B14F0
SEAT: CLIMATE CONTROL SEAT SYSTEM: B14F0: Cushion Peltier Temperature Sensor Malfunction
B14F0 - Cushion Peltier Temperature Sensor Malfunction
DESCRIPTION
Output from the seat climate control controller stops if one of the following occurs: 1) the seat climate control controller's 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 (SEAT CUSHION TEMPERATURE SENSOR)
C -- READ VALUE USING TECHSTREAM (SEAT CUSHION TEMPERATURE SENSOR)
B -- READ VALUE USING TECHSTREAM (SEAT CUSHION TEMPERATURE SENSOR)
A -- Continue to next step.
2. READ VALUE USING TECHSTREAM (SEAT CUSHION 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 e33 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 e33 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 (SEAT CUSHION 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 e2 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 e2 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 (SEAT CUSHION 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 SEAT CLIMATE CONTROL CONTROLLER LH
OK -- REPLACE SEAT CLIMATE CONTROL ECU Disassembly
9. INSPECT REAR SEAT CLIMATE CONTROL CONTROLLER LH
(a) Disconnect the z65 climate control controller LH connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE REAR SEAT CLIMATE CONTROL CONTROLLER LH Disassembly
OK -- Continue to next step.
10. CHECK HARNESS AND CONNECTOR (HEATER BLOWER WIRE)
(a) Disconnect the fz2 joining connector.
(b) Disconnect the z65 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 (HEATER BLOWER WIRE)
OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (SEAT CLIMATE CONTROL ECU - HEATER BLOWER WIRE)
11. READ VALUE USING TECHSTREAM (SEAT CUSHION 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 SEAT CLIMATE CONTROL CONTROLLER RH
(a) Disconnect the z63 climate control controller connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
Result
C -- REPLACE SEAT CLIMATE CONTROL CONTROLLER RH Disassembly
B -- REPLACE REAR SEAT CLIMATE CONTROL CONTROLLER RH Disassembly
A -- Continue to next step.
13. CHECK HARNESS AND CONNECTOR (HEATER BLOWER WIRE)
(a) Disconnect the fz1 joining connector.
(b) Disconnect the z63 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 (HEATER BLOWER WIRE)
OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (SEAT CLIMATE CONTROL ECU - HEATER BLOWER WIRE)