SEAT HEATER SYSTEM ON-VEHICLE INSPECTION


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

    A01ENMUE06

    1. Disconnect the c13 and c1 heater control connectors.

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      c13-6 (E) - Body ground Always Below 1 Ω
      for RH
      Tester Connection Condition Specified Condition
      c1-6 (E) - Body ground Always Below 1 Ω

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

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

      Standard Voltage
      for LH
      Tester Connection Switch Condition Specified Condition
      c13-1 (SWL) - c13-6 (E) Engine switch on (IG), seat heater switch off Below 1 V
      Engine switch on (IG), seat heater switch on 11 to 14 V
      c13-4 (B) - c13-6 (E) Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V
      for RH
      Tester Connection Switch Condition Specified Condition
      c1-1 (SWR) - c1-6 (E) Engine switch on (IG), seat heater switch off Below 1 V
      Engine switch on (IG), seat heater switch on 11 to 14 V
      c1-4 (B1) - c1-6 (E) Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V

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

    4. Connect the c13 and c1 heater control connectors.

    5. A01ES8FE05

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

      Standard Voltage
      for LH
      Tester Connection Switch Condition Specified Condition
      c13-5 (THL) - Body ground Engine switch on (IG), seat heater switch on, volume Min → Max Gradual increase from below 1 V to 11 to 14 V
      for RH
      Tester Connection Switch Condition Specified Condition
      c1-5 (THR) - Body ground Engine switch on (IG), seat heater switch on, volume Min → Max Gradual increase from below 1 V to 11 to 14 V

      If the result is not as specified, the seat heater control may have a malfunction.