Click here

SEAT HEATER SYSTEM, Diagnostic DTC:B14C2

Click here
Click here
DTC Code DTC Name
B14C2 Rear Right Seat Heat Sensor Circuit
Click here

DESCRIPTION

Output to the rear 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
B14C2 Rear Right Seat Heat Sensor Circuit Seat heater temperature sensor malfunction

  • Air conditioning amplifier assembly

  • Separate type rear seat cushion cover RH*1

  • Bench type rear seat cushion cover*2

  • Harness or connector

Figure 2. w/o Rear Power Seat: B004UONE14
Table 2.
*a Bench Type Rear Seat Cushion Cover
*b Air Conditioning Amplifier Assembly
Figure 1. w/ Rear Power Seat: Table 1. *a Separate Type Rear Seat Cushion Cover RH *b Air Conditioning Amplifier Assembly
Click here

WIRING DIAGRAM

Click here

PROCEDURE


  1. Click here

    CLEAR DTC


    1. Clear the DTCs.

      Click here


      1. Body Electrical > Air Conditioner > Clear DTCs


      Result
      Proceed to
      NEXT

  2. Click here

    CHECK FOR DTC


    1. Check for DTCs.

      Click here


      1. Body Electrical > Air Conditioner > Trouble Codes


      OK
      DTC B14C2 is not output.
      Result
      Result Proceed to
      OK A
      NG (w/ Rear Power Seat) B
      NG (w/o Rear Power Seat) C

  3. Click here

    INSPECT SEPARATE TYPE REAR SEAT CUSHION COVER RH


    1. Remove the separate type rear seat cushion cover RH.

      Click here

    2. Inspect the separate type rear seat cushion cover RH.

      Click here

      Result
      Proceed to
      OK
      NG

  4. Click here

    CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - SEPARATE TYPE REAR SEAT CUSHION COVER RH)


    1. Disconnect the G63 and G64 air conditioning amplifier assembly connectors.

    2. Disconnect the T2 separate type rear seat cushion cover RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G64-23 (TFAR) - T2-3 Always Below 1 Ω
      G64-23 (TFAR) or T2-3 - Other terminals and body ground Always 10 kΩ or higher
      G63-9 (SG-6) - T2-4 Always Below 1 Ω
      G63-9 (SG-6) or T2-4 - Other terminals and 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

  5. Click here

    INSPECT BENCH TYPE REAR SEAT CUSHION COVER


    1. Remove the bench type rear seat cushion cover.

      Click here

    2. Inspect the bench type rear seat cushion cover.

      Click here

      Result
      Proceed to
      OK
      NG

  6. Click here

    CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BENCH TYPE REAR SEAT CUSHION COVER)


    1. Disconnect the G63 and G64 air conditioning amplifier assembly connectors.

    2. Disconnect the R27 bench type rear seat cushion cover connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G64-23 (TFAR) - R27-9 Always Below 1 Ω
      G64-23 (TFAR) or R27-9 - Other terminals and body ground Always 10 kΩ or higher
      G63-9 (SG-6) - R27-3 Always Below 1 Ω
      G63-9 (SG-6) or R27-3 - Other terminals and 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