DTC B1C71

DTC B1C71  : Passenger's main heater switch failure

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
   B1C71 Passenger's main heater switch failure

   Is DTC B1C71 indicated?

   YES 

   Replace the front seat heater control unit .

   NO 

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