SEAT HEATER SYSTEM ON-VEHICLE INSPECTION


  1. INSPECT SEAT HEATER CONTROL SUB-ASSEMBLY LH (for Front Side)


    1. A01DPWBE06
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Seat Heater Control Sub-assembly LH [for Front Side])

      Disconnect the seat heater control sub-assembly LH (for Front Side) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      b7-6 (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
      b7-1 (SWL) - b7-6 (E) Ignition switch ON, seat heater switch LH off Below 1 V
      Ignition switch ON, seat heater switch LH on 11 to 14 V
      b7-4 (B) - b7-6 (E) Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    4. Connect the seat heater control sub-assembly LH (for Front Side) connector.

    5. A01DPJAE01
      Text in Illustration
      *a

      Component with harness connected

      (Seat Heater Control Sub-assembly LH [for Front Side])

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      b7-5 (THL) - Body ground Ignition switch ON, seat heater switch LH on, MIN → MAX Gradual increase between value below 1 V and value from 11 to 14 V

      If the result is not as specified, the seat seat heater control sub-assembly LH (for Front Side) may have a malfunction.

  2. INSPECT SEAT HEATER CONTROL SUB-ASSEMBLY RH (for Front Side)


    1. A01DPWBE07
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Seat Heater Control Sub-assembly RH [for Front Side])

      Disconnect the seat heater control sub-assembly RH (for Front Side) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      a7-6 (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
      a7-1 (SWR) - a7-6 (E) Ignition switch ON, seat heater switch RH off Below 1 V
      Ignition switch ON, seat heater switch RH on 11 to 14 V
      a7-4 (B1) - a7-6 (E) Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    4. Connect the seat heater control sub-assembly RH (for Front Side) connector.

    5. A01DPJAE02
      Text in Illustration
      *a

      Component with harness connected

      (Seat Heater Control Sub-assembly RH [for Front Side])

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      a7-5 (THR) - Body ground Ignition switch ON, seat heater switch RH on, MIN → MAX Gradual increase between value below 1 V and value from 11 to 14 V

      If the result is not as specified, the seat seat heater control sub-assembly RH (for Front Side) may have a malfunction.

  3. INSPECT SEAT HEATER CONTROL SUB-ASSEMBLY LH (for Rear Side) (w/ Rear Seat Heater System)


    1. A01DPWBE34
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Seat Heater Control Sub-assembly LH [for Rear Side])

      Disconnect the seat heater control sub-assembly LH (for Rear Side) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      x1-6 (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
      x1-1 (SWL) - x1-6 (E) Ignition switch ON, seat heater switch LH off Below 1 V
      Ignition switch ON, seat heater switch LH on 11 to 14 V
      x1-4 (B) - x1-6 (E) Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    4. Connect the seat heater control sub-assembly LH (for Rear Side) connector.

    5. A01DPJAE24
      Text in Illustration
      *a

      Component with harness connected

      (Seat Heater Control Sub-assembly LH [for Rear Side])

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      x1-5 (THL) - Body ground Ignition switch ON, seat heater switch LH on, MIN → MAX Gradual increase between value below 1 V and value from 11 to 14 V

      If the result is not as specified, the seat seat heater control sub-assembly LH (for Rear Side) may have a malfunction.

  4. INSPECT SEAT HEATER CONTROL SUB-ASSEMBLY RH (for Rear Side) (w/ Rear Seat Heater System)


    1. A01DPWBE35
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Seat Heater Control Sub-assembly RH [for Rear Side])

      Disconnect the seat heater control sub-assembly RH (for Rear Side) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      w1-6 (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
      w1-1 (PWR) - w1-6 (E) Ignition switch ON, seat heater switch RH off Below 1 V
      Ignition switch ON, seat heater switch RH on 11 to 14 V
      w1-4 (B) - w1-6 (E) Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    4. Connect the seat heater control sub-assembly RH (for Rear Side) connector.

    5. A01DPJAE25
      Text in Illustration
      *a

      Component with harness connected

      (Seat Heater Control Sub-assembly RH [for Rear Side])

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      w1-5 (THR) - Body ground Ignition switch ON, seat heater switch RH on, MIN → MAX Gradual increase between value below 1 V and value from 11 to 14 V

      If the result is not as specified, the seat seat heater control sub-assembly RH (for Rear Side) may have a malfunction.