DTC U1280 (Front Seat Heater Control Unit)

DTC U1280  : Seat heater control unit communication bus line error (BUS-OFF)

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. Wait for at least 6 seconds.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC
   U1280 Seat heater control unit communication bus line error (BUS-OFF)

   Is DTC U1280 indicated?

   YES 

   Go to body control module DTC U1280 troubleshooting .

   NO 

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