DTC B14C2-11: Rear Right Seat Heat Sensor Circuit Short to Ground; DTC B14C2-15: Rear Right Seat Heat Sensor Circuit Short to Battery or Open [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 

   Result

   Result	Proceed to
   B14C2-11 and B14C2-15 are not output	A
   B14C2-11 is output	B
   B14C2-15 is output	C

Result: 

A 

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

Result: 

C 

See step  4

Result: 

B 

See step  3

1. Disconnect the H65 air conditioning amplifier assembly connector.
2. Disconnect the f1 rear seat cushion heater RH (seat heater assembly) connector.
3. Disconnect the f5 rear seat cushion heater LH (seat heater assembly) connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H65-5 (TFAR) or f1-6 - Body ground	Always	10 kΩ or higher
   H65-1 (SG-6) or f1-7 - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

See step  5

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Disconnect the H65 air conditioning amplifier assembly connector.
2. Disconnect the f1 rear seat cushion heater RH (seat heater assembly) connector.
3. Disconnect the f5 rear seat cushion heater LH (seat heater assembly) connector.
4. Measure the voltage and resistance according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H65-5 (TFAR) - Body ground	Ignition switch ON	Below 1 V
   H65-1 (SG-6) - Body ground	Ignition switch ON	Below 1 V

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H65-5 (TFAR) - f1-6	Always	Below 1 Ω
   H65-1 (SG-6) - f1-7	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

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

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

Result

Result: 

OK 

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [11/2023 - ] 

Result: 

NG 

REPLACE REAR SEAT CUSHION HEATER RH (SEAT HEATER ASSEMBLY) 

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

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