Dtc B14C0 Front Right Seat Heat Sensor Circuit

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Seat. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CLEAR DTC

CHECK FOR DTC

READ VALUE USING GTS (FR SEAT HEATER TEMPERATURE)

INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY RH

INSPECT SEAT HEATER CONTROL SUB-ASSEMBLY RH

CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - SEAT HEATER CONTROL SUB-ASSEMBLY RH)

DTC B14C0 Front Right Seat Heat Sensor Circuit


DESCRIPTION

Output to the front seat cushion heater assembly RH 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 Code
DTC Detection Condition
Trouble Area
B14C0
Seat heater temperature sensor malfunction
  1. Air conditioning amplifier assembly
  2. Front seat cushion heater assembly RH
  3. Seat heater control sub-assembly RH
  4. Wire harness or connector

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Seat.Front Power Seat Control System (W/ Seat Position Memory System). Dtc B14C0 Front Right Seat Heat Sensor Circuit


INSPECTION PROCEDURE

1.CLEAR DTC

  1. Clear the DTCs (Click here).


NEXT


2.CHECK FOR DTC

  1. Check for DTCs (Click here).

    OK:
    DTC B14C0 is not output.


NG
Go to step 3
OK

USE SIMULATION METHOD TO CHECK (Click here)

3.READ VALUE USING GTS (FR SEAT HEATER TEMPERATURE)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Body Electrical / Air Conditioner / Data List.

  1. Read the Data List according to the display on the GTS.

    Air Conditioner
    Tester Display
    		Measurement Item/Display
    		Range
    		Normal Condition
    		Diagnostic Note
    FR Seat Heater Temperature
    		Front seat RH heater temperature
    		-29.7°C to 59.55°C
    		Within range from 32 to 43°C (89 to 109°F)
    		Front seat heater is on


NG
Go to step 4
OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (Click here)

4.INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY RH

  1. Remove the front seat cushion heater assembly RH (Click here).

  1. Inspect the front seat cushion heater assembly RH (Click here).



NG
REPLACE FRONT SEAT CUSHION HEATER ASSEMBLY RH (Click here)
OK


5.INSPECT SEAT HEATER CONTROL SUB-ASSEMBLY RH
Land Cruiser. Urj200, 202 Grj200 Vdj200.Seat.Front Power Seat Control System (W/ Seat Position Memory System). Dtc B14C0 Front Right Seat Heat Sensor Circuit

  1. Remove the seat heater control sub-assembly RH (Click here).

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    c1-5 (THR) - SHR-2 (TH1)
    		Always
    		Below 1 Ω
    c1-2 (PR) - SHR-3 (TH2)
    		Always
    		Below 1 Ω
    c1-5 (THR) or SHR-2 (TH1) - Body ground
    		Always
    		10 kΩ or higher
    c1-2 (PR) or SHR-3 (TH2) - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration
    *a
    		Seat Heater Control Sub-assembly RH
    (to Air Conditioning Amplifier Assembly)
    *b
    		Seat Heater Control Sub-assembly RH
    (to Front Seat Cushion Heater Assembly RH)


NG
REPLACE SEAT HEATER CONTROL SUB-ASSEMBLY RH (Click here)
OK


6.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - SEAT HEATER CONTROL SUB-ASSEMBLY RH)

  1. Disconnect the E35 air conditioning amplifier assembly connector.

  1. Disconnect the c1 seat heater control sub-assembly RH connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    c1-5 (THR) - E35-34 (SG-4)
    		Always
    		Below 1 Ω
    c1-5 (THR) or E35-34 (SG-4) - Body ground
    		Always
    		10 kΩ or higher
    c1-5 (THR) - E35-34 (TSR)
    		Always
    		Below 1 Ω
    c1-5 (THR) or E35-34 (TSR) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (Click here)