RM36D0EC _58 Vehicle Interior _083102 SEAT _0407267 SEAT HEATER SYSTEM(for Gasoline Model) C

SEAT  SEAT HEATER SYSTEM(for Gasoline Model)  B14C111  Front Left Seat Heat Sensor Circuit Short to Ground  B14C115  Front Left Seat Heat Sensor Circuit Short to Battery or Open  


DESCRIPTION

Output to the LH side front seat 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
B14C111 Front Left Seat Heat Sensor Circuit Short to Ground LH side front seat heater temperature sensor circuit short to ground
·

Separate type front seat cushion cover LH (front seat cushion heater)

·

Air conditioning amplifier assembly

·

Harness or connector


B14C115 Front Left Seat Heat Sensor Circuit Short to Battery or Open LH side front seat heater temperature sensor circuit short to battery or open
·

Separate type front seat cushion cover LH (front seat cushion heater)

·

Air conditioning amplifier assembly

·

Harness or connector



WIRING DIAGRAM

E396781E72
1.208,2.115 2.792,2.479 1.583,0.365 10 false Air Conditioning Amplifier Assembly 4.271,2.104 7.031,2.479 2.76,0.375 10 false Separate Type Front Seat Cushion Cover LH (Front Seat Cushion Heater) 2.281,0.948 2.635,1.115 0.354,0.167 10 false TSL 2.24,1.469 2.646,1.635 0.406,0.167 10 false SG-7 1.219,1.948 1.5,2.125 0.281,0.177 10 false G50 2.646,0.833 2.833,1.01 0.188,0.177 10 false 13 2.677,1.365 2.792,1.542 0.115,0.177 10 false 3 4.26,1.948 4.542,2.125 0.281,0.177 10 false T17 4.323,0.833 4.51,1.01 0.188,0.177 10 false 4 4.313,1.354 4.5,1.531 0.188,0.177 10 false 5

PROCEDURE

1.CLEAR DTC
a.

Clear the DTCs.

Click hereVehicle Interior>SEAT>SEAT HEATER SYSTEM (for Gasoline Model)>DTC CHECK / CLEAR

Body Electrical > Air Conditioner > Clear DTCs
50002 450

Result:
Proceed to
NEXT



NEXT

2.CHECK FOR DTC
2.CHECK FOR DTC
a.

Check for DTCs.

Click hereVehicle Interior>SEAT>SEAT HEATER SYSTEM (for Gasoline Model)>DTC CHECK / CLEAR

Body Electrical > Air Conditioner > Trouble Codes
50001 450
OK:

DTC B14C111 or B14C115 is not output.



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

3.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - SEPARATE TYPE FRONT SEAT CUSHION COVER LH (FRONT SEAT CUSHION HEATER))
3.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - SEPARATE TYPE FRONT SEAT CUSHION COVER LH (FRONT SEAT CUSHION HEATER))
a.

Disconnect the G50 air conditioning amplifier assembly connector.


b.

Disconnect the T17 separate type front seat cushion cover LH (front seat cushion heater) connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
G50-13 (TSL) - T17-4 Always Below 1 Ω
G50-13 (TSL) or T17-4 - Other terminals and body ground Always 10 kΩ or higher
G50-3 (SG-7) - T17-5 Always Below 1 Ω
G50-3 (SG-7) or T17-5 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.REPLACE SEPARATE TYPE FRONT SEAT CUSHION COVER LH (FRONT SEAT CUSHION HEATER)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.REPLACE SEPARATE TYPE FRONT SEAT CUSHION COVER LH (FRONT SEAT CUSHION HEATER)
a.

Replace the separate type front seat cushion cover LH (front seat cushion heater) with a new or known good one.

Click hereVehicle Interior>SEAT>FRONT SEAT CUSHION HEATER (for GTMC Made Power Seat)>REMOVAL


Result:
Proceed to
NEXT



NEXT

5.CHECK FOR DTC
5.CHECK FOR DTC
a.

Clear the DTCs.

Click hereVehicle Interior>SEAT>SEAT HEATER SYSTEM (for Gasoline Model)>DTC CHECK / CLEAR

Body Electrical > Air Conditioner > Clear DTCs
50002 450

b.

Check for DTCs.

Click hereVehicle Interior>SEAT>SEAT HEATER SYSTEM (for Gasoline Model)>DTC CHECK / CLEAR

Body Electrical > Air Conditioner > Trouble Codes
50001 450
OK:

DTC B14C111 and B14C115 are not output.



Result:
Proceed to
OK
NG



OK

END (SEPARATE TYPE FRONT SEAT CUSHION COVER LH (FRONT SEAT CUSHION HEATER) WAS DEFECTIVE)

NG

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL