CLIMATE CONTROL SEAT SYSTEM Climate Control System does not Operate on Driver Side

DESCRIPTION

The air conditioning control assembly sends operation signals to the air conditioning amplifier assembly via the LIN communication line. The air conditioning amplifier assembly actives the seat blowers according these signals.

WIRING DIAGRAM


  1. for LHD

    B002IFLE03

  2. for RHD

    B002IFLE02

CAUTION / NOTICE / HINT

Note


  • The climate control seat system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the climate control seat system after confirming that the communication systems are functioning properly.

  • If the auxiliary battery voltage is low, the climate control seat system may not operate. When "High Power Consumption / Partial Limit On AC/Heater Operation" is displayed on the multi-information display in the combination meter assembly, inspect the auxiliary battery, referring to On-vehicle Inspection for the charging system.

    Click here

    Tech Tips

    If the auxiliary battery voltage is low, "Operation Limitation Control History Count (Level 1)" and "Operation Limitation Control History Count (Level 2) is counted.

    Click here

  • If the auxiliary battery voltage is low, the climate control seat system may not operate. Refer to Data List for the power steering system.

    Click here

    Click here

  • Inspect the fuses for circuits related to this system before performing the following procedure.

  • When the auxiliary battery is disconnected or the air conditioning amplifier assembly is replaced, be sure to perform servo motor initialization.

PROCEDURE


  1. CHECK CLIMATE CONTROL SEAT OPERATION (for Driver Side)


    1. Check the climate control seat operation.

      Click here

      Result
      Result Proceed to
      Only seat cushion climate control blower assembly (for Driver Side) does not operate A
      Only seatback climate control blower (for Driver Side) does not operate B
      Both climate control blowers do not operate C

    A

    REPLACE SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY (for Driver Side) Click here

    C

    CHECK HARNESS AND CONNECTOR (SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY [for Driver Side] - BATTERY AND BODY GROUND) Click here

    B

  2. CHECK HARNESS AND CONNECTOR (SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY [for Driver Side] - SEATBACK CLIMATE CONTROL BLOWER [for Driver Side])


    • *1: for LHD

    • *2: for RHD


    1. Disconnect the g6*1 or f10*2 seat cushion climate control blower assembly (for Driver Side) connector.

    2. Disconnect the k1*1 or j1*2 seatback climate control blower (for Driver Side) connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      g6-2 (GND2) - k1-3 (GND) Always Below 1 Ω
      g6-2 (GND2) or k1-3 (GND) - Body ground Always 10 kΩ or higher
      g6-3 (IGB) - k1-1 (IGB) Always Below 1 Ω
      g6-3 (IGB) or k1-1 (IGB) - Body ground Always 10 kΩ or higher
      g6-4 (VS) - k1-2 (VS) Always Below 1 Ω
      g6-4 (VS) or k1-2 (VS) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      f10-2 (GND2) - j1-3 (GND) Always Below 1 Ω
      f10-2 (GND2) or j1-3 (GND) - Body ground Always 10 kΩ or higher
      f10-3 (IGB) - j1-1 (IGB) Always Below 1 Ω
      f10-3 (IGB) or j1-1 (IGB) - Body ground Always 10 kΩ or higher
      f10-4 (VS) - j1-2 (VS) Always Below 1 Ω
      f10-4 (VS) or j1-2 (VS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK SEATBACK CLIMATE CONTROL BLOWER (for Driver Side)


    1. Temporarily replace the seatback climate control blower (for Driver Side) with a new or normally functioning one.

      Click here

    2. Check the climate control seat operation.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    END (SEATBACK CLIMATE CONTROL BLOWER [for Driver Side] WAS DEFECTIVE)

    NG

    REPLACE SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY (for Driver Side) Click here

  4. CHECK HARNESS AND CONNECTOR (SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY [for Driver Side] - BATTERY AND BODY GROUND)


    1. B002J5RC10
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Seat Cushion Climate Control Blower Assembly [for Driver Side])

      Disconnect the g6*1 or f10*2 seat cushion climate control blower assembly (for Driver Side) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Voltage
      for LHD
      Tester Connection Switch Condition Specified Condition
      g6-1 (IG) - Body ground Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      for RHD
      Tester Connection Switch Condition Specified Condition
      f10-1 (IG) - Body ground Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      g6-6 (GND) - Body ground Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      f10-6 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY [for Driver Side])


    1. Disconnect the I54 air conditioning amplifier assembly connector.

    2. Disconnect the g6*1 or f10*2 seat cushion climate control blower assembly (for Driver Side) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      I54-11 (SVDB) - g6-5 (SI) Always Below 1 Ω
      I54-11 (SVDB) or g6-5 (SI) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      I54-11 (SVDB) - f10-5 (SI) Always Below 1 Ω
      I54-11 (SVDB) or f10-5 (SI) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY


    1. B002IWIC01
      *a

      Component with harness connected

      (Air Conditioning Amplifier Assembly)

      Reconnect the air conditioning amplifier assembly connector.

    2. Reconnect the g6*1 or f10*2 seat cushion climate control blower assembly (for Driver Side) connector.


      • *1: for LHD

      • *2: for RHD

    3. Check for pulses according to the condition(s) in the table below.

      Measurement Condition
      Item Content
      Tester Connection I54-11 (SVDB) - Body ground
      Tool Setting 1 V/DIV., 1 ms/DIV.
      Vehicle Condition

      • Power switch on (IG)

      • Climate control switch (for Driver Side) on
      OK
      Waveform is similar to that shown in the illustration.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY (for Driver Side) Click here

    NG

  7. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY


    1. Temporarily replace the air conditioning amplifier assembly with a new or normally functioning one.

      Click here

    2. Check the climate control seat operation.

      Click here

      OK
      Climate control seat system is operated normally.
      Result
      Proceed to
      OK
      NG

    OK

    END (AIR CONDITIONING AMPLIFIER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE AIR CONDITIONING CONTROL ASSEMBLY Click here