DTC : B1C68

DTC B1C68  : Driver's Heater Not Heating

DTC (Ventilated Seat Control Unit)

• NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Go to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks .
• The ventilated seat control unit does not turn on the seat heater until the seat core temperature is 85 degrees or less. Make sure the seat core temperature is below 85 degrees before troubleshooting.

1. Problem verification

   - 1. Clear the DTCs with the HDS.

   Clear DTCs

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

   - 3. Check for DTCs with the HDS.

   DTC Description	DTC
   B1C68 Driver's heater not heating

   Is DTC B1C68 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
   B1C55 Driver's heater thermistor circuit open
   B1C56 Driver's heater thermistor circuit short
   B1C60 Driver's heater current abnormal high
   B1C61 Driver's heater current abnormal low

   Are DTCs B1C55, B1C56, B1C60, and/or B1C61 indicated?

   YES 

   Go to DTC B1C55 troubleshooting.

   YES 

   Go to DTC B1C56 troubleshooting.

   YES 

   Go to DTC B1C60 troubleshooting.

   YES 

   Go to DTC B1C61 troubleshooting.

   NO 

   Replace the driver's Seat Cushion Heater (Ventilated Seats) .