DTC U1280
DTC U1280 : Seat heater control unit communication bus line error (BUS-OFF) (front seat)
| DTC Description | DTC |
|---|---|
| U1280 Seat heater control unit communication bus line error (BUS-OFF) (front seat) |
DTC (Front Seat Heater Control Unit)
NOTE:
- If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks (2014 2015 2016), or Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks (2017 2018 2019 2020) .
- The 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.
- 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) (front seat) Is DTC U1280 indicated?
YES
Go to MICU DTC U1280 troubleshooting - Refer to: DTC Troubleshooting: U1280 (2017 2018 2019 2020), or DTC Troubleshooting: U1280 (MICU (Multiplex Integrated Control Unit)) .
NO
Intermittent failure, the system is OK at this time. Check for loose or poor connections.