      		M2 - HI
      		Below 1 Ω
      4 (LO) - 5 (E) - 6 (HI)
      		HI
      		Below 1 Ω
      If the result is not as specified, replace the heater control.

  1. w/ Rear Window defogger:
    Check the rear defogger indicator operation.

    1. Connect the positive (+) lead from the battery to terminal 3 (IG+) and the negative (-) lead to terminal 5 (E).

    2. Push the rear defogger switch in and check that the indicator lights up.

      OK:
      Indicator lights up
      If the result is not as specified, replace the No. 3 heater control knob.

  1. Check the illumination operation.

    1. Connect the positive (+) lead from the battery to terminal 7 (ILL+) and the negative (-) lead to terminal 1 (ILL-), then check that the bulb illuminates.

      OK:
      Bulb illuminates
      If the result is not as specified, replace the bulb.


3. INSPECT NO. 3 HEATER CONTROL SUB-ASSEMBLY


  1. Check the No. 3 heater control resistance.



      Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning Panel (For Hatchback) Inspection

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

      Text in Illustration
      *1
      		A/C Switch
      *2
      		A/C Indicator
      *a
      		Component without harness connected
      (No. 3 Heater Control Sub-assembly)
      Standard Resistance:
      Tester Connection
      		Switch Condition
      		Specified Condition
      2 (B) - 3 (A/C)
      		A/C switch OFF
      		10 kΩ or higher
      2 (B) - 3 (A/C)
      		A/C switch ON
      		Below 1 Ω
      If the result is not as specified, replace the No. 3 heater control.

  1. w/ Max Hot Switch:
    Check the No. 3 heater control resistance.

  1. Check the A/C indicator operation.

    1. Connect the positive (+) lead from the battery to terminal 2 (B) and the negative (-) lead to terminal 4 (AIND).

    2. Push the air conditioning switch in and check that the indicator lights up.

      OK:
      Indicator lights up
      If the result is not as specified, replace the No. 3 heater control.

  1. Check the illumination operation.

    1. Connect the positive (+) lead from the battery to terminal 5 (ILL+) and the negative (-) lead to terminal 6 (ILL-), then check that the bulb illuminates.

      OK:
      Bulb illuminates
      If the result is not as specified, replace the bulb.