DTC B1C69

DTC B1C69  : Passenger's heater not heating

NOTE: 

• If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .
• The front seat heater control unit does not turn on the front seat heater until the seat core temperature is 185°F (85°C) or less. Make sure the seat core temperature is below 185°F (85°C) before troubleshooting.

DTC (Front Seat Heater Control Unit)

1. Problem verification

   -1. Clear the DTCs with the HDS.

   -2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

   -3. Check for DTCs with the HDS.

   DTC Description	DTC
   B1C69 Passenger's heater not heating

   Is DTC B1C69 indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for loose or poor connections.

2. DTC check

   -1. Check for DTCs with the HDS.

   DTC Description	DTC
   B1C57 Passenger's heater thermistor circuit open
   B1C58 Passenger's heater thermistor circuit short
   B1C62 Passenger's heater current abnormal high
   B1C63 Passenger's heater current abnormal low

   Are DTCs B1C57, B1C58, B1C62, and/or B1C63 indicated?

   YES: DTC B1C57 is indicated

   Go to DTC B1C57 troubleshooting .

   YES: DTC B1C58 is indicated

   Go to DTC B1C58 troubleshooting .

   YES: DTC B1C62 is indicated

   Go to DTC B1C62 troubleshooting .

   YES: DTC B1C63 is indicated

   Go to DTC B1C63 troubleshooting .

   NO 

   Replace the front passenger's seat cushion heater .