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SEAT HEATER SYSTEM, Diagnostic DTC:B14C1

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DTC Code DTC Name
B14C1 Front Left Seat Heat Sensor Circuit
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DESCRIPTION

Output to the front seat cushion heater temperature sensor stops if one of the following occurs: 1) the temperature sensor is open or shorted; or 2) the temperature sensor is damaged and its output value does not change.

DTC No. Detection Item DTC Detection Condition Trouble Area
B14C1 Front Left Seat Heat Sensor Circuit Seat heater temperature sensor malfunction

  • Air conditioning amplifier assembly

  • Front seat cushion pad with cover LH

  • Wire harness or connector
Table 1. *a Air Conditioning Amplifier Assembly *b Front Seat Cushion Pad with Cover LH
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WIRING DIAGRAM

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PROCEDURE


  1. Click here

    CLEAR DTC


    1. Clear the DTCs.

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      1. Body Electrical > Air Conditioner > Clear DTCs


      Result
      Proceed to
      NEXT

  2. Click here

    CHECK FOR DTC


    1. Check for DTCs.

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      1. Body Electrical > Air Conditioner > Trouble Codes


      OK
      DTC B14C1 is not output.
      Result
      Proceed to
      OK
      NG

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    INSPECT FRONT SEAT CUSHION PAD WITH COVER LH


    1. Remove the front seat cushion pad with cover LH.

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    2. Inspect the front seat cushion pad with cover LH.

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      Result
      Proceed to
      OK
      NG

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    CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - FRONT SEAT CUSHION PAD WITH COVER LH)


    1. Disconnect the O10 air conditioning amplifier assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O10-19 (TSL) - b7-1 (THL) Always Below 1 Ω
      O10-19 (TSL) or b7-1 (THL) - Body ground Always 10 kΩ or higher
      O10-35 (SG-4) - b7-7 (PL) Always Below 1 Ω
      O10-35 (SG-4) or b7-7 (PL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR