DTC B14C1: Front Left Seat Heat Sensor Circuit: Procedure

1. Clear the DTCs. Refer to DTC CHECK / CLEAR .

NEXT: Go to next step 

1. Check for DTCs. Refer to DTC CHECK / CLEAR .

   OK

   DTC B14C1 is not output.

NG → See step   3 

OK → See step   7 

1. Remove the front seat cushion heater assembly LH. Refer to REMOVAL .
2. Inspect the front seat cushion heater assembly LH. Refer to INSPECTION .

NG → See step   8 

OK: Go to next step 

1. Disconnect the D63 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
   D63-4 (TSL) - S12-2	Always	Below 1 Ω
   D63-23 (SGND) - S12-4	Always	Below 1 Ω
   D63-4 (TSL) - Body ground	Always	10 kΩ or higher
   D63-23 (SGND) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the seat heater control sub-assembly LH. Refer to DISASSEMBLY .

NEXT: Go to next step 

1. Check that the front seat heater. Refer to OPERATION CHECK .

   OK

   The front seat heater operates normally.

NG → See step   9 

OK → END (SEAT HEATER CONTROL SUB-ASSEMBLY LH WAS DEFECTIVE)