DESCRIPTION
Output to the front seat cushion 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 |
---|---|---|---|
B14C1 | Front Left Seat Heat Sensor Circuit | Seat heater temperature sensor malfunction |
|
WIRING DIAGRAM
PROCEDURE
1. | CLEAR DTC |
(a) Clear the DTCs.
Click here
Body Electrical > Air Conditioner > Clear DTCs
|
2. | CHECK FOR DTC |
(a) Check for DTCs.
Click here
Body Electrical > Air Conditioner > Trouble CodesOK:
DTC B14C1 is not output.
Result | Proceed to |
---|---|
OK | A |
NG (for Standard Seat Type) | B |
NG (for Sports Seat Type) | C |
A | USE SIMULATION METHOD TO CHECK |
C | GO TO STEP 5 |
|
3. | INSPECT FRONT SEAT CUSHION HEATER LH (SEAT HEATER ASSEMBLY) |
(a) Remove the front seat cushion heater LH (seat heater assembly).
Click here
(b) Inspect the front seat cushion heater LH (seat heater assembly).
Click here
NG | REPLACE FRONT SEAT CUSHION HEATER LH (SEAT HEATER ASSEMBLY) |
|
4. | CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - FRONT SEAT CUSHION HEATER LH (SEAT HEATER ASSEMBLY)) |
(a) Disconnect the J42 and J48 air conditioning amplifier assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J48-17 (TSL) - c8-6 (THR) | Always | Below 1 Ω |
J48-17 (TSL) or c8-6 (THR) - Body ground | Always | 10 kΩ or higher |
J42-8 (SG-5) - c8-4 (PR) | Always | Below 1 Ω |
J42-8 (SG-5) or c8-4 (PR) - Body ground | Always | 10 kΩ or higher |
OK | REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
5. | INSPECT FRONT SEAT CUSHION HEATER (FRONT SEAT CUSHION PAD WITH COVER LH) |
(a) Remove the front seat cushion heater (front seat cushion pad with cover LH).
Click here
(b) Inspect the front seat cushion heater (front seat cushion pad with cover LH).
Click here
NG | REPLACE FRONT SEAT CUSHION HEATER (FRONT SEAT CUSHION PAD WITH COVER LH) |
|
6. | CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - FRONT SEAT CUSHION HEATER (FRONT SEAT CUSHION PAD WITH COVER LH)) |
(a) Disconnect the J42 and J48 air conditioning amplifier assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J48-17 (TSL) - c8-6 (THR) | Always | Below 1 Ω |
J48-17 (TSL) or c8-6 (THR) - Body ground | Always | 10 kΩ or higher |
J42-8 (SG-5) - c8-4 (PR) | Always | Below 1 Ω |
J42-8 (SG-5) or c8-4 (PR) - Body ground | Always | 10 kΩ or higher |
OK | REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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