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 - Go to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks .
• The front seat heater 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.

DTC (Front Seat Heater Control Unit)

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
   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 

   Go to DTC B1C57  troubleshooting.

   YES 

   Go to DTC B1C58  troubleshooting.

   YES 

   Go to DTC B1C62  troubleshooting.

   YES 

   Go to DTC B1C63  troubleshooting.

   NO 

   Replace the front passenger's Seat Cushion Heater or Seat Cushion Heater - Ventilated Seats .