DTC B14C3: Rear Left Seat Heat Sensor Circuit [12/2019 - 11/2023]: Procedure

1. Clear the DTCs.

   Body Electrical > Air Conditioner > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Check for DTCs.

   Body Electrical > Air Conditioner > Trouble Codes 

   OK

   DTC B14C3 is not output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

Result: 

NG 

See step  3

for Captain Seat Type: Refer to INSPECTION [12/2019 - ]

for 60/40 Split Seat Type LH Side: Refer to INSPECTION [12/2019 - ]

Result

Result: 

NG 

REPLACE REAR SEAT CUSHION HEATER LH (SEAT HEATER ASSEMBLY) 

for Captain Seat Type: Refer to REMOVAL [12/2019 - ]

for 60/40 Split Seat Type LH Side: Refer to REMOVAL [12/2019 - ]

Result: 

OK 

See step  4

1. Disconnect the H65 air conditioning amplifier assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H65-4 (TFAL) - f5-6	Always	Below 1 Ω
   H65-4 (TFAL) or f5-6 - Body ground	Always	10 kΩ or higher
   H65-1 (SG-6) - f5-7	Always	Below 1 Ω
   H65-1 (SG-6) or f5-7 - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR