B14F1

SEAT: CLIMATE CONTROL SEAT SYSTEM: B14F1: Seatback Peltier Temperature Sensor Malfunction

DTC B14F1 - Seatback Peltier Temperature Sensor Malfunction

DESCRIPTION

Outputs to the seat climate control controller stop if one of the following occurs: 1) the seat climate control controller temperature sensor is open or shorted; 2) the temperature sensor is damaged and its output value does not change.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- READ VALUE USING TECHSTREAM (SEATBACK TEMPERATURE SENSOR)
A -- Continue to next step.
2. READ VALUE USING TECHSTREAM (SEATBACK TEMPERATURE SENSOR)
(a) Check the Data List for proper functioning of the temperature sensor.

Front Left Seat A/C





OK:
The display is as specified in the normal condition.
NG -- INSPECT SEAT CLIMATE CONTROL CONTROLLER LH
OK -- REPLACE SEAT CLIMATE CONTROL ECU
3. INSPECT SEAT CLIMATE CONTROL CONTROLLER LH





(a) Disconnect the c41 climate control controller connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE SEAT CLIMATE CONTROL CONTROLLER LH
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (SEAT CLIMATE CONTROL ECU - SEAT CLIMATE CONTROL CONTROLLER LH)





(a) Disconnect the c38 ECU connector.
(b) Disconnect the c41 climate control controller connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE SEAT CLIMATE CONTROL ECU
5. READ VALUE USING TECHSTREAM (SEATBACK TEMPERATURE SENSOR)
(a) Check the Data List for proper functioning of the temperature sensor.

Front Right Seat A/C





OK:
The display is as specified in the normal condition.
NG -- INSPECT SEAT CLIMATE CONTROL CONTROLLER RH
OK -- REPLACE SEAT CLIMATE CONTROL ECU
6. INSPECT SEAT CLIMATE CONTROL CONTROLLER RH





(a) Disconnect the c27 climate control controller connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE SEAT CLIMATE CONTROL CONTROLLER RH
OK -- Continue to next step.
7. CHECK HARNESS AND CONNECTOR (SEAT CLIMATE CONTROL ECU - SEAT CLIMATE CONTROL CONTROLLER RH)





(a) Disconnect the c24 ECU connector.
(b) Disconnect the c27 climate control controller connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE SEAT CLIMATE CONTROL ECU