B14F1
SEAT: CLIMATE CONTROL SEAT SYSTEM: B14F1: Seatback Peltier Temperature Sensor Malfunction
B14F1 - Seatback Peltier Temperature Sensor Malfunction
DESCRIPTION
Output to the seat climate control controller or rear seatback climate controller blower stops if one of the following occurs: 1) the seat climate control controller temperature sensor or rear seatback climate control blower temperature sensor is open or shorted; or 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 Climate Control Seat System.
Result
D -- READ VALUE USING TECHSTREAM (SEATBACK TEMPERATURE SENSOR)
C -- READ VALUE USING TECHSTREAM (SEATBACK TEMPERATURE SENSOR)
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 Disassembly
3. INSPECT SEAT CLIMATE CONTROL CONTROLLER LH
(a) Disconnect the e51 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 Disassembly
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (SEAT CLIMATE CONTROL ECU - SEAT CLIMATE CONTROL CONTROLLER LH)
(a) Disconnect the e34 ECU connector.
(b) Disconnect the e51 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 Disassembly
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 Disassembly
6. INSPECT SEAT CLIMATE CONTROL CONTROLLER RH
(a) Disconnect the e21 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 Disassembly
OK -- Continue to next step.
7. CHECK HARNESS AND CONNECTOR (SEAT CLIMATE CONTROL ECU - SEAT CLIMATE CONTROL CONTROLLER RH)
(a) Disconnect the e4 ECU connector.
(b) Disconnect the e21 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 Disassembly
8. READ VALUE USING TECHSTREAM (SEATBACK TEMPERATURE SENSOR)
(a) Check the Data List for proper functioning of the temperature sensor.
Rear Left Seat A/C
OK:
The display is as specified in the normal condition.
NG -- INSPECT REAR SEATBACK CLIMATE CONTROL BLOWER LH
OK -- REPLACE SEAT CLIMATE CONTROL ECU Disassembly
9. INSPECT REAR SEATBACK CLIMATE CONTROL BLOWER LH
(a) Disconnect the f32 climate control blower connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE REAR SEATBACK CLIMATE CONTROL BLOWER LH Disassembly
OK -- Continue to next step.
10. CHECK HARNESS AND CONNECTOR (SEAT CLIMATE CONTROL ECU - REAR SEATBACK CLIMATE CONTROL BLOWER LH)
(a) Disconnect the f28 ECU connector.
(b) Disconnect the f32 climate control blower 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 Disassembly
11. READ VALUE USING TECHSTREAM (SEATBACK TEMPERATURE SENSOR)
(a) Check the Data List for proper functioning of the temperature sensor.
Rear Right Seat A/C
OK:
The display is as specified in the normal condition.
Result
C -- REPLACE SEAT CLIMATE CONTROL ECU Disassembly
B -- REPLACE SEAT CLIMATE CONTROL ECU Disassembly
A -- Continue to next step.
12. INSPECT REAR SEATBACK CLIMATE CONTROL BLOWER RH
(a) Disconnect the f12 climate control blower connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
Result
C -- REPLACE REAR SEATBACK CLIMATE CONTROL BLOWER RH Disassembly
B -- REPLACE REAR SEATBACK CLIMATE CONTROL BLOWER RH Disassembly
A -- Continue to next step.
13. CHECK HARNESS AND CONNECTOR (SEAT CLIMATE CONTROL ECU - REAR SEATBACK CLIMATE CONTROL BLOWER RH)
(a) Disconnect the f8 ECU connector.
(b) Disconnect the e12 climate control blower connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
Result
C -- REPAIR OR REPLACE HARNESS OR CONNECTOR
B -- REPLACE SEAT CLIMATE CONTROL ECU Disassembly
A -- REPLACE SEAT CLIMATE CONTROL ECU Disassembly