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

DESCRIPTION

The air conditioning amplifier assembly receives refreshing seat switch position signals when the engine switch is on (IG), and then transmits airflow amount signals to each seat climate blower.

WIRING DIAGRAM

Figure 1. for LHD:

B006NPWE05

Figure 2. for RHD:

B006NPWE06

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK CLIMATE CONTROL SEAT OPERATION (for Front Passenger Seat)


    1. Check the climate control seat operation again.

      Click here

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

    B

    REPLACE SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY (FRONT PASSENGER SEAT) Click here

    C

    INSPECT REFRESHING SEAT SWITCH Click here

    A

  2. CHECK HARNESS AND CONNECTOR (SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY (for Front Passenger Seat) - SEATBACK CLIMATE CONTROL BLOWER (for Front Passenger Seat))


    1. for LHD:


      1. Disconnect the W36 seat cushion climate control blower assembly RH connector.

      2. Disconnect the X10 seatback climate control blower RH connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        W36-2 (GND2) - X10-3 (GND) Always Below 1 Ω
        W36-2 (GND2) or X10-3 (GND) - Body ground Always 10 kΩ or higher
        W36-4 (Vs) - X10-2 (Vs) Always Below 1 Ω
        W36-4 (Vs) or X10-2 (Vs) - Body ground Always 10 kΩ or higher
        W36-3 (IGB) - X10-1 (IGB) Always Below 1 Ω
        W36-3 (IGB) or X10-1 (IGB) - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the W48 seat cushion climate control blower assembly LH connector.

      2. Disconnect the X11 seatback climate control blower LH connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        W48-2 (GND2) - X11-3 (GND) Always Below 1 Ω
        W48-2 (GND2) or X11-3 (GND) - Body ground Always 10 kΩ or higher
        W48-4 (Vs) - X11-2 (Vs) Always Below 1 Ω
        W48-4 (Vs) or X11-2 (Vs) - Body ground Always 10 kΩ or higher
        W48-3 (IGB) - X11-1 (IGB) Always Below 1 Ω
        W48-3 (IGB) or X11-1 (IGB) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE SEATBACK CLIMATE CONTROL BLOWER (for Front Passenger Seat)


    1. Temporarily replace the seatback climate control blower (for Front Passenger Seat) with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK CLIMATE CONTROL SEAT OPERATION (for Front Passenger Seat)


    1. Check the climate control seat operation.

      Click here

      OK
      The climate control seat operates normally.
      Result
      Proceed to
      OK
      NG

    OK

    END (SEATBACK CLIMATE CONTROL BLOWER (for Front Passenger Seat) WAS DEFECTIVE)

    NG

    REPLACE SEAT CLIMATE CONTROL BLOWER (for Front Passenger Seat) Click here

  5. INSPECT REFRESHING SEAT SWITCH


    1. Remove the refreshing seat switch.

      Click here

    2. Inspect the refreshing seat switch.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REFRESHING SEAT SWITCH Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (REFRESHING SEAT SWITCH - BATTERY AND BODY GROUND)


    1. B006ONQC08
      *a

      Front view of wire harness connector

      (to Refreshing Seat Switch)

      Disconnect the refreshing seat switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P6-12 (E) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      P6-5 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (REFRESHING SEAT SWITCH - AIR CONDITIONING AMPLIFIER ASSEMBLY)


    1. Disconnect the P6 refreshing seat switch connector.

    2. Disconnect the G38 air conditioning amplifier assembly connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      P6-8 (SVS5) - G38-9 (S5-2) Always Below 1 Ω
      P6-8 (SVS5) or G38-9 (S5-2) - Body ground Always 10 kΩ or higher
      P6-9 (BLRH) - G38-18 (SVDS) Always Below 1 Ω
      P6-9 (BLRH) or G38-18 (SVDS) - Body ground Always 10 kΩ or higher
      P6-10 (SVSG) - G38-8 (SG-3) Always Below 1 Ω
      P6-10 (SVSG) or G38-8 (SG-3) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      P6-7 (BLLH) - G38-19 (SVPS) Always Below 1 Ω
      P6-7 (BLLH) or G38-19 (SVPS) - Body ground Always 10 kΩ or higher
      P6-8 (SVS5) - G38-9 (S5-2) Always Below 1 Ω
      P6-8 (SVS5) or G38-9 (S5-2) - Body ground Always 10 kΩ or higher
      P6-10 (SVSG) - G38-8 (SG-3) Always Below 1 Ω
      P6-10 (SVSG) or G38-8 (SG-3) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY (for Front Passenger Seat) - BATTERY AND BODY GROUND)


    1. B006ND9C01
      *a

      Front view of wire harness connector

      (to Seat Cushion Climate Control Blower Assembly RH)

      for LHD:


      1. Disconnect the seat cushion climate control blower assembly RH connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        W36-6 (GND) - Body ground Always Below 1 Ω

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

        Standard Voltage
        Tester Connection Switch Condition Specified Condition
        W36-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V
        Engine switch off Below 1 V
    2. B006ND9C02
      *a

      Front view of wire harness connector

      (to Seat Cushion Climate Control Blower Assembly LH)

      for RHD:


      1. Disconnect the seat cushion climate control blower assembly LH connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        W48-6 (GND) - Body ground Always Below 1 Ω

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

        Standard Voltage
        Tester Connection Switch Condition Specified Condition
        W48-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V
        Engine switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK HARNESS AND CONNECTOR (SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY (for Front Passenger Seat) - AIR CONDITIONING AMPLIFIER ASSEMBLY)


    1. for LHD:


      1. Disconnect the W36 seat climate control blower RH connector.

      2. Disconnect the G38 air conditioning amplifier assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        W36-5 (Si) - G38-10 (ROUT) Always Below 1 Ω
        W36-5 (Si) or G38-10 (ROUT) - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the W48 seat climate control blower LH connector.

      2. Disconnect the G38 air conditioning amplifier assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        W48-5 (Si) - G38-11 (LOUT) Always Below 1 Ω
        W48-5 (Si) or G38-11 (LOUT) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY


    1. Check for pulses according to the value(s) in the table below.


      1. B006OT4C01
        *a

        Component with harness connected

        (Air Conditioning Amplifier Assembly)

        for LHD:

        Measurement Condition
        Item Content
        Tester Connection G38-10 (ROUT) - Body ground
        Tool Setting 1 V/DIV., 1 ms/DIV.
        Vehicle Condition

        • Engine switch on (IG)

        • Refreshing seat switch (for RH) on and set to seat blower position
      2. B006OT4C02
        *a

        Component with harness connected

        (Air Conditioning Amplifier Assembly)

        for RHD:

        Measurement Condition
        Item Content
        Tester Connection G38-11 (LOUT) - Body ground
        Tool Setting 1 V/DIV., 1 ms/DIV.
        Vehicle Condition

        • Engine switch on (IG)

        • Refreshing seat switch (for LH) on and set to seat blower position
      OK
      Waveform is similar to that shown in the illustration.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY (for Front Passenger Seat) Click here

    NG

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here
    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here